菜鸟级分页用户控件
新项目开始了,先前总结了以前做项目的缺点,问题特别突出的是关于GridView控件分页的问题,想了很久,几乎每个页面都要用到GridView控件,而且按照原来的拖放式修改起来很麻烦,所以开始菜鸟分页用户控件的制作。
采用的方法肯定是存储过程分页了,自己SQL又学得差,只会那几条,写不出来那么好的,所以在网上找了一个认为比较好的,看看下面的代码:
Code
好了,研究了下上面的SQL代码,所在VS2005里面做一个分页用户控件,就是专门对上面的那个存储过程的,原理基本上是通过用户控件来控制显示的条数和页码,应该是吧?看看下面的代码。
前台:
<%@ Control Language="C#" AutoEventWireup="true" CodeFile="PageControl.ascx.cs" Inherits="Page" %>
<table width="">
<tr>
<td>第<asp:Label ID="labdang" runat="server" Text="1"></asp:Label>页/共<asp:Label ID="labgong" runat="server" Text=""></asp:Label>页</td>
<td><asp:LinkButton ID="lkbfirst" runat="server" OnClick="lkbfirst_Click">第一页</asp:LinkButton></td>
<td><asp:LinkButton ID="lkblast" runat="server" OnClick="lkblast_Click">上一页</asp:LinkButton></td>
<td><asp:LinkButton ID="lkbnext" runat="server" OnClick="lkbnext_Click">下一页</asp:LinkButton></td>
<td><asp:LinkButton ID="lkbback" runat="server" OnClick="lkbback_Click">最后页</asp:LinkButton></td>
<td>跳转<asp:TextBox ID="tbxgo" runat="server" Width="30px">1</asp:TextBox></td>
<td><asp:Button ID="btngo" runat="server" Text="跳转" Width ="60px" OnClick="btngo_Click" /></td>
<td>
每页显示
<asp:DropDownList ID="drpcount" runat="server" AutoPostBack="True" OnSelectedIndexChanged="drpcount_SelectedIndexChanged">
<asp:ListItem>10</asp:ListItem>
<asp:ListItem>15</asp:ListItem>
<asp:ListItem>20</asp:ListItem>
<asp:ListItem>50</asp:ListItem>
<asp:ListItem>100</asp:ListItem>
</asp:DropDownList>条
</td>
</tr>
</table>
<table width="">
<tr>
<td>第<asp:Label ID="labdang" runat="server" Text="1"></asp:Label>页/共<asp:Label ID="labgong" runat="server" Text=""></asp:Label>页</td>
<td><asp:LinkButton ID="lkbfirst" runat="server" OnClick="lkbfirst_Click">第一页</asp:LinkButton></td>
<td><asp:LinkButton ID="lkblast" runat="server" OnClick="lkblast_Click">上一页</asp:LinkButton></td>
<td><asp:LinkButton ID="lkbnext" runat="server" OnClick="lkbnext_Click">下一页</asp:LinkButton></td>
<td><asp:LinkButton ID="lkbback" runat="server" OnClick="lkbback_Click">最后页</asp:LinkButton></td>
<td>跳转<asp:TextBox ID="tbxgo" runat="server" Width="30px">1</asp:TextBox></td>
<td><asp:Button ID="btngo" runat="server" Text="跳转" Width ="60px" OnClick="btngo_Click" /></td>
<td>
每页显示
<asp:DropDownList ID="drpcount" runat="server" AutoPostBack="True" OnSelectedIndexChanged="drpcount_SelectedIndexChanged">
<asp:ListItem>10</asp:ListItem>
<asp:ListItem>15</asp:ListItem>
<asp:ListItem>20</asp:ListItem>
<asp:ListItem>50</asp:ListItem>
<asp:ListItem>100</asp:ListItem>
</asp:DropDownList>条
</td>
</tr>
</table>
后台:
using System;
using System.Data;
using System.Data.SqlClient;
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;
public partial class Page : System.Web.UI.UserControl
{
#region 定义变量
//第几页
private int ofcount = 1;
//共几页
private int pagecounts;
//跳转到几页
private int gocount;
//显示多少条
private int showcounts;
//申明委托,执行翻页后数据绑定的页面层方法
public delegate void RefreshPage();
private RefreshPage refresh;
//表名
private string _TBName;
//字段
private string _Field;
//条件
private string _WhereStr;
#endregion
#region 定义属性
/// <summary>
/// 设置数据源表名
/// </summary>
public string TBname
{
set { _TBName = value; }
}
/// <summary>
/// 设置字段,使用","隔开
/// </summary>
public string Field
{
set { _Field = value; }
}
/// <summary>
/// 设置查询的条件
/// </summary>
public string WhereStr
{
set { _WhereStr = value; }
}
public RefreshPage Refresh
{
get
{
return refresh;
}
set
{
refresh = value;
}
}
/// <summary>
/// 设置总页数
/// </summary>
private int SetCounts
{
get
{
return Convert.ToInt32(labgong.Text);
}
set
{
labgong.Text = value.ToString();
}
}
/// <summary>
/// 获取请求第几页的index
/// </summary>
private int OfCount
{
get
{
return ofcount;
}
}
/// <summary>
/// 获取输入的每页显示多少条
/// </summary>
private int ShowCounts
{
get
{
try
{
showcounts = Convert.ToInt32(drpcount.SelectedValue);
return showcounts;
}
catch
{
return 10;
}
}
}
#endregion
#region 定义方法
public DataSet GvDataBind()
{
showcounts = Convert.ToInt32(drpcount.SelectedValue);
return GetDataSet();
}
#endregion
#region 定义事件
protected void Page_Load(object sender, EventArgs e)
{
//初始化加载
if (!IsPostBack)
{
}
}
protected void btngo_Click(object sender, EventArgs e)
{
//跳转
int tmp = 0;
try
{
tmp = Convert.ToInt32(tbxgo.Text);
}
catch
{
tmp = 1;
tbxgo.Text = "1";
}
if (tmp <= 0)
{
tmp = 1;
}
int tmp2 = Convert.ToInt32(labgong.Text);
if (tmp > tmp2)
{
ofcount = tmp2;
}
else
{
ofcount = tmp;
}
labdang.Text = ofcount.ToString();
tbxgo.Text = ofcount.ToString();
Refresh();
}
protected void lkbfirst_Click(object sender, EventArgs e)
{
//第一页
ofcount = 1;
labdang.Text = ofcount.ToString();
Refresh();
}
protected void lkblast_Click(object sender, EventArgs e)
{
//上一页
int tmp = Convert.ToInt32(labdang.Text);
tmp = tmp - 1;
if (tmp <= 0)
{
tmp = 1;
}
ofcount = tmp;
labdang.Text = tmp.ToString();
Refresh();
}
protected void lkbnext_Click(object sender, EventArgs e)
{
//下一页
int tmp = Convert.ToInt32(labgong.Text);
int tmp2 = Convert.ToInt32(labdang.Text);
tmp2 = tmp2 + 1;
if (tmp2 > tmp)
{
ofcount = tmp;
labdang.Text = tmp.ToString();
}
else
{
ofcount = tmp2;
labdang.Text = tmp2.ToString();
}
Refresh();
}
protected void lkbback_Click(object sender, EventArgs e)
{
//最后一页
ofcount = Convert.ToInt32(labgong.Text);
labdang.Text = ofcount.ToString();
Refresh();
}
protected void drpcount_SelectedIndexChanged(object sender, EventArgs e)
{
//设置显示条数
showcounts = Convert.ToInt32(drpcount.SelectedValue);
labdang.Text = "1";
Refresh();
}
#endregion
#region 数据源
private DataSet GetDataSet()
{
WMS.DataAccess.DataBase ado = new WMS.DataAccess.DataBase();
SqlCommand cmd = new SqlCommand();
cmd.CommandText = "proc_ListPage";
//存储过程分页,表名
SqlParameter tbname = new SqlParameter("@tblName", SqlDbType.VarChar, 50);
tbname.Value = _TBName;
cmd.Parameters.Add(tbname);
//字段
SqlParameter fldName = new SqlParameter("@fldName", SqlDbType.VarChar, 50);
fldName.Value = _Field;
cmd.Parameters.Add(fldName);
//每页显示多少条
SqlParameter pageSize = new SqlParameter("@pageSize", SqlDbType.VarChar, 10);
pageSize.Value = showcounts;
cmd.Parameters.Add(pageSize);
//显示第几页
SqlParameter page = new SqlParameter("@page", SqlDbType.VarChar, 20);
page.Value = ofcount;
cmd.Parameters.Add(page);
//总页数
SqlParameter pageCount = new SqlParameter("@pageCount", SqlDbType.VarChar, 20);
pageCount.Direction = ParameterDirection.Output;
cmd.Parameters.Add(pageCount);
//总条数
SqlParameter Counts = new SqlParameter("@Counts", SqlDbType.VarChar, 20);
Counts.Direction = ParameterDirection.Output;
cmd.Parameters.Add(Counts);
//排序字段
SqlParameter fldSort = new SqlParameter("@fldSort", SqlDbType.VarChar, 20);
fldSort.Value = "flngID";
cmd.Parameters.Add(fldSort);
//排序方式
SqlParameter Sort = new SqlParameter("@Sort", SqlDbType.VarChar, 20);
Sort.Value = "1";
cmd.Parameters.Add(Sort);
//查询条件
SqlParameter strCondition = new SqlParameter("@strCondition", SqlDbType.VarChar, 100);
strCondition.Value = _WhereStr;
cmd.Parameters.Add(strCondition);
//表主键
SqlParameter ID = new SqlParameter("@ID", SqlDbType.VarChar, 10);
ID.Value = "flngID";
cmd.Parameters.Add(ID);
SqlParameter Dist = new SqlParameter("@Dist", SqlDbType.Bit);
Dist.Value = 0;
cmd.Parameters.Add(Dist);
DataSet ds = ado.GetDataSet(ref cmd);
pagecounts = Convert.ToInt32(pageCount.Value);
labgong.Text = pagecounts.ToString();
return ds;
}
#endregion
}
using System.Data;
using System.Data.SqlClient;
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;
public partial class Page : System.Web.UI.UserControl
{
#region 定义变量
//第几页
private int ofcount = 1;
//共几页
private int pagecounts;
//跳转到几页
private int gocount;
//显示多少条
private int showcounts;
//申明委托,执行翻页后数据绑定的页面层方法
public delegate void RefreshPage();
private RefreshPage refresh;
//表名
private string _TBName;
//字段
private string _Field;
//条件
private string _WhereStr;
#endregion
#region 定义属性
/// <summary>
/// 设置数据源表名
/// </summary>
public string TBname
{
set { _TBName = value; }
}
/// <summary>
/// 设置字段,使用","隔开
/// </summary>
public string Field
{
set { _Field = value; }
}
/// <summary>
/// 设置查询的条件
/// </summary>
public string WhereStr
{
set { _WhereStr = value; }
}
public RefreshPage Refresh
{
get
{
return refresh;
}
set
{
refresh = value;
}
}
/// <summary>
/// 设置总页数
/// </summary>
private int SetCounts
{
get
{
return Convert.ToInt32(labgong.Text);
}
set
{
labgong.Text = value.ToString();
}
}
/// <summary>
/// 获取请求第几页的index
/// </summary>
private int OfCount
{
get
{
return ofcount;
}
}
/// <summary>
/// 获取输入的每页显示多少条
/// </summary>
private int ShowCounts
{
get
{
try
{
showcounts = Convert.ToInt32(drpcount.SelectedValue);
return showcounts;
}
catch
{
return 10;
}
}
}
#endregion
#region 定义方法
public DataSet GvDataBind()
{
showcounts = Convert.ToInt32(drpcount.SelectedValue);
return GetDataSet();
}
#endregion
#region 定义事件
protected void Page_Load(object sender, EventArgs e)
{
//初始化加载
if (!IsPostBack)
{
}
}
protected void btngo_Click(object sender, EventArgs e)
{
//跳转
int tmp = 0;
try
{
tmp = Convert.ToInt32(tbxgo.Text);
}
catch
{
tmp = 1;
tbxgo.Text = "1";
}
if (tmp <= 0)
{
tmp = 1;
}
int tmp2 = Convert.ToInt32(labgong.Text);
if (tmp > tmp2)
{
ofcount = tmp2;
}
else
{
ofcount = tmp;
}
labdang.Text = ofcount.ToString();
tbxgo.Text = ofcount.ToString();
Refresh();
}
protected void lkbfirst_Click(object sender, EventArgs e)
{
//第一页
ofcount = 1;
labdang.Text = ofcount.ToString();
Refresh();
}
protected void lkblast_Click(object sender, EventArgs e)
{
//上一页
int tmp = Convert.ToInt32(labdang.Text);
tmp = tmp - 1;
if (tmp <= 0)
{
tmp = 1;
}
ofcount = tmp;
labdang.Text = tmp.ToString();
Refresh();
}
protected void lkbnext_Click(object sender, EventArgs e)
{
//下一页
int tmp = Convert.ToInt32(labgong.Text);
int tmp2 = Convert.ToInt32(labdang.Text);
tmp2 = tmp2 + 1;
if (tmp2 > tmp)
{
ofcount = tmp;
labdang.Text = tmp.ToString();
}
else
{
ofcount = tmp2;
labdang.Text = tmp2.ToString();
}
Refresh();
}
protected void lkbback_Click(object sender, EventArgs e)
{
//最后一页
ofcount = Convert.ToInt32(labgong.Text);
labdang.Text = ofcount.ToString();
Refresh();
}
protected void drpcount_SelectedIndexChanged(object sender, EventArgs e)
{
//设置显示条数
showcounts = Convert.ToInt32(drpcount.SelectedValue);
labdang.Text = "1";
Refresh();
}
#endregion
#region 数据源
private DataSet GetDataSet()
{
WMS.DataAccess.DataBase ado = new WMS.DataAccess.DataBase();
SqlCommand cmd = new SqlCommand();
cmd.CommandText = "proc_ListPage";
//存储过程分页,表名
SqlParameter tbname = new SqlParameter("@tblName", SqlDbType.VarChar, 50);
tbname.Value = _TBName;
cmd.Parameters.Add(tbname);
//字段
SqlParameter fldName = new SqlParameter("@fldName", SqlDbType.VarChar, 50);
fldName.Value = _Field;
cmd.Parameters.Add(fldName);
//每页显示多少条
SqlParameter pageSize = new SqlParameter("@pageSize", SqlDbType.VarChar, 10);
pageSize.Value = showcounts;
cmd.Parameters.Add(pageSize);
//显示第几页
SqlParameter page = new SqlParameter("@page", SqlDbType.VarChar, 20);
page.Value = ofcount;
cmd.Parameters.Add(page);
//总页数
SqlParameter pageCount = new SqlParameter("@pageCount", SqlDbType.VarChar, 20);
pageCount.Direction = ParameterDirection.Output;
cmd.Parameters.Add(pageCount);
//总条数
SqlParameter Counts = new SqlParameter("@Counts", SqlDbType.VarChar, 20);
Counts.Direction = ParameterDirection.Output;
cmd.Parameters.Add(Counts);
//排序字段
SqlParameter fldSort = new SqlParameter("@fldSort", SqlDbType.VarChar, 20);
fldSort.Value = "flngID";
cmd.Parameters.Add(fldSort);
//排序方式
SqlParameter Sort = new SqlParameter("@Sort", SqlDbType.VarChar, 20);
Sort.Value = "1";
cmd.Parameters.Add(Sort);
//查询条件
SqlParameter strCondition = new SqlParameter("@strCondition", SqlDbType.VarChar, 100);
strCondition.Value = _WhereStr;
cmd.Parameters.Add(strCondition);
//表主键
SqlParameter ID = new SqlParameter("@ID", SqlDbType.VarChar, 10);
ID.Value = "flngID";
cmd.Parameters.Add(ID);
SqlParameter Dist = new SqlParameter("@Dist", SqlDbType.Bit);
Dist.Value = 0;
cmd.Parameters.Add(Dist);
DataSet ds = ado.GetDataSet(ref cmd);
pagecounts = Convert.ToInt32(pageCount.Value);
labgong.Text = pagecounts.ToString();
return ds;
}
#endregion
}
好了,大功告成了,再通过页面调用试试,怎么调用:
protected void Page_Load(object sender, EventArgs e)
{
p1.Refresh = gvDataBind;
if (!IsPostBack)
{
gvDataBind();
}
}
private void gvDataBind()
{
p1.TBname = "Customers";
p1.Field = "CustomerID, CompanyName ";
p1.WhereStr = string.Empty;
DataSet ds = p1.GvDataBind();
GridView1.DataSource = ds;
GridView1.DataBind();
}
{
p1.Refresh = gvDataBind;
if (!IsPostBack)
{
gvDataBind();
}
}
private void gvDataBind()
{
p1.TBname = "Customers";
p1.Field = "CustomerID, CompanyName ";
p1.WhereStr = string.Empty;
DataSet ds = p1.GvDataBind();
GridView1.DataSource = ds;
GridView1.DataBind();
}
应该可以了吧?