GridView的一些技巧~

Posted on 2007-09-14 11:51 礼拜一阅读(409) 评论(0) 编辑收藏举报

快速预览：
GridView无代码分页排序
GridView选中，编辑，取消，删除
GridView正反双向排序
GridView和下拉菜单DropDownList结合
GridView和CheckBox结合
鼠标移到GridView某一行时改变该行的背景色方法一
鼠标移到GridView某一行时改变该行的背景色方法二
GridView实现删除时弹出确认对话框
GridView实现自动编号
GridView实现自定义时间货币等字符串格式
GridView实现用“...”代替超长字符串
GridView一般换行与强制换行
GridView显示隐藏某一列
GridView弹出新页面/弹出新窗口
GridView固定表头(不用javascript只用CSS，2行代码，很好用)
GridView合并表头多重表头无错完美版（以合并3列3行举例）
GridView突出显示某一单元格（例如金额低于多少，分数不及格等）
GridView加入自动求和求平均值小计
GridView数据导入Excel/Excel数据读入GridView

1.GridView无代码分页排序：

效果图：

1.AllowSorting设为True，aspx代码中是AllowSorting="True"；
2.默认1页10条，如果要修改每页条数，修改PageSize即可，在aspx代码中是PageSize="12"。
3.默认的是单向排序的，右击GridView弹出“属性”，选择AllowSorting为True即可。

2.GridView选中，编辑，取消，删除：

效果图：

后台代码：
你可以使用sqlhelper,本文没用。代码如下：
using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;

public partial class _Default : System.Web.UI.Page
{

//清清月儿http://blog.csdn.net/21aspnet
SqlConnection sqlcon;
SqlCommand sqlcom;
string strCon = "Data Source=(local);Database=数据库名;Uid=帐号;Pwd=密码";
protected void Page_Load(object sender, EventArgs e)
{
    if (!IsPostBack)
    {
        bind();
    }
}
protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)
{
    GridView1.EditIndex = e.NewEditIndex;
    bind();
}

//删除
protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
    string sqlstr = "delete from 表 where id='" + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";
    sqlcon = new SqlConnection(strCon);
    sqlcom = new SqlCommand(sqlstr,sqlcon);
    sqlcon.Open();
    sqlcom.ExecuteNonQuery();
    sqlcon.Close();
    bind();
}

//更新
protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
    sqlcon = new SqlConnection(strCon);
    string sqlstr = "update 表 set 字段1='"
        + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim() + "',字段2='"
        + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[2].Controls[0])).Text.ToString().Trim() + "',字段3='"
        + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim() + "' where id='"
        + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";
    sqlcom=new SqlCommand(sqlstr,sqlcon);
    sqlcon.Open();
    sqlcom.ExecuteNonQuery();
    sqlcon.Close();
    GridView1.EditIndex = -1;
    bind();
}

//取消
protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
{
GridView1.EditIndex = -1;
bind();
}

//绑定
public void bind()
{
    string sqlstr = "select * from 表";
    sqlcon = new SqlConnection(strCon);
    SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);
    DataSet myds = new DataSet();
    sqlcon.Open();
    myda.Fill(myds, "表");
    GridView1.DataSource = myds;
    GridView1.DataKeyNames = new string[] { "id" };//主键
    GridView1.DataBind();
    sqlcon.Close();
}
}

前台主要代码：
                  ... ...
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="4"
                ForeColor="#333333" GridLines="None" OnRowDeleting="GridView1_RowDeleting" OnRowEditing="GridView1_RowEditing"
                OnRowUpdating="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit">
                <FooterStyle BackColor="#990000" Font-Bold="True" ForeColor="White" />
                <Columns>
                  <asp:BoundField DataField="身份证号码" HeaderText="用户ID" ReadOnly="True" />
                  <asp:BoundField DataField="姓名" HeaderText="用户姓名" />
                  <asp:BoundField DataField="员工性别" HeaderText="性别" />
                  <asp:BoundField DataField="家庭住址" HeaderText="家庭住址" />
                  <asp:CommandField HeaderText="选择" ShowSelectButton="True" />
                  <asp:CommandField HeaderText="编辑" ShowEditButton="True" />
                  <asp:CommandField HeaderText="删除" ShowDeleteButton="True" />
                </Columns>
                <RowStyle ForeColor="#000066" />
                <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />
                <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />
                <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />
            </asp:GridView>

3.GridView正反双向排序：
效果图：点姓名各2次的排序，点其他也一样可以。

//清清月儿的博客http://blog.csdn.net/21aspnet
SqlConnection sqlcon;
string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=";
protected void Page_Load(object sender, EventArgs e)
{
    if (!IsPostBack)
    {
        ViewState["SortOrder"] = "身份证号码";
        ViewState["OrderDire"] = "ASC";
        bind();
    }
}
protected void GridView1_Sorting(object sender, GridViewSortEventArgs e)
{
    string sPage = e.SortExpression;
    if (ViewState["SortOrder"].ToString() == sPage)
    {
        if (ViewState["OrderDire"].ToString() == "Desc")
          ViewState["OrderDire"] = "ASC";
        else
          ViewState["OrderDire"] = "Desc";
    }
    else
    {
        ViewState["SortOrder"] = e.SortExpression;
    }
    bind();
}

public void bind()
{

    string sqlstr = "select top 5 * from 飞狐工作室";
    sqlcon = new SqlConnection(strCon);
    SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);
    DataSet myds = new DataSet();
    sqlcon.Open();
    myda.Fill(myds, "飞狐工作室");
    DataView view = myds.Tables["飞狐工作室"].DefaultView;
    string sort = (string)ViewState["SortOrder"] + " " + (string)ViewState["OrderDire"];
    view.Sort = sort;
    GridView1.DataSource = view;
    GridView1.DataBind();
    sqlcon.Close();
}
}

前台主要代码：
<asp:GridView ID="GridView1" runat="server" AllowSorting="True" AutoGenerateColumns="False"
                CellPadding="3" Font-Size="9pt" OnSorting="GridView1_Sorting" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px">
                <FooterStyle BackColor="White" ForeColor="#000066" />
                <Columns>
                  <asp:BoundField DataField="身份证号码" HeaderText="用户ID" SortExpression="身份证号码" />
                  <asp:BoundField DataField="姓名" HeaderText="用户姓名" SortExpression="姓名"/>
                  <asp:BoundField DataField="员工性别" HeaderText="性别" SortExpression="员工性别"/>
                  <asp:BoundField DataField="家庭住址" HeaderText="家庭住址" SortExpression="家庭住址"/>

                </Columns>
                <RowStyle ForeColor="#000066" />
                <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />
                <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />
                <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />
            </asp:GridView>

4.GridView和下拉菜单DropDownList结合：

效果图：

后台代码：
using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;
public partial class Default4 : System.Web.UI.Page
{
SqlConnection sqlcon;
string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";
protected void Page_Load(object sender, EventArgs e)
{
    DropDownList ddl;
    if (!IsPostBack)
    {
        string sqlstr = "select top 5 * from 飞狐工作室";
        sqlcon = new SqlConnection(strCon);
        SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);
        DataSet myds = new DataSet();
        sqlcon.Open();
        myda.Fill(myds, "飞狐工作室");
        GridView1.DataSource = myds;
        GridView1.DataBind();
        for (int i = 0; i <= GridView1.Rows.Count - 1; i++)
        {
          DataRowView mydrv = myds.Tables["飞狐工作室"].DefaultView;
          if (Convert.ToString(mydrv["员工性别"]).Trim() == "True")
          {
            ddl = (DropDownList)GridView1.Rows.FindControl("DropDownList1");
            ddl.SelectedIndex = 0;
          }
          if (Convert.ToString(mydrv["员工性别"]).Trim() == "False")
          {
            ddl = (DropDownList)GridView1.Rows.FindControl("DropDownList1");
            ddl.SelectedIndex = 1;
          }
        }
        sqlcon.Close();
    }
}
public SqlDataReader ddlbind()
{
    string sqlstr = "select distinct 员工性别 from 飞狐工作室";
    sqlcon = new SqlConnection(strCon);
    SqlCommand sqlcom = new SqlCommand(sqlstr, sqlcon);
    sqlcon.Open();
    return sqlcom.ExecuteReader();
}

前台主要代码：
<asp:GridView ID="GridView1" runat="server" AllowSorting="True" AutoGenerateColumns="False"
                CellPadding="3" Font-Size="9pt" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px">
                <FooterStyle BackColor="White" ForeColor="#000066" />
                <Columns>
                  <asp:BoundField DataField="身份证号码" HeaderText="用户ID" SortExpression="身份证号码" />
                  <asp:BoundField DataField="姓名" HeaderText="用户姓名" SortExpression="姓名"/>
                  <asp:TemplateField HeaderText="员工性别">
                    <ItemTemplate>
                        <asp:DropDownList ID="DropDownList1" runat="server" DataSource='<%# ddlbind()%>' DataValueField="员工性别" DataTextField="员工性别">
                        </asp:DropDownList>
                    </ItemTemplate>
                  </asp:TemplateField>
                  <asp:BoundField DataField="家庭住址" HeaderText="家庭住址" SortExpression="家庭住址"/>

                </Columns>
                <RowStyle ForeColor="#000066" />
                <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />
                <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />
                <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />
            </asp:GridView>

5.GridView和CheckBox结合：

效果图：

后台代码：

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;

public partial class Default5 : System.Web.UI.Page
{
//清清月儿http://blog.csdn.net/21aspnet
SqlConnection sqlcon;
string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";
protected void Page_Load(object sender, EventArgs e)
{
    if (!IsPostBack)
    {
        bind();
    }
}
protected void CheckBox2_CheckedChanged(object sender, EventArgs e)
{
    for (int i = 0; i <= GridView1.Rows.Count - 1; i++)
    {
        CheckBox cbox = (CheckBox)GridView1.Rows.FindControl("CheckBox1");
        if (CheckBox2.Checked == true)
        {
          cbox.Checked = true;
        }
        else
        {
          cbox.Checked = false;
        }
    }
}
protected void Button2_Click(object sender, EventArgs e)
{
    sqlcon = new SqlConnection(strCon);
    SqlCommand sqlcom;
    for (int i = 0; i <= GridView1.Rows.Count - 1; i++)
    {
        CheckBox cbox = (CheckBox)GridView1.Rows.FindControl("CheckBox1");
        if (cbox.Checked == true)
        {

          string sqlstr = "delete from 飞狐工作室 where 身份证号码='" + GridView1.DataKeys.Value + "'";
          sqlcom = new SqlCommand(sqlstr, sqlcon);
          sqlcon.Open();
          sqlcom.ExecuteNonQuery();
          sqlcon.Close();
        }
    }
    bind();
}
protected void Button1_Click(object sender, EventArgs e)
{
    CheckBox2.Checked = false;
    for (int i = 0; i <= GridView1.Rows.Count - 1; i++)
    {
        CheckBox cbox = (CheckBox)GridView1.Rows.FindControl("CheckBox1");
        cbox.Checked = false;
    }
}
public void bind()
{
    string sqlstr = "select top 5 * from 飞狐工作室";
    sqlcon = new SqlConnection(strCon);
    SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);
    DataSet myds = new DataSet();
    sqlcon.Open();
    myda.Fill(myds, "tb_Member");
    GridView1.DataSource = myds;
    GridView1.DataKeyNames = new string[] { "身份证号码" };
    GridView1.DataBind();
    sqlcon.Close();
}
}

前台主要代码：

<asp:GridView ID="GridView1" runat="server" AllowSorting="True" AutoGenerateColumns="False"
                CellPadding="3" Font-Size="9pt" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px">
                <FooterStyle BackColor="White" ForeColor="#000066" />
                <Columns>
                  <asp:TemplateField>
                    <ItemTemplate>
                        <asp:CheckBox ID="CheckBox1" runat="server" />
                    </ItemTemplate>
                  </asp:TemplateField>
                  <asp:BoundField DataField="身份证号码" HeaderText="用户ID" SortExpression="身份证号码" />
                  <asp:BoundField DataField="姓名" HeaderText="用户姓名" SortExpression="姓名"/>

                  <asp:BoundField DataField="家庭住址" HeaderText="家庭住址" SortExpression="家庭住址"/>

                </Columns>
                <RowStyle ForeColor="#000066" />
                <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />
                <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />
                <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />
            </asp:GridView>
              <asp:CheckBox ID="CheckBox2" runat="server" AutoPostBack="True" Font-Size="9pt" OnCheckedChanged="CheckBox2_CheckedChanged"
                Text="全选" />
            <asp:Button ID="Button1" runat="server" Font-Size="9pt" Text="取消" OnClick="Button1_Click" />
            <asp:Button ID="Button2" runat="server" Font-Size="9pt" Text="删除" OnClick="Button2_Click" />

6.鼠标移到GridView某一行时改变该行的背景色方法一：

效果图：

做法：
双击GridView的OnRowDataBound事件；
在后台的GridView1_RowDataBound()方法添加代码，最后代码如下所示：
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
    int i;
    //执行循环，保证每条数据都可以更新
    for (i = 0; i < GridView1.Rows.Count; i++)
    {
        //首先判断是否是数据行
        if (e.Row.RowType == DataControlRowType.DataRow)
        {
          //当鼠标停留时更改背景色
          e.Row.Attributes.Add("onmouseover", "c=this.style.backgroundColor;this.style.backgroundColor='#00A9FF'");
          //当鼠标移开时还原背景色
          e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor=c");
        }
    }

}

前台代码：
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>实现鼠标划过改变GridView的行背景色清清月儿http://blog.csdn.net/21aspnet </title>
</head>
<body>
<form id="form1" runat="server">
<div>
    <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataKeyNames="身份证号码"
        DataSourceID="SqlDataSource1" AllowSorting="True" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" CellPadding="3" Font-Size="12px" OnRowDataBound="GridView1_RowDataBound">
        <Columns>
          <asp:BoundField DataField="身份证号码" HeaderText="身份证号码" ReadOnly="True" SortExpression="身份证号码" />
          <asp:BoundField DataField="姓名" HeaderText="姓名" SortExpression="姓名" />
          <asp:BoundField DataField="家庭住址" HeaderText="家庭住址" SortExpression="家庭住址" />
          <asp:BoundField DataField="邮政编码" HeaderText="邮政编码" SortExpression="邮政编码" />
        </Columns>
        <FooterStyle BackColor="White" ForeColor="#000066" />
        <RowStyle ForeColor="#000066" />
        <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />
        <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />
        <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />
    </asp:GridView>
    <asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:北风贸易ConnectionString1 %>"
        SelectCommand="SELECT top 5 [身份证号码], [姓名], [员工性别], [家庭住址], [邮政编码] FROM [飞狐工作室]" DataSourceMode="DataReader"></asp:SqlDataSource>

</div>
</form>
</body>
</html>

7.鼠标移到GridView某一行时改变该行的背景色方法二：

效果图：

做法：和上面的一样就是代码不同
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
    //int i;
    ////执行循环，保证每条数据都可以更新
    //for (i = 0; i < GridView1.Rows.Count; i++)
    //{
    //   //首先判断是否是数据行
    //   if (e.Row.RowType == DataControlRowType.DataRow)
    //   {
    //     //当鼠标停留时更改背景色
    //     e.Row.Attributes.Add("onmouseover", "c=this.style.backgroundColor;this.style.backgroundColor='#00A9FF'");
    //     //当鼠标移开时还原背景色
    //     e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor=c");
    //   }
    //}
    //如果是绑定数据行
    if (e.Row.RowType == DataControlRowType.DataRow)
    {
        //鼠标经过时，行背景色变
        e.Row.Attributes.Add("onmouseover", "this.style.backgroundColor='#E6F5FA'");
        //鼠标移出时，行背景色变
        e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor='#FFFFFF'");
    }

}

8.GridView实现删除时弹出确认对话框：

效果图：

实现方法：
双击GridView的OnRowDataBound事件；
在后台的GridView1_RowDataBound()方法添加代码，最后代码如下所示：

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
    //如果是绑定数据行
    if (e.Row.RowType == DataControlRowType.DataRow)
    {
        if (e.Row.RowState == DataControlRowState.Normal || e.Row.RowState == DataControlRowState.Alternate)
        {
          ((LinkButton)e.Row.Cells[6].Controls[0]).Attributes.Add("onclick", "javascript:return confirm('你确认要删除：\"" + e.Row.Cells[1].Text + "\"吗?')");
        }
    }

}

9.GridView实现自动编号：

效果图：

实现方法：
双击GridView的OnRowDataBound事件；
在后台的GridView1_RowDataBound()方法添加代码，最后代码如下所示：
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
    //如果是绑定数据行 //清清月儿http://blog.csdn.net/21aspnet
    if (e.Row.RowType == DataControlRowType.DataRow)
    {
        ////鼠标经过时，行背景色变
        //e.Row.Attributes.Add("onmouseover", "this.style.backgroundColor='#E6F5FA'");
        ////鼠标移出时，行背景色变
        //e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor='#FFFFFF'");

        ////当有编辑列时，避免出错，要加的RowState判断
        //if (e.Row.RowState == DataControlRowState.Normal || e.Row.RowState == DataControlRowState.Alternate)
        //{
        //   ((LinkButton)e.Row.Cells[6].Controls[0]).Attributes.Add("onclick", "javascript:return confirm('你确认要删除：\"" + e.Row.Cells[1].Text + "\"吗?')");
        //}

    }
    if (e.Row.RowIndex != -1)
    {
        int id = e.Row.RowIndex + 1;
        e.Row.Cells[0].Text = id.ToString();
    }

}

注意这时最好把前台的第一列的表头该为“编号”，因为以前的第一列被“吃掉”了。
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="3" OnRowDeleting="GridView1_RowDeleting" OnRowEditing="GridView1_RowEditing"
                OnRowUpdating="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px" OnRowDataBound="GridView1_RowDataBound">
                <FooterStyle BackColor="White" ForeColor="#000066" />
                <Columns>
                  <asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />
                  <asp:BoundField DataField="姓名" HeaderText="用户姓名" />
                  <asp:BoundField DataField="员工性别" HeaderText="性别" />
                  <asp:BoundField DataField="家庭住址" HeaderText="家庭住址" />
                  <asp:CommandField HeaderText="选择" ShowSelectButton="True" />
                  <asp:CommandField HeaderText="编辑" ShowEditButton="True" />
                  <asp:CommandField HeaderText="删除" ShowDeleteButton="True" />
                </Columns>
                <RowStyle ForeColor="#000066" />
                <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />
                <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />
                <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />
            </asp:GridView>

10.GridView实现自定义时间货币等字符串格式：

效果图：
图1-未格式化前

图2-格式化后

解决方法：
在asp.net 2.0中，如果要在绑定列中显示比如日期格式等，如果用下面的方法是显示不了的

主要是由于htmlencode属性默认设置为true,已防止XSS攻击，安全起见而用的，所以，可以有以下两种方法解决

1、

将htmlencode设置为false即可

另外的解决方法为，使用模版列

前台代码：
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataKeyNames="身份证号码"
        DataSourceID="SqlDataSource1" AllowSorting="True" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" CellPadding="3" Font-Size="12px" OnRowDataBound="GridView1_RowDataBound">
        <Columns>
          <asp:BoundField DataField="身份证号码" HeaderText="身份证号码" ReadOnly="True" SortExpression="身份证号码" />
          <asp:BoundField DataField="姓名" HeaderText="姓名" SortExpression="姓名" />
          <asp:BoundField DataField="邮政编码" HeaderText="邮政编码" SortExpression="邮政编码" />
          <asp:BoundField DataField="出生日期" HeaderText="出生日期" SortExpression="出生日期" />
          <asp:BoundField DataField="起薪" HeaderText="起薪" SortExpression="起薪" />
        </Columns>
        <FooterStyle BackColor="White" ForeColor="#000066" />
        <RowStyle ForeColor="#000066" />
        <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />
        <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />
        <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />
    </asp:GridView>
    <asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:北风贸易ConnectionString1 %>"
        SelectCommand="SELECT top 5 [出生日期], [起薪], [身份证号码], [姓名], [家庭住址], [邮政编码] FROM [飞狐工作室]" DataSourceMode="DataReader"></asp:SqlDataSource>

附录-常用格式化公式：
{0:C} 货币；
{0:D4}由0填充的4个字符宽的字段中显示整数；
{0:000.0}四舍五入小数点保留第几位有效数字；
{0:N2}小数点保留2位有效数字；{0:N2}% 小数点保留2位有效数字加百分号；
{0:D}长日期；{0:d}短日期；{0:yy-MM-dd} 例如07-3-25；；{0:yyyy-MM-dd} 例如2007-3-25

11.GridView实现用“...”代替超长字符串：

效果图：

解决方法：数据绑定后过滤每一行即可
for (int i = 0; i <= GridView1.Rows.Count - 1; i++)
    {
        DataRowView mydrv;
        string gIntro;
        if (GridView1.PageIndex == 0)
        {
          mydrv = myds.Tables["飞狐工作室"].DefaultView;//表名
          gIntro = Convert.ToString(mydrv["家庭住址"]);//所要处理的字段
          GridView1.Rows.Cells[3].Text = SubStr(gIntro, 2);
        }
        else
        {
          mydrv = myds.Tables["飞狐工作室"].DefaultView[i + (5 * GridView1.PageIndex)];
          gIntro = Convert.ToString(mydrv["家庭住址"]);
          GridView1.Rows.Cells[3].Text = SubStr(gIntro, 2);
        }
    }

调用的方法：

public string SubStr(string sString, int nLeng)
{
    if (sString.Length <= nLeng)
    {
        return sString;
    }
    string sNewStr = sString.Substring(0, nLeng);
    sNewStr = sNewStr + "...";
    return sNewStr;
}

后台全部代码：
using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;

public partial class _Default : System.Web.UI.Page
{
SqlConnection sqlcon;
SqlCommand sqlcom;
string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";
protected void Page_Load(object sender, EventArgs e)
{
    if (!IsPostBack)
    {
        ViewState["SortOrder"] = "身份证号码";
        ViewState["OrderDire"] = "ASC";
        bind();
    }
}
protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)
{
    GridView1.EditIndex = e.NewEditIndex;
    bind();
}
protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
    string sqlstr = "delete from 飞狐工作室 where 身份证号码='" + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";
    sqlcon = new SqlConnection(strCon);
    sqlcom = new SqlCommand(sqlstr,sqlcon);
    sqlcon.Open();
    sqlcom.ExecuteNonQuery();
    sqlcon.Close();
    bind();
}
protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
    sqlcon = new SqlConnection(strCon);
    string sqlstr = "update 飞狐工作室 set 姓名='"
        + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim() + "',家庭住址='"
        + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim() + "' where 身份证号码='"
        + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";
    sqlcom=new SqlCommand(sqlstr,sqlcon);
    sqlcon.Open();
    sqlcom.ExecuteNonQuery();
    sqlcon.Close();
    GridView1.EditIndex = -1;
    bind();
}
protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
{
    GridView1.EditIndex = -1;
    bind();
}
public void bind()
{
    string sqlstr = "select top 5 * from 飞狐工作室";
    sqlcon = new SqlConnection(strCon);
    SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);
    DataSet myds = new DataSet();
    sqlcon.Open();
    myda.Fill(myds, "飞狐工作室");
    GridView1.DataSource = myds;
    GridView1.DataKeyNames = new string[] { "身份证号码" };
    GridView1.DataBind();
    for (int i = 0; i <= GridView1.Rows.Count - 1; i++)
    {
        DataRowView mydrv;
        string gIntro;
        if (GridView1.PageIndex == 0)
        {
          mydrv = myds.Tables["飞狐工作室"].DefaultView;
          gIntro = Convert.ToString(mydrv["家庭住址"]);
          GridView1.Rows.Cells[3].Text = SubStr(gIntro, 2);
        }
        else
        {
          mydrv = myds.Tables["飞狐工作室"].DefaultView[i + (5 * GridView1.PageIndex)];
          gIntro = Convert.ToString(mydrv["家庭住址"]);
          GridView1.Rows.Cells[3].Text = SubStr(gIntro, 2);
        }
    }

    sqlcon.Close();
}
public string SubStr(string sString, int nLeng)
{
    if (sString.Length <= nLeng)
    {
        return sString;
    }
    string sNewStr = sString.Substring(0, nLeng);
    sNewStr = sNewStr + "...";
    return sNewStr;
}
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
    //如果是绑定数据行
    if (e.Row.RowType == DataControlRowType.DataRow)
    {
        ////鼠标经过时，行背景色变
        //e.Row.Attributes.Add("onmouseover", "this.style.backgroundColor='#E6F5FA'");
        ////鼠标移出时，行背景色变
        //e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor='#FFFFFF'");

    }
    if (e.Row.RowIndex != -1)
    {
        int id = e.Row.RowIndex + 1;
        e.Row.Cells[0].Text = id.ToString();
    }

}
}

11.GridView一般换行与强制换行：

效果图：

首先设置<asp:BoundField DataField="家庭住址" HeaderText="家庭住址" ItemStyle-Width="100" />
gridview里有一列绑定的数据很长，显示的时候在一行里面显示，页面拉得很宽。
原因是连续英文段为一个整体导致的，在RowDataBound中添加上了一句e.Row.Cells[2].Style.Add("word-break", "break-all")就可以。

如果要给所有的列增加此属性：
protected void Page_Load(object sender, EventArgs e)
{
    //正常换行
    GridView1.Attributes.Add("style", "word-break:keep-all;word-wrap:normal");
    //下面这行是自动换行
    GridView1.Attributes.Add("style", "word-break:break-all;word-wrap:break-word");
    if (!IsPostBack)
    {
        bind();//调用数据绑定即可
    }
}
总之：善用CSS的word-break:break-all;word-wrap:break-word属性即可，这个属性是通用的对于顽固的南换行问题都可以解决，不局限于GridView。

12.GridView显示隐藏某一列：
本方案为月儿独创，不同于网上其他方式，我觉得用一个CheckBox更人性化，这样可以隐藏不必要的列，让用户自己选择需要出现的列，在处理多列时这是一个很好的解决方案！

效果图：
图1-开始

图2-点击显示的CheckBox后

解决方案：
public void bind()
{
    string sqlstr = "select top 5 * from 飞狐工作室";
    sqlcon = new SqlConnection(strCon);
    SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);
    DataSet myds = new DataSet();
    sqlcon.Open();
    myda.Fill(myds, "飞狐工作室");
    GridView1.DataSource = myds;
    GridView1.DataKeyNames = new string[] { "身份证号码" };
    GridView1.DataBind();
    sqlcon.Close();
    GridView1.Columns[3].Visible = false;//一开始隐藏
    CheckBox1.Checked = false;//如果不这样后面的代码会把他True
}

双击CheckBox1，在CheckedChanged方法里写上代码，最后代码如下：
protected void CheckBox1_CheckedChanged(object sender, EventArgs e)
{
GridView1.Columns[3].Visible=! GridView1.Columns[3].Visible;
Response.Write("GridView1的第4列现在的显示隐藏状态是："+GridView1.Columns[3].Visible.ToString());
}

注意：CheckBox1的AutoPostBack要True！

后台全部代码如下：

public partial class _Default : System.Web.UI.Page
{
SqlConnection sqlcon;
SqlCommand sqlcom;
string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";
protected void Page_Load(object sender, EventArgs e)
{
    if (!IsPostBack)
    {
        ViewState["SortOrder"] = "身份证号码";
        ViewState["OrderDire"] = "ASC";
        bind();
            }
}
protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)
{
    GridView1.EditIndex = e.NewEditIndex;
    bind();
}
protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
    string sqlstr = "delete from 飞狐工作室 where 身份证号码='" + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";
    sqlcon = new SqlConnection(strCon);
    sqlcom = new SqlCommand(sqlstr,sqlcon);
    sqlcon.Open();
    sqlcom.ExecuteNonQuery();
    sqlcon.Close();
    bind();
}
protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
    sqlcon = new SqlConnection(strCon);
    string sqlstr = "update 飞狐工作室 set 姓名='"
        + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim() + "',家庭住址='"
        + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim() + "' where 身份证号码='"
        + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";
    sqlcom=new SqlCommand(sqlstr,sqlcon);
    sqlcon.Open();
    sqlcom.ExecuteNonQuery();
    sqlcon.Close();
    GridView1.EditIndex = -1;
    bind();
}
protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
{
    GridView1.EditIndex = -1;
    bind();
}
public void bind()
{
    string sqlstr = "select top 5 * from 飞狐工作室";
    sqlcon = new SqlConnection(strCon);
    SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);
    DataSet myds = new DataSet();
    sqlcon.Open();
    myda.Fill(myds, "飞狐工作室");
    GridView1.DataSource = myds;
    GridView1.DataKeyNames = new string[] { "身份证号码" };
    GridView1.DataBind();
    sqlcon.Close();
    GridView1.Columns[3].Visible = false;
    CheckBox1.Checked = false;
}
protected void CheckBox1_CheckedChanged(object sender, EventArgs e)
{
      GridView1.Columns[3].Visible=! GridView1.Columns[3].Visible;
      Response.Write("GridView1的第4列现在的显示隐藏状态是："+GridView1.Columns[3].Visible.ToString());
}
}

前台代码：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>GridView显示隐藏列清清月儿http://blog.csdn.net/21aspnet </title>
</head>
<body style="font-size=12px">
<form id="form1" runat="server">
<div>
            <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="3" OnRowDeleting="GridView1_RowDeleting" OnRowEditing="GridView1_RowEditing"
                OnRowUpdating="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px" >
                <FooterStyle BackColor="White" ForeColor="#000066" />
                <Columns>
                  <asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />
                  <asp:BoundField DataField="姓名" HeaderText="用户姓名" />
                  <asp:BoundField DataField="邮政编码" HeaderText="邮政编码" SortExpression="邮政编码" />
                  <asp:BoundField DataField="家庭住址" HeaderText="家庭住址" />
                  <asp:CommandField HeaderText="选择" ShowSelectButton="True" />
                  <asp:CommandField HeaderText="编辑" ShowEditButton="True" />
                  <asp:CommandField HeaderText="删除" ShowDeleteButton="True" />
                </Columns>
                <RowStyle ForeColor="#000066" />
                <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />
                <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />
                <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />
            </asp:GridView>
    <asp:CheckBox ID="CheckBox1" runat="server" AutoPostBack="True" Font-Size="12px"
        OnCheckedChanged="CheckBox1_CheckedChanged" Text="显示隐藏家庭住址" /></div>
</form>
</body>
</html>

13.GridView弹出新页面/弹出制定大小位置新窗口：

效果图：

方案一：简单的方法，新窗口不固定大小
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="3" OnRowDeleting="GridView1_RowDeleting" OnRowEditing="GridView1_RowEditing"
                OnRowUpdating="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px" >
                <FooterStyle BackColor="White" ForeColor="#000066" />
                <Columns>
                  <asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />
                  <asp:BoundField DataField="邮政编码" HeaderText="邮政编码" SortExpression="邮政编码" />
                  <asp:BoundField DataField="家庭住址" HeaderText="家庭住址" />
                  <asp:HyperLinkField HeaderText="姓名" Text="姓名" DataNavigateUrlFields="姓名" DataNavigateUrlFormatString="Default6.aspx?GoodsID={0}" Target="mainframe" NavigateUrl="~/Default6.aspx" DataTextField="姓名" >
            </asp:HyperLinkField>
                  <asp:CommandField HeaderText="选择" ShowSelectButton="True" />
                  <asp:CommandField HeaderText="编辑" ShowEditButton="True" />
                  <asp:CommandField HeaderText="删除" ShowDeleteButton="True" />
                </Columns>
                <RowStyle ForeColor="#000066" />
                <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />
                <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />
                <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />
            </asp:GridView>
DataNavigateUrlFields是链接的字段名，DataNavigateUrlFormatString是路径。

方案二：精确控制弹出窗口大小位置
<asp:HyperLinkColumn DataNavigateUrlField="EmployeeID" DataNavigateUrlFormatString="javascript:varwin=window.open('detail.aspx?ID={0}',null,'width=300,height=200');window.Close();"
DataTextField="LastName" HeaderText="LastName"></asp:HyperLinkColumn>

使用的是结合javascript的window.open方法，关于window.open的参数网上有很多帖子，本站也有许多参考
弹出窗口大全 http://blog.csdn.net/21aspnet/archive/2004/10/25/150231.aspx 即可！

14.GridView固定表头(不用javascript只用CSS!，很好用)：

效果图：

代码：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>GridView固定表头清清月儿http://blog.csdn.net/21aspnet </title>
<style>
.Freezing
{

position:relative ;
table-layout:fixed;
top:expression(this.offsetParent.scrollTop);
z-index: 10;
}

.Freezing th{text-overflow:ellipsis;overflow:hidden;white-space: nowrap;padding:2px;}
</style>
</head>
<body style="font-size=12px">
<form id="form1" runat="server">
<div style="overflow-y: scroll; height: 200px;width:300px" id="dvBody">
            <asp:GridView ID="GridView1" runat="server"   AutoGenerateColumns="False" CellPadding="3" OnRowDeleting="GridView1_RowDeleting" OnRowEditing="GridView1_RowEditing"
                OnRowUpdating="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px" OnRowCreated="GridView1_RowCreated" >
                <FooterStyle BackColor="White" ForeColor="#000066" />
                <Columns>
                  <asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />
                  <asp:BoundField DataField="邮政编码" HeaderText="邮政编码" SortExpression="邮政编码" />
                  <asp:BoundField DataField="家庭住址" HeaderText="家庭住址" />
                  <asp:BoundField DataField="姓名" HeaderText="姓名" />

                </Columns>
                <RowStyle ForeColor="#000066" />
                <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />
                <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" CssClass="ms-formlabel DataGridFixedHeader"/>
                <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" CssClass="Freezing"/>
            </asp:GridView>
    </div>

</form>
</body>
</html>

用法：CSS设如上的样式，HeaderStyle加CssClass="Freezing，套住GridView的Div设置高度宽度 <div style="overflow-y: scroll; height: 200px;width:200px" >

15.GridView合并表头多重表头无错完美版（以合并3列3行举例）

效果图：

后台代码：
using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;
using System.Drawing;
public partial class _Default : System.Web.UI.Page
{
SqlConnection sqlcon;
SqlCommand sqlcom;
string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";
protected void Page_Load(object sender, EventArgs e)
{
    if (!IsPostBack)
    {
        bind();

    }
}
protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)
{
    GridView1.EditIndex = e.NewEditIndex;
    bind();
}
protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
    sqlcon = new SqlConnection(strCon);
    string sqlstr = "update 飞狐工作室 set 姓名='"
        + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim() + "',家庭住址='"
        + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim() + "' where 身份证号码='"
        + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";
    sqlcom=new SqlCommand(sqlstr,sqlcon);
    sqlcon.Open();
    sqlcom.ExecuteNonQuery();
    sqlcon.Close();
    GridView1.EditIndex = -1;
    bind();
}
protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
{
    GridView1.EditIndex = -1;
    bind();
}
public void bind()
{
    string sqlstr = "select top 10 * from 飞狐工作室";
    sqlcon = new SqlConnection(strCon);
    SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);
    DataSet myds = new DataSet();
    sqlcon.Open();
    myda.Fill(myds, "飞狐工作室");
    GridView1.DataSource = myds;
    GridView1.DataKeyNames = new string[] { "身份证号码" };
    GridView1.DataBind();
    sqlcon.Close();
}

//这里就是解决方案
protected void GridView1_RowCreated(object sender, GridViewRowEventArgs e)
{
    switch (e.Row.RowType)
    {
        case DataControlRowType.Header:
          //第一行表头
          TableCellCollection tcHeader = e.Row.Cells;
          tcHeader.Clear();
          tcHeader.Add(new TableHeaderCell());
          tcHeader[0].Attributes.Add("rowspan", "3"); //跨Row
          tcHeader[0].Attributes.Add("bgcolor", "white");
          tcHeader[0].Text = "";
          tcHeader.Add(new TableHeaderCell());
          //tcHeader[1].Attributes.Add("bgcolor", "Red");
          tcHeader[1].Attributes.Add("colspan", "6"); //跨Column
          tcHeader[1].Text = "全部信息</th></tr><tr>";

          //第二行表头
          tcHeader.Add(new TableHeaderCell());
          tcHeader[2].Attributes.Add("bgcolor", "DarkSeaGreen");
          tcHeader[2].Text = "身份证号码";
          tcHeader.Add(new TableHeaderCell());
          tcHeader[3].Attributes.Add("bgcolor", "LightSteelBlue");
          tcHeader[3].Attributes.Add("colspan", "2");
          tcHeader[3].Text = "基本信息";
          tcHeader.Add(new TableHeaderCell());
          tcHeader[4].Attributes.Add("bgcolor", "DarkSeaGreen");
          tcHeader[4].Text = "福利";
          tcHeader.Add(new TableHeaderCell());
          tcHeader[5].Attributes.Add("bgcolor", "LightSteelBlue");
          tcHeader[5].Attributes.Add("colspan", "2");
          tcHeader[5].Text = "联系方式</th></tr><tr>";

          //第三行表头
          tcHeader.Add(new TableHeaderCell());
          tcHeader[6].Attributes.Add("bgcolor", "Khaki");
          tcHeader[6].Text = "身份证号码";
          tcHeader.Add(new TableHeaderCell());
          tcHeader[7].Attributes.Add("bgcolor", "Khaki");
          tcHeader[7].Text = "姓名";
          tcHeader.Add(new TableHeaderCell());
          tcHeader[8].Attributes.Add("bgcolor", "Khaki");
          tcHeader[8].Text = "出生日期";
          tcHeader.Add(new TableHeaderCell());
          tcHeader[9].Attributes.Add("bgcolor", "Khaki");
          tcHeader[9].Text = "薪水";
          tcHeader.Add(new TableHeaderCell());
          tcHeader[10].Attributes.Add("bgcolor", "Khaki");
          tcHeader[10].Text = "家庭住址";
          tcHeader.Add(new TableHeaderCell());
          tcHeader[11].Attributes.Add("bgcolor", "Khaki");
          tcHeader[11].Text = "邮政编码";
          break;
    }
}
}

前台：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>GridView合并多重表头表头清清月儿http://blog.csdn.net/21aspnet </title>
</head>
<body >
<form id="form1" runat="server">
<div >
            <asp:GridView ID="GridView1" runat="server"   AutoGenerateColumns="False" CellPadding="3" OnRowEditing="GridView1_RowEditing"
                OnRowUpdating="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px" OnRowCreated="GridView1_RowCreated" >
                <FooterStyle BackColor="White" ForeColor="#000066" />
                <Columns>
                  <asp:CommandField HeaderText="编辑" ShowEditButton="True" />
                  <asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />
                  <asp:BoundField DataField="姓名" HeaderText="姓名" />
                  <asp:BoundField DataField="出生日期" HeaderText="邮政编码" />
                  <asp:BoundField DataField="起薪" HeaderText="起薪" />
                  <asp:BoundField DataField="家庭住址" HeaderText="家庭住址" />
                  <asp:BoundField DataField="邮政编码" HeaderText="邮政编码" />

                </Columns>
                <RowStyle ForeColor="#000066" />
                <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />
                <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" CssClass="ms-formlabel DataGridFixedHeader"/>
                <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />
            </asp:GridView>
    </div>

</form>
</body>
</html>

16.GridView突出显示某一单元格（例如金额低于多少，分数不及格等）

效果图：

解决方案：主要是绑定后过滤
GridView1.DataBind();
    for (int i = 0; i <= GridView1.Rows.Count - 1; i++)
    {
        DataRowView mydrv = myds.Tables["飞狐工作室"].DefaultView;
        string score = Convert.ToString(mydrv["起薪"]);
        if (Convert.ToDouble(score) < 34297.00)//大家这里根据具体情况设置可能ToInt32等等
        {
          GridView1.Rows.Cells[4].BackColor = System.Drawing.Color.Red;
        }
    }
    sqlcon.Close();

全部后台代码：

public partial class Default7 : System.Web.UI.Page
{
SqlConnection sqlcon;
SqlCommand sqlcom;
string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";
protected void Page_Load(object sender, EventArgs e)
{
    if (!IsPostBack)
    {
        bind();

        {
          GridView1.Rows.Cells[4].BackColor = System.Drawing.Color.Red;
        }
    }
    sqlcon.Close();
}
}

前台代码：

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
<title>GridView突出显示某一单元格清清月儿http://blog.csdn.net/21aspnet </title>
</head>
<body >
<form id="form1" runat="server">
<div >
            <asp:GridView ID="GridView1" runat="server"   AutoGenerateColumns="False" CellPadding="3" OnRowEditing="GridView1_RowEditing"
                OnRowUpdating="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px" >
                <FooterStyle BackColor="White" ForeColor="#000066" />
                <Columns>
                  <asp:CommandField HeaderText="编辑" ShowEditButton="True" />
                  <asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />
                  <asp:BoundField DataField="姓名" HeaderText="姓名" />
                  <asp:BoundField DataField="出生日期" HeaderText="邮政编码" />
                  <asp:BoundField DataField="起薪" HeaderText="起薪" DataFormatString="{0:C}" HtmlEncode="false"/>
                  <asp:BoundField DataField="家庭住址" HeaderText="家庭住址" />
                  <asp:BoundField DataField="邮政编码" HeaderText="邮政编码" />

                </Columns>
                <RowStyle ForeColor="#000066" />
                <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />
                <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" CssClass="ms-formlabel DataGridFixedHeader"/>
                <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />
            </asp:GridView>
    </div>

</form>
</body>
</html>

17.GridView加入自动求和求平均值小计

效果图：
解决方案：
private double sum = 0;//取指定列的数据和，你要根据具体情况对待可能你要处理的是int
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{

    if (e.Row.RowIndex >= 0)
    {
        sum += Convert.ToDouble(e.Row.Cells[6].Text);
    }
    else if (e.Row.RowType == DataControlRowType.Footer)
    {
        e.Row.Cells[5].Text = "总薪水为：";
        e.Row.Cells[6].Text = sum.ToString();
        e.Row.Cells[3].Text = "平均薪水为：";
        e.Row.Cells[4].Text = ((int)(sum / GridView1.Rows.Count)).ToString();

    }
}

    }
}
protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)
{
    GridView1.EditIndex = e.NewEditIndex;
    bind();
}
protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
    sqlcon = new SqlConnection(strCon);
    string sqlstr = "update 飞狐工作室 set 姓名='"
        + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim() + "',家庭住址='"
        + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim() + "' where 身份证号码='"
        + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";
    sqlcom = new SqlCommand(sqlstr, sqlcon);
    sqlcon.Open();
    sqlcom.ExecuteNonQuery();
    sqlcon.Close();
    GridView1.EditIndex = -1;
    bind();
}
protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
{
    GridView1.EditIndex = -1;
    bind();
}
public void bind()
{
    string sqlstr = "select top 5 * from 飞狐工作室";
    sqlcon = new SqlConnection(strCon);
    SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);
    DataSet myds = new DataSet();
    sqlcon.Open();
    myda.Fill(myds, "飞狐工作室");
    GridView1.DataSource = myds;
    GridView1.DataKeyNames = new string[] { "身份证号码" };
    GridView1.DataBind();
    sqlcon.Close();
}
private double sum = 0;//取指定列的数据和
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{

    if (e.Row.RowIndex >= 0)
    {
        sum += Convert.ToDouble(e.Row.Cells[6].Text);
    }
    else if (e.Row.RowType == DataControlRowType.Footer)
    {
        e.Row.Cells[5].Text = "总薪水为：";
        e.Row.Cells[6].Text = sum.ToString();
        e.Row.Cells[3].Text = "平均薪水为：";
        e.Row.Cells[4].Text = ((int)(sum / GridView1.Rows.Count)).ToString();

    }
}
}
前台：唯一的花头就是设置ShowFooter="True" ，否则默认表头为隐藏的！
<asp:GridView ID="GridView1" runat="server"   AutoGenerateColumns="False" CellPadding="3" OnRowEditing="GridView1_RowEditing"
                OnRowUpdating="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px" OnRowDataBound="GridView1_RowDataBound" ShowFooter="True" >
                <FooterStyle BackColor="White" ForeColor="#000066" />
                <Columns>
                  <asp:CommandField HeaderText="编辑" ShowEditButton="True" />
                  <asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />
                  <asp:BoundField DataField="姓名" HeaderText="姓名" />
                  <asp:BoundField DataField="出生日期" HeaderText="邮政编码" />
                  <asp:BoundField DataField="家庭住址" HeaderText="家庭住址" />
                  <asp:BoundField DataField="邮政编码" HeaderText="邮政编码" />
                  <asp:BoundField DataField="起薪" HeaderText="起薪" />

                </Columns>
                <RowStyle ForeColor="#000066" />
                <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />
                <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" CssClass="ms-formlabel DataGridFixedHeader"/>
                <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />
            </asp:GridView>

18.GridView数据导入Excel/Excel数据读入GridView

效果图：

解决方案：
页面增加一个按钮，单击事件添加如下方法：
protected void Button1_Click(object sender, EventArgs e)
{
Export("application/ms-excel", "学生成绩报表.xls");
}

private void Export(string FileType, string FileName)
{
    Response.Charset = "GB2312";
    Response.ContentEncoding = System.Text.Encoding.UTF7;
    Response.AppendHeader("Content-Disposition", "attachment;filename=" + HttpUtility.UrlEncode(FileName, Encoding.UTF8).ToString());
    Response.ContentType = FileType;
    this.EnableViewState = false;
    StringWriter tw = new StringWriter();
    HtmlTextWriter hw = new HtmlTextWriter(tw);
    GridView1.RenderControl(hw);
    Response.Write(tw.ToString());
    Response.End();
}
//如果没有下面方法会报错类型“GridView”的控件“GridView1”必须放在具有 runat=server 的窗体标记内
public override void VerifyRenderingInServerForm(Control control)
{
}
还有由于是文件操作所以要引入名称空间IO和Text

    }
}

public void bind()
{
    string sqlstr = "select top 5 * from 飞狐工作室";
    sqlcon = new SqlConnection(strCon);
    SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);
    DataSet myds = new DataSet();
    sqlcon.Open();
    myda.Fill(myds, "飞狐工作室");
    GridView1.DataSource = myds;
    GridView1.DataKeyNames = new string[] { "身份证号码" };
    GridView1.DataBind();
    sqlcon.Close();
}

protected void Button1_Click(object sender, EventArgs e)
{
Export("application/ms-excel", "学生成绩报表.xls");
}

private void Export(string FileType, string FileName)
{
    Response.Charset = "GB2312";
    Response.ContentEncoding = System.Text.Encoding.UTF7;
    Response.AppendHeader("Content-Disposition", "attachment;filename=" + HttpUtility.UrlEncode(FileName, Encoding.UTF8).ToString());
    Response.ContentType = FileType;
    this.EnableViewState = false;
    StringWriter tw = new StringWriter();
    HtmlTextWriter hw = new HtmlTextWriter(tw);
    GridView1.RenderControl(hw);
    Response.Write(tw.ToString());
    Response.End();
}
public override void VerifyRenderingInServerForm(Control control)
{
}

}

前台：
<asp:GridView ID="GridView1" runat="server"   AutoGenerateColumns="False" CellPadding="3"
                BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px"   >
                <FooterStyle BackColor="White" ForeColor="#000066" />
                <Columns>
                  <asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />
                  <asp:BoundField DataField="姓名" HeaderText="姓名" />
                  <asp:BoundField DataField="出生日期" HeaderText="邮政编码" />
                  <asp:BoundField DataField="家庭住址" HeaderText="家庭住址" />
                  <asp:BoundField DataField="邮政编码" HeaderText="邮政编码" />
                  <asp:BoundField DataField="起薪" HeaderText="起薪" />

                </Columns>
                <RowStyle ForeColor="#000066" />
                <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />
                <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" CssClass="ms-formlabel DataGridFixedHeader"/>
                <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />
            </asp:GridView>
    <asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="导出" />

读取Excel数据的代码：这个很简单的
private DataSet CreateDataSource()
{
    string strCon;
    strCon = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + Server.MapPath("excel.xls") + "; Extended Properties=Excel 8.0;";
    OleDbConnection olecon = new OleDbConnection(strCon);
    OleDbDataAdapter myda = new OleDbDataAdapter("SELECT * FROM [Sheet1$]", strCon);
    DataSet myds = new DataSet();
    myda.Fill(myds);
    return myds;
}
protected void Button1_Click(object sender, EventArgs e)
{
    GridView1.DataSource = CreateDataSource();
    GridView1.DataBind();
}

刷新页面返回顶部

成为自己比什么都重要！

GridView的一些技巧~