GridView 72般绝技(一)
本期内容:
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选中,编辑,取消,删除
GridView正反双向排序
GridView和下拉菜单DropDownList结合
1.GridView无代码分页排序:
效果图:
![](http://www.vs2005.com/DownloadPictures/200708/2007080908241456.gif)
![](http://www.vs2005.com/DownloadPictures/200708/2007080908241456.gif)
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:
![](http://www.vs2005.com/DownloadPictures/200708/20070809082415144.gif)
![](http://www.vs2005.com/DownloadPictures/200708/20070809082415144.gif)
后台代码:
你可以使用sqlhelper,本文没用。代码如下:
你可以使用sqlhelper,本文没用。代码如下:
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using System;
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using System.Data;
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using System.Configuration;
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using System.Web;
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using System.Web.Security;
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using System.Web.UI;
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using System.Web.UI.WebControls;
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using System.Web.UI.WebControls.WebParts;
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using System.Web.UI.HtmlControls;
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using System.Data.SqlClient;
11![](http://www.vs2005.com/Images/OutliningIndicators/None.gif)
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public partial class _Default : System.Web.UI.Page
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{
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//清清月儿http://blog.csdn.net/21aspnet
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SqlConnection sqlcon;
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SqlCommand sqlcom;
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string strCon = "Data Source=(local);Database=数据库名;Uid=帐号;Pwd=密码";
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protected void Page_Load(object sender, EventArgs e)
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{
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if (!IsPostBack)
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{
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bind();
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}
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}
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protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)
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{
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GridView1.EditIndex = e.NewEditIndex;
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bind();
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}
30![](http://www.vs2005.com/Images/OutliningIndicators/InBlock.gif)
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//删除
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protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
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{
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string sqlstr = "delete from 表 where id='" + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";
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sqlcon = new SqlConnection(strCon);
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sqlcom = new SqlCommand(sqlstr,sqlcon);
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sqlcon.Open();
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sqlcom.ExecuteNonQuery();
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sqlcon.Close();
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bind();
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}
42![](http://www.vs2005.com/Images/OutliningIndicators/InBlock.gif)
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//更新
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protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
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{
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sqlcon = new SqlConnection(strCon);
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string sqlstr = "update 表 set 字段1='"
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+ ((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim() + "',字段2='"
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+ ((TextBox)(GridView1.Rows[e.RowIndex].Cells[2].Controls[0])).Text.ToString().Trim() + "',字段3='"
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+ ((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim() + "' where id='"
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+ GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";
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sqlcom=new SqlCommand(sqlstr,sqlcon);
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sqlcon.Open();
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sqlcom.ExecuteNonQuery();
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sqlcon.Close();
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GridView1.EditIndex = -1;
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bind();
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}
59![](http://www.vs2005.com/Images/OutliningIndicators/InBlock.gif)
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//取消
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protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
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{
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GridView1.EditIndex = -1;
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bind();
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}
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//绑定
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public void bind()
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{
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string sqlstr = "select * from 表";
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sqlcon = new SqlConnection(strCon);
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SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);
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DataSet myds = new DataSet();
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sqlcon.Open();
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myda.Fill(myds, "表");
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GridView1.DataSource = myds;
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GridView1.DataKeyNames = new string[] { "id" };//主键
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GridView1.DataBind();
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sqlcon.Close();
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}
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}
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前台主要代码:
1
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="4"
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ForeColor="#333333" GridLines="None" OnRowDeleting="GridView1_RowDeleting" OnRowEditing="GridView1_RowEditing"
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OnRowUpdating="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit">
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<FooterStyle BackColor="#990000" Font-Bold="True" ForeColor="White" />
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<Columns>
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<asp:BoundField DataField="身份证号码" HeaderText="用户ID" ReadOnly="True" />
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<asp:BoundField DataField="姓名" HeaderText="用户姓名" />
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<asp:BoundField DataField="员工性别" HeaderText="性别" />
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<asp:BoundField DataField="家庭住址" HeaderText="家庭住址" />
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<asp:CommandField HeaderText="选择" ShowSelectButton="True" />
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<asp:CommandField HeaderText="编辑" ShowEditButton="True" />
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<asp:CommandField HeaderText="删除" ShowDeleteButton="True" />
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</Columns>
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<RowStyle ForeColor="#000066" />
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<SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />
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<PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />
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<HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />
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</asp:GridView>
19![](http://www.vs2005.com/Images/OutliningIndicators/None.gif)
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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。
效果图:点姓名各2次的排序,点其他也一样可以。
![](http://www.vs2005.com/DownloadPictures/200708/2007080908241530.gif)
![](http://www.vs2005.com/DownloadPictures/200708/2007080908241564.gif)
后台代码:
1
using System;
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using System.Data;
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using System.Configuration;
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using System.Collections;
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using System.Web;
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using System.Web.Security;
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using System.Web.UI;
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using System.Web.UI.WebControls;
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using System.Web.UI.WebControls.WebParts;
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using System.Web.UI.HtmlControls;
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using System.Data.SqlClient;
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public partial class Default3 : System.Web.UI.Page
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{
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//清清月儿的博客http://blog.csdn.net/21aspnet
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SqlConnection sqlcon;
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string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=";
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protected void Page_Load(object sender, EventArgs e)
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{
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if (!IsPostBack)
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{
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ViewState["SortOrder"] = "身份证号码";
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ViewState["OrderDire"] = "ASC";
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bind();
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}
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}
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protected void GridView1_Sorting(object sender, GridViewSortEventArgs e)
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{
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string sPage = e.SortExpression;
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if (ViewState["SortOrder"].ToString() == sPage)
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{
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if (ViewState["OrderDire"].ToString() == "Desc")
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ViewState["OrderDire"] = "ASC";
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else
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ViewState["OrderDire"] = "Desc";
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}
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else
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{
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ViewState["SortOrder"] = e.SortExpression;
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}
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bind();
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}
42![](http://www.vs2005.com/Images/OutliningIndicators/InBlock.gif)
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public void bind()
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{
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string sqlstr = "select top 5 * from 飞狐工作室";
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sqlcon = new SqlConnection(strCon);
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SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);
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DataSet myds = new DataSet();
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sqlcon.Open();
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myda.Fill(myds, "飞狐工作室");
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DataView view = myds.Tables["飞狐工作室"].DefaultView;
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string sort = (string)ViewState["SortOrder"] + " " + (string)ViewState["OrderDire"];
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view.Sort = sort;
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GridView1.DataSource = view;
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GridView1.DataBind();
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sqlcon.Close();
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}
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}
60![](http://www.vs2005.com/Images/OutliningIndicators/None.gif)
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前台主要代码:
1
<asp:GridView ID="GridView1" runat="server" AllowSorting="True" AutoGenerateColumns="False"
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CellPadding="3" Font-Size="9pt" OnSorting="GridView1_Sorting" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px">
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<FooterStyle BackColor="White" ForeColor="#000066" />
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<Columns>
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<asp:BoundField DataField="身份证号码" HeaderText="用户ID" SortExpression="身份证号码" />
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<asp:BoundField DataField="姓名" HeaderText="用户姓名" SortExpression="姓名"/>
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<asp:BoundField DataField="员工性别" HeaderText="性别" SortExpression="员工性别"/>
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<asp:BoundField DataField="家庭住址" HeaderText="家庭住址" SortExpression="家庭住址"/>
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</Columns>
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<RowStyle ForeColor="#000066" />
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<SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />
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<PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />
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<HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />
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</asp:GridView>
16![](http://www.vs2005.com/Images/OutliningIndicators/None.gif)
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4.GridView和下拉菜单DropDownList结合:
效果图:
![](http://www.vs2005.com/DownloadPictures/200708/2007080908241555.gif)
后台代码:
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using System;
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using System.Data;
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using System.Configuration;
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using System.Collections;
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using System.Web;
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using System.Web.Security;
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using System.Web.UI;
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using System.Web.UI.WebControls;
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using System.Web.UI.WebControls.WebParts;
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using System.Web.UI.HtmlControls;
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using System.Data.SqlClient;
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public partial class Default4 : System.Web.UI.Page
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{
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SqlConnection sqlcon;
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string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";
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protected void Page_Load(object sender, EventArgs e)
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{
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DropDownList ddl;
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if (!IsPostBack)
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{
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string sqlstr = "select top 5 * from 飞狐工作室";
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sqlcon = new SqlConnection(strCon);
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SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);
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DataSet myds = new DataSet();
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sqlcon.Open();
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myda.Fill(myds, "飞狐工作室");
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GridView1.DataSource = myds;
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GridView1.DataBind();
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for (int i = 0; i <= GridView1.Rows.Count - 1; i++)
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{
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DataRowView mydrv = myds.Tables["飞狐工作室"].DefaultView[i];
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if (Convert.ToString(mydrv["员工性别"]).Trim() == "True")
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{
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ddl = (DropDownList)GridView1.Rows[i].FindControl("DropDownList1");
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ddl.SelectedIndex = 0;
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}
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if (Convert.ToString(mydrv["员工性别"]).Trim() == "False")
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{
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ddl = (DropDownList)GridView1.Rows[i].FindControl("DropDownList1");
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ddl.SelectedIndex = 1;
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}
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}
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sqlcon.Close();
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}
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}
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public SqlDataReader ddlbind()
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{
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string sqlstr = "select distinct 员工性别 from 飞狐工作室";
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sqlcon = new SqlConnection(strCon);
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SqlCommand sqlcom = new SqlCommand(sqlstr, sqlcon);
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sqlcon.Open();
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return sqlcom.ExecuteReader();
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}
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}
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前台主要代码:
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<asp:GridView ID="GridView1" runat="server" AllowSorting="True" AutoGenerateColumns="False"
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CellPadding="3" Font-Size="9pt" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px">
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<FooterStyle BackColor="White" ForeColor="#000066" />
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<Columns>
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<asp:BoundField DataField="身份证号码" HeaderText="用户ID" SortExpression="身份证号码" />
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<asp:BoundField DataField="姓名" HeaderText="用户姓名" SortExpression="姓名"/>
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<asp:TemplateField HeaderText="员工性别">
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<ItemTemplate>
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<asp:DropDownList ID="DropDownList1" runat="server" DataSource='<%# ddlbind()%>' DataValueField="员工性别" DataTextField="员工性别">
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</asp:DropDownList>
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</ItemTemplate>
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</asp:TemplateField>
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<asp:BoundField DataField="家庭住址" HeaderText="家庭住址" SortExpression="家庭住址"/>
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</Columns>
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<RowStyle ForeColor="#000066" />
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<SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />
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<PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />
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<HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />
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</asp:GridView>
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