原创的自定义分页UserControl 分享及探讨!

----------Pager.ascx-------------------------------------

<%@ Control Language="c#" AutoEventWireup="false" Codebehind="Test.Pager.ascx.cs" Inherits="Pager" TargetSchema="http://schemas.microsoft.com/intellisense/ie5" %>

<asp:label id="lbl_PageInfo" runat="server">还未用PagerBind()方法绑定</asp:label>&nbsp;

<asp:linkbutton id="btn_First" runat="server" Visible="False">首页</asp:linkbutton>&nbsp;<asp:linkbutton id="btn_Pre" runat="server" Visible="False">前页</asp:linkbutton>&nbsp;<asp:linkbutton id="btn_Next" runat="server" Visible="False">下页</asp:linkbutton>&nbsp;<asp:linkbutton id="btn_Last" runat="server" Visible="False">尾页</asp:linkbutton>&nbsp;<asp:label id="lbl_1" runat="server" Visible="False">转到</asp:label>

<asp:dropdownlist id="drop_CurPage" runat="server" AutoPostBack="True" Visible="False">

<asp:ListItem Value="0">0</asp:ListItem>

</asp:dropdownlist>

<asp:Label id="lbl_2" runat="server" Visible="False">页</asp:Label>

----------end--------------------------------------------

----------Pager.ascx.cs-------------------------------------

namespace Test

{

using System;

using System.Data;

using System.Drawing;

using System.Web;

using System.Web.UI.WebControls;

using System.Web.UI.HtmlControls;

/// <summary>

/// Pager 的摘要说明。

/// </summary>

public class Pager : System.Web.UI.UserControl

{

protected System.Web.UI.WebControls.LinkButton btn_First;

protected System.Web.UI.WebControls.LinkButton btn_Pre;

protected System.Web.UI.WebControls.LinkButton btn_Next;

protected System.Web.UI.WebControls.LinkButton btn_Last;

protected System.Web.UI.WebControls.DropDownList drop_CurPage;

protected System.Web.UI.WebControls.Label lbl_1;

protected System.Web.UI.WebControls.Label lbl_2;

protected System.Web.UI.WebControls.Label lbl_PageInfo;

public event EventHandler MyClick;

private void Page_Load(object sender, System.EventArgs e)

{

// 在此处放置用户代码以初始化页面

if (!Page.IsPostBack)

{

RecTotal = 0;

PageSize = 10;

CurPage = 0;

Lang = 0; //中文版

}

}

#region Pager控件使用帮助及参数说明

/*

* 版本:V1.0

本控件带有三个自定义属性和一个方法.具体如下:

属性:

RecTotal 记录总数 默认值:0

PageSize 每页记录数 默认值:0

CurPage 当前页 默认值:0

Lang 版本语言 默认值:0 注:0为中文版,1为英文版

方法:

PagerBind 绑定当前自定义控件,如不绑定,该控件则不能显示到页面上

*/

#endregion

#region Web 窗体设计器生成的代码

override protected void OnInit(EventArgs e)

{

//

// CODEGEN: 该调用是 ASP.NET Web 窗体设计器所必需的。

//

InitializeComponent();

base.OnInit(e);

}

/// <summary>

/// 设计器支持所需的方法 - 不要使用代码编辑器

/// 修改此方法的内容。

/// </summary>

private void InitializeComponent()

{

this.btn_First.Click += new System.EventHandler(this.btn_First_Click);

this.btn_Pre.Click += new System.EventHandler(this.btn_Pre_Click);

this.btn_Next.Click += new System.EventHandler(this.btn_Next_Click);

this.btn_Last.Click += new System.EventHandler(this.btn_Last_Click);

this.drop_CurPage.SelectedIndexChanged += new System.EventHandler(this.drop_CurPage_SelectedIndexChanged);

this.Load += new System.EventHandler(this.Page_Load);

}

#endregion

#region 共用参数传递

public int RecTotal //记录总数

{

get { return (int)ViewState["RecTotal"]; }

set { ViewState["RecTotal"] = value; }

}

public int PageSize //每页记录数

{

get { return (int)ViewState["PageSize"]; }

set { ViewState["PageSize"] = value; }

}

public int CurPage //当前页

{

get { return (int)ViewState["CurPage"]; }

set { ViewState["CurPage"] = value; }

}

public int Lang //语言选择

{

get { return (int)ViewState["Lang"]; }

set { ViewState["Lang"] = value; }

}

#endregion

#region 相关方法及事件

public void PagerBind()

{

ViewState["PageTotal"]=((int)ViewState["RecTotal"]%(int)ViewState["PageSize"]>0) ? (int)ViewState["RecTotal"]/(int)ViewState["PageSize"]+1 : (int)ViewState["RecTotal"]/(int)ViewState["PageSize"]; //页总数

if ((int)ViewState["Lang"]==0)

{

lbl_PageInfo.Text="共<font color=red>"+ViewState["RecTotal"].ToString()+"</font>条信息 <font color=red>"+ViewState["PageSize"].ToString()+"</font>条/页 当前<font color=red>"+((int)ViewState["CurPage"]+1).ToString()+"</font>/<font color=red>"+ViewState["PageTotal"].ToString()+"</font>页";

}

else

{

lbl_PageInfo.Text="Total<font color=red>"+ViewState["RecTotal"].ToString()+"</font>Info <font color=red>"+ViewState["PageSize"].ToString()+"</font>/Page Current<font color=red>"+((int)ViewState["CurPage"]+1).ToString()+"</font>/<font color=red>"+ViewState["PageTotal"].ToString()+"</font>Page";

lbl_1.Text = "To";

lbl_2.Text = "Page";

btn_First.Text = "First";

btn_Pre.Text = "Forward";

btn_Next.Text = "Next";

btn_Last.Text = "Last";

}

drop_CurPage.Items.Clear();

for (int i=0;i<(int)ViewState["PageTotal"];i++)

{

drop_CurPage.Items.Add(Convert.ToString(i+1));

}

drop_CurPage.SelectedIndex = drop_CurPage.Items.IndexOf(drop_CurPage.Items.FindByValue(Convert.ToString((int)ViewState["CurPage"]+1)));

btn_First.Visible = true;

btn_Pre.Visible = true;

btn_Next.Visible = true;

btn_Last.Visible = true;

lbl_1.Visible = true;

lbl_2.Visible = true;

drop_CurPage.Visible = true;

btn_First.Enabled = true;

btn_Pre.Enabled = true;

btn_Next.Enabled = true;

btn_Last.Enabled = true;

if ((int)ViewState["CurPage"]==0)

{

btn_First.Enabled = false;

btn_Pre.Enabled = false;

btn_Next.Enabled = true;

btn_Last.Enabled = true;

}

if ((int)ViewState["CurPage"]==( (int)ViewState["PageTotal"]-1) )

{

btn_First.Enabled = true;

btn_Pre.Enabled = true;

btn_Next.Enabled = false;

btn_Last.Enabled = false;

}

if (( (int)ViewState["PageTotal"]-1) == 0 )

{

btn_First.Enabled = false;

btn_Pre.Enabled = false;

btn_Next.Enabled = false;

btn_Last.Enabled = false;

}

}

private void drop_CurPage_SelectedIndexChanged(object sender, System.EventArgs e)

{

ViewState["CurPage"] = drop_CurPage.SelectedIndex;

PagerBind();

if (MyClick != null)

MyClick(this, EventArgs.Empty);

}

private void btn_First_Click(object sender, System.EventArgs e)

{

ViewState["CurPage"] = 0;

PagerBind();

if (MyClick != null)

MyClick(this, EventArgs.Empty);

}

private void btn_Pre_Click(object sender, System.EventArgs e)

{

ViewState["CurPage"] = (int)ViewState["CurPage"]-1;

PagerBind();

if (MyClick != null)

MyClick(this, EventArgs.Empty);

}

private void btn_Next_Click(object sender, System.EventArgs e)

{

ViewState["CurPage"] = (int)ViewState["CurPage"]+1;

PagerBind();

if (MyClick != null)

MyClick(this, EventArgs.Empty);

}

private void btn_Last_Click(object sender, System.EventArgs e)

{

ViewState["CurPage"] = (int)ViewState["PageTotal"]-1;

PagerBind();

if (MyClick != null)

MyClick(this, EventArgs.Empty);

}

#endregion

}

}

------------------------------------------------------------------------------

-----------调用页面WebForm1.aspx--------------------------------------------

<%@ Page language="c#" Codebehind="WebForm1.aspx.cs" AutoEventWireup="false" Inherits="Test.WebForm1" %>

<%@ Register TagPrefix="uc1" TagName="Pager" Src="Pager.ascx" %>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >

<HTML>

<HEAD>

<title>WebForm2</title>

<meta name="GENERATOR" Content="Microsoft Visual Studio .NET 7.1">

<meta name="CODE_LANGUAGE" Content="C#">

<meta name="vs_defaultClientScript" content="JavaScript">

<meta name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5">

</HEAD>

<body>

<form id="Form1" method="post" runat="server">

<FONT face="宋体">

<asp:DataGrid id="DataGrid1" runat="server"></asp:DataGrid></FONT>

<uc1:Pager id="Pager1" runat="server" OnMyClick="GetPage"></uc1:Pager>

</form>

</body>

</HTML>

------------------------------------------------------------------------------------

-----------调用页面WebForm1.aspx.cs--------------------------------------------

using System;

using System.Collections;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Web;

using System.Web.SessionState;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Web.UI.HtmlControls;

namespace Test

{

/// <summary>

/// WebForm2 的摘要说明。

/// </summary>

public class WebForm1 : System.Web.UI.Page

{

protected System.Web.UI.WebControls.DataGrid DataGrid1;

protected Test.Pager Pager1;

private void Page_Load(object sender, System.EventArgs e)

{

// 在此处放置用户代码以初始化页面

DataGrid1Bind(0);

}

#region Web 窗体设计器生成的代码

override protected void OnInit(EventArgs e)

{

//

// CODEGEN: 该调用是 ASP.NET Web 窗体设计器所必需的。

//

InitializeComponent();

base.OnInit(e);

}

/// <summary>

/// 设计器支持所需的方法 - 不要使用代码编辑器修改

/// 此方法的内容。

/// </summary>

private void InitializeComponent()

{

this.Load += new System.EventHandler(this.Page_Load);

}

#endregion

private void DataGrid1Bind(int Page)

{

DataGrid1.DataSource = myDataSource; //此处请自行绑定当前页数据集的数据源

DataGrid1.DataBind();

Pager1.RecTotal = MyTotal; //此处请自行绑定数据集总记录数

Pager1.PageSize = 10;

Pager1.CurPage = Page;

Pager1.Lang = 0; //0为中文版,1为英文版

Pager1.PagerBind();

}

public void GetPage(Object sender, EventArgs e)

{

DataGrid1Bind(Pager1.CurPage);

}

}

}

-------------------------------------------------------------------------

• ·学习javabean
• ·A Dom4j sample program
• ·在.net里编写Windows Service
• ·数据库案例分析
• ·[CE编程]第7章 Files, Databa
• ·JavaScript日历
• ·这两天对SSO的认识
• ·java之旅（3）什么是java？
• ·《关于个人承接项目的注意事项》读后感
• ·我经历的"stop c000021a