一直以来都觉得分页是麻烦的事情，.NET中虽然有DATAGRID的分页，但用其他形式的列表仍然需要使用到分页，一次一次的写不利于效率及面向对象的方法，用类或用户控件也总觉得怪怪的，用第3方的自己觉得不放心，也不利于自己进行修改，干脆就自己写了一个。
(另外注意：在控件编译时，可以在AssemblyInfo.cs文件中设置控件的标签和名称空间，如：
using System.Reflection;
using System.Runtime.CompilerServices;
using System.Web.UI;
[assembly: TagPrefix("PublicControls","PublicControls")] // 自定义控件前缀
using System.Reflection;using System.Runtime.CompilerServices;using System.Web.UI;[assembly: TagPrefix("PublicControls","PublicControls")] // 自定义控件前缀第一个参数是名称空间（必须是你的控件类的名称空间），第二个是标签名（可自定义）
记得要加入System.Web.UI;名称空间，另外 将控件类内的
[DefaultProperty("Text"),
ToolboxData("<PublicControls:PageNavigation runat=server></PublicControls:PageNavigation>")]
这句屏蔽掉
所有代码如下：
using System;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.ComponentModel;
using System.Collections;
using System.Collections.Specialized;
namespace PublicControls
{
///<summary>
/// PageNavigation 分页导航控件。
///</summary>
[DefaultProperty("Text"),
ToolboxData("<PublicControls:PageNavigation runat=server></PublicControls:PageNavigation>")]
public class PageNavigation : Control,IPostBackDataHandler,IPostBackEventHandler
{
#region预定义
private string _style;
private int _count;
private int _pagesize;
private int _pageindex;
private int _pages; //页群
private int _currentpages;
private string _first;
private string _pres;
private string _pre;
private string _next;
private string _nexts;
private string _last;
///<summary>
///委托页面索引事件
///</summary>
public event EventHandler PageIndexChange;
#endregion
#region属性
///<summary>
///相关属性样式字符串属性
///</summary>
[Bindable(false),
Category("StyleString"),
DefaultValue("Align=left")]
public string StyleString
{
get
{
_style = (string)ViewState["StyleString"];
return _style;
}
set
{
_style= value;
ViewState["StyleString"] = _style;
}
}
///<summary>
///记录总数
///</summary>
[Bindable(false),
Category("Count"),
DefaultValue(0)]
public int Count
{
get
{
if (this.IsNumeric(ViewState["Count"]))
{
_count = (int)ViewState["Count"];
}
return _count;
}
set
{
_count = value;
ViewState["Count"] = _count;
}
}
///<summary>
///页面大小
///</summary>
[Bindable(false),
Category("Pagesize"),
DefaultValue(10)]
public int Pagesize
{
get
{
if (this.IsNumeric(ViewState["Pagesize"]))
{
_pagesize = (int)ViewState["Pagesize"];
}
return _pagesize;
}
set
{
_pagesize = value;
ViewState["Pagesize"] = _pagesize;
}
}
///<summary>
///当前页索引
///</summary>
[Bindable(false),
Category("Pageindex"),
DefaultValue(0)]
public int Pageindex
{
get
{
if (this.IsNumeric(ViewState["Pageindex"]))
{
_pageindex = (int)ViewState["Pageindex"];
}
return _pageindex;
}
set
{
_pageindex = value;
ViewState["Pageindex"] = _pageindex;
}
}
///<summary>
///页群属性
///</summary>
public int Pages
{
get
{
if (this.IsNumeric(ViewState["Pages"]))
{
_pages = (int)ViewState["Pages"];
}
return _pages;
}
set
{
_pages = value;
ViewState["Pages"] = _pages;
}
}
///<summary>
///当前页群索引
///</summary>
public int CurrentPages
{
get
{
if (this.IsNumeric(ViewState["CurrentPages"]))
{
_currentpages = (int)ViewState["CurrentPages"];
}
return _currentpages;
}
set
{
_currentpages = value;
ViewState["CurrentPages"] = _currentpages;
}
}
///<summary>
///标记样式
///</summary>
[Bindable(false),
Category("first"),
DefaultValue("第一页")]
public string First
{
get
{
_first = (string)ViewState["First"];
return _first;
}
set
{
_first = value;
ViewState["First"] = _first;
}
}
///<summary>
///标记样式
///</summary>
[Bindable(false),
Category("pres"),
DefaultValue("前N页")]
public string Pres
{
get
{
_pres = (string)ViewState["Pres"];
return _pres;
}
set
{
_pres = value;
ViewState["Pres"] = _pres;
}
}
///<summary>
///标记样式
///</summary>
[Bindable(false),
Category("pre"),
DefaultValue("前一页")]
public string Pre
{
get
{
_pre = (string)ViewState["Pre"];
return _pre;
}
set
{
_pre = value;
ViewState["Pre"] = _pre;
}
}
///<summary>
///标记样式
///</summary>
[Bindable(false),
Category("next"),
DefaultValue("后一页")]
public string Next
{
get
{
_next = (string)ViewState["Next"];
return _next;
}
set
{
_next = value;
ViewState["Next"] = _next;
}
}
///<summary>
///标记样式
///</summary>
[Bindable(false),
Category("nexts"),
DefaultValue("后N页")]
public string Nexts
{
get
{
_nexts = (string)ViewState["Nexts"];
return _nexts;
}
set
{
_nexts = value;
ViewState["Nexts"] = _nexts;
}
}
///<summary>
///标记样式
///</summary>
[Bindable(false),
Category("last"),
DefaultValue("最后一页")]
public string Last
{
get
{
_last = (string)ViewState["Last"];
return _last;
}
set
{
_last = value;
ViewState["Last"] = _last;
}
}
#endregion
#region事件
///<summary>
///当由类实现时，使服务器控件能够处理将窗体发送到服务器时引发的事件。
///</summary>
///<param name="e">所传递的参数</param>
public void RaisePostBackEvent(string e)
{
//当发生回送的时候改变控件当前索引
if(e=="top")
{
Pageindex = 0;
CurrentPages = 0 ;
}
else if(e=="last")
{
Pageindex = (Count+Pagesize-1)/Pagesize -1;
CurrentPages = ((Count+Pagesize-1)/Pagesize+Pages-1)/ Pages -1;
if(Pageindex<0)
{
Pageindex=0;
}
if(CurrentPages<0)
{
CurrentPages=0;
}
}
else if(e=="pre")
{
if(Pageindex>0)
{
Pageindex--;
if(Pageindex<CurrentPages*Pages && Pageindex>0)
{
CurrentPages--;
}
}
}
else if(e=="next")
{
if(Pageindex<(Count+Pagesize-1)/Pagesize -1)
{
Pageindex++;
if(Pageindex>(CurrentPages+1)*Pages-1 && Pageindex<Count-1)
{
CurrentPages++;
}
}
}
else if(e=="pres")
{
Pageindex -= Pages;
if(Pageindex<0)
{
Pageindex = 0;
}
if(Pageindex<CurrentPages*Pages && Pageindex>0)
{
CurrentPages--;
}
}
else if(e=="nexts")
{
Pageindex += Pages;
if(Pageindex>(Count+Pagesize-1)/Pagesize -1)
{
Pageindex = (Count+Pagesize-1)/Pagesize -1;
}
if(Pageindex>(CurrentPages+1)*Pages-1 && Pageindex<Count-1)
{
CurrentPages++;
}
}
else
{
Pageindex = int.Parse(e.ToString());
}
//发生回送事件时引发OnPageIndexChange事件
OnPageIndexChange(System.EventArgs.Empty);
}
///<summary>
///当由类实现时，为 ASP.NET 服务器控件处理回发数据。
///</summary>
///<param name="postDataKey">数据集合元素索引</param>
///<param name="values">string 的排序集合</param>
///<returns></returns>
public bool LoadPostData(string postDataKey, NameValueCollection values)
{
//Pageindex = Int32.Parse(values[this.UniqueID].Split('|')[0]);
//CurrentPages = Int32.Parse(values[this.UniqueID].Split('|')[1]);
return false;
}
///<summary>
///当由类实现时，用信号要求服务器控件对象通知 ASP.NET 应用程序该控件的状态已更改。
///</summary>
public void RaisePostDataChangedEvent()
{
}
///<summary>
///当页面索引改变，触发委托
///</summary>
///<param name="e"></param>
protected void OnPageIndexChange(System.EventArgs e)
{
//委托给加载控件页的PageIndexChange事件
if (PageIndexChange!=null)
{
PageIndexChange(this,e);
}
}
///<summary>
///预呈现
///</summary>
///<param name="e"></param>
protected override void OnPreRender(EventArgs e)
{
}
#endregion
#region输出
///<summary>
///将此控件呈现给指定的输出参数。
///</summary>
///<param name="output">要写出到的 HTML 编写器 </param>
protected override void Render(HtmlTextWriter output)
{
string Pagestring = ""; //定义页码呈现字符串
string Text = null; //输出主结构字符串变量定义
int NO;
//输出主结构
Text = "<div $style$>";
Text +="<a href =\"javascript:"+ Page.GetPostBackEventReference(this,"top")+ "\">"+First+"</a> ";
Text +="<a href =\"javascript:"+ Page.GetPostBackEventReference(this,"pres")+ "\">"+Pres+"</a> ";
Text +="<a href =\"javascript:"+ Page.GetPostBackEventReference(this,"pre")+ "\">"+Pre+"</a> ";
Text +="$Pagestring$";
Text +="<a href =\"javascript:"+ Page.GetPostBackEventReference(this,"next")+ "\">"+Next+"</a> ";
Text +="<a href =\"javascript:"+ Page.GetPostBackEventReference(this,"nexts")+ "\">"+Nexts+"</a> ";
Text +="<a href =\"javascript:"+ Page.GetPostBackEventReference(this,"last")+ "\">"+Last+"</a> ";
Text +="</div>";//<input type = hidden name ="+this.UniqueID+" value = "+this.Pageindex+"|"+this.CurrentPages+">";
//当页大小小于0时，还原为1，防止预算出现除0错误
if (!(Pagesize>0))
{
Pagesize = 1;
}
//计算出总页数，并循环输出页码
for (int i = 0;i< Pages ;i++ )
{
//获得页群内页码
NO = Pages * CurrentPages + i;
if(NO<(Count+Pagesize-1)/Pagesize)
{
//判断页码是否为当前页
if (Pageindex != NO)
{
Pagestring += "<a href = \"javascript:"+ Page.GetPostBackEventReference(this,NO.ToString())+ "\">"+(NO+1).ToString()+"</a> ";
}
//如果不是，页面部分无连接
else
{
Pagestring += (NO+1).ToString()+" ";
}
}
}
if (!(Pagestring.Trim().Length>0))
{
Pagestring = "1";
}
//替换对齐属性
Text = Text.Replace("$style$",StyleString);
//替换页码部分
Text = Text.Replace("$Pagestring$",Pagestring);
output.Write(Text);
}
#endregion
#region其他函数
///<summary>
///判断是否为数字字符串
///</summary>
///<param name="str">需验证的字符串</param>
///<returns>判断结果，符合条件为True,不符合条件为False</returns>
public bool IsNumeric(string str)
{
//判断是否为空
if (str == null || str.Length==0)
{
return false;
}
//循环检查每个字符
foreach(char c in str)
{
if (!Char.IsNumber(c))
{
return false;
}
}
return true;
}
///<summary>
///判断是否为数字字符串
///</summary>
///<param name="obj">需验证的字符串</param>
///<returns>判断结果，符合条件为True,不符合条件为False</returns>
public bool IsNumeric(object obj)
{
obj += "";
string str = obj.ToString();
//判断是否为空
if (str == null || str.Length==0)
{
return false;
}
//循环检查每个字符
foreach(char c in str)
{
if (!Char.IsNumber(c))
{
return false;
}
}
return true;
}
#endregion
}
}
[DefaultProperty("Text"), ToolboxData("<PublicControls:PageNavigation runat=server></PublicControls:PageNavigation>")]所有代码如下：
using System;using System.Web.UI;using System.Web.UI.WebControls;using System.ComponentModel;using System.Collections;using System.Collections.Specialized;namespace PublicControls{
///<summary>
/// PageNavigation 分页导航控件。 ///</summary> [DefaultProperty("Text"), ToolboxData("<PublicControls:PageNavigation runat=server></PublicControls:PageNavigation>")] public class PageNavigation : Control,IPostBackDataHandler,IPostBackEventHandler { #region预定义 private string _style; private int _count; private int _pagesize; private int _pageindex; private int _pages; //页群 private int _currentpages; private string _first; private string _pres; private string _pre; private string _next; private string _nexts; private string _last; ///<summary> ///委托页面索引事件 ///</summary> public event EventHandler PageIndexChange; #endregion #region属性 ///<summary> ///相关属性样式字符串属性 ///</summary> [Bindable(false), Category("StyleString"), DefaultValue("Align=left")] public string StyleString { get { _style = (string)ViewState["StyleString"]; return _style; } set { _style= value; ViewState["StyleString"] = _style; } } ///<summary> ///记录总数 ///</summary> [Bindable(false), Category("Count"), DefaultValue(0)] public int Count { get { if (this.IsNumeric(ViewState["Count"])) { _count = (int)ViewState["Count"]; } return _count; } set { _count = value; ViewState["Count"] = _count; } } ///<summary> ///页面大小 ///</summary> [Bindable(false), Category("Pagesize"), DefaultValue(10)] public int Pagesize { get { if (this.IsNumeric(ViewState["Pagesize"])) { _pagesize = (int)ViewState["Pagesize"]; } return _pagesize; } set { _pagesize = value; ViewState["Pagesize"] = _pagesize; } } ///<summary> ///当前页索引 ///</summary> [Bindable(false), Category("Pageindex"), DefaultValue(0)] public int Pageindex { get { if (this.IsNumeric(ViewState["Pageindex"])) { _pageindex = (int)ViewState["Pageindex"]; } return _pageindex; } set { _pageindex = value; ViewState["Pageindex"] = _pageindex; } } ///<summary> ///页群属性 ///</summary> public int Pages { get { if (this.IsNumeric(ViewState["Pages"])) { _pages = (int)ViewState["Pages"]; } return _pages; } set { _pages = value; ViewState["Pages"] = _pages; } } ///<summary> ///当前页群索引 ///</summary> public int CurrentPages { get { if (this.IsNumeric(ViewState["CurrentPages"])) { _currentpages = (int)ViewState["CurrentPages"]; } return _currentpages; } set { _currentpages = value; ViewState["CurrentPages"] = _currentpages; } } ///<summary> ///标记样式 ///</summary> [Bindable(false), Category("first"), DefaultValue("第一页")] public string First { get { _first = (string)ViewState["First"]; return _first; } set { _first = value; ViewState["First"] = _first; } } ///<summary> ///标记样式 ///</summary> [Bindable(false), Category("pres"), DefaultValue("前N页")] public string Pres { get { _pres = (string)ViewState["Pres"]; return _pres; } set { _pres = value; ViewState["Pres"] = _pres; } } ///<summary> ///标记样式 ///</summary> [Bindable(false), Category("pre"), DefaultValue("前一页")] public string Pre { get { _pre = (string)ViewState["Pre"]; return _pre; } set { _pre = value; ViewState["Pre"] = _pre; } } ///<summary> ///标记样式 ///</summary> [Bindable(false), Category("next"), DefaultValue("后一页")] public string Next { get { _next = (string)ViewState["Next"]; return _next; } set { _next = value; ViewState["Next"] = _next; } } ///<summary> ///标记样式 ///</summary> [Bindable(false), Category("nexts"), DefaultValue("后N页")] public string Nexts { get { _nexts = (string)ViewState["Nexts"]; return _nexts; } set { _nexts = value; ViewState["Nexts"] = _nexts; } } ///<summary> ///标记样式 ///</summary> [Bindable(false), Category("last"), DefaultValue("最后一页")] public string Last { get { _last = (string)ViewState["Last"]; return _last; } set { _last = value; ViewState["Last"] = _last; } } #endregion #region事件 ///<summary> ///当由类实现时，使服务器控件能够处理将窗体发送到服务器时引发的事件。 ///</summary> ///<param name="e">所传递的参数</param> public void RaisePostBackEvent(string e) { //当发生回送的时候改变控件当前索引 if(e=="top") { Pageindex = 0; CurrentPages = 0 ; } else if(e=="last") { Pageindex = (Count+Pagesize-1)/Pagesize -1; CurrentPages = ((Count+Pagesize-1)/Pagesize+Pages-1)/ Pages -1; if(Pageindex<0) { Pageindex=0; } if(CurrentPages<0) { CurrentPages=0; } } else if(e=="pre") { if(Pageindex>0) { Pageindex--; if(Pageindex<CurrentPages*Pages && Pageindex>0) { CurrentPages--; } } } else if(e=="next") { if(Pageindex<(Count+Pagesize-1)/Pagesize -1) { Pageindex++; if(Pageindex>(CurrentPages+1)*Pages-1 && Pageindex<Count-1) { CurrentPages++; } } } else if(e=="pres") { Pageindex -= Pages; if(Pageindex<0) { Pageindex = 0; } if(Pageindex<CurrentPages*Pages && Pageindex>0) { CurrentPages--; } } else if(e=="nexts") { Pageindex += Pages; if(Pageindex>(Count+Pagesize-1)/Pagesize -1) { Pageindex = (Count+Pagesize-1)/Pagesize -1; } if(Pageindex>(CurrentPages+1)*Pages-1 && Pageindex<Count-1) { CurrentPages++; } } else { Pageindex = int.Parse(e.ToString()); } //发生回送事件时引发OnPageIndexChange事件 OnPageIndexChange(System.EventArgs.Empty); } ///<summary> ///当由类实现时，为 ASP.NET 服务器控件处理回发数据。 ///</summary> ///<param name="postDataKey">数据集合元素索引</param> ///<param name="values">string 的排序集合</param> ///<returns></returns> public bool LoadPostData(string postDataKey, NameValueCollection values) { //Pageindex = Int32.Parse(values[this.UniqueID].Split('|')[0]); //CurrentPages = Int32.Parse(values[this.UniqueID].Split('|')[1]); return false; } ///<summary> ///当由类实现时，用信号要求服务器控件对象通知 ASP.NET 应用程序该控件的状态已更改。 ///</summary> public void RaisePostDataChangedEvent() { } ///<summary> ///当页面索引改变，触发委托 ///</summary> ///<param name="e"></param> protected void OnPageIndexChange(System.EventArgs e) { //委托给加载控件页的PageIndexChange事件 if (PageIndexChange!=null) { PageIndexChange(this,e); } } ///<summary> ///预呈现 ///</summary> ///<param name="e"></param> protected override void OnPreRender(EventArgs e) { } #endregion #region输出 ///<summary> ///将此控件呈现给指定的输出参数。 ///</summary> ///<param name="output">要写出到的 HTML 编写器 </param> protected override void Render(HtmlTextWriter output) { string Pagestring = ""; //定义页码呈现字符串 string Text = null; //输出主结构字符串变量定义 int NO; //输出主结构 Text = "<div $style$>"; Text +="<a href =\"javascript:"+ Page.GetPostBackEventReference(this,"top")+ "\">"+First+"</a> "; Text +="<a href =\"javascript:"+ Page.GetPostBackEventReference(this,"pres")+ "\">"+Pres+"</a> "; Text +="<a href =\"javascript:"+ Page.GetPostBackEventReference(this,"pre")+ "\">"+Pre+"</a> "; Text +="$Pagestring$"; Text +="<a href =\"javascript:"+ Page.GetPostBackEventReference(this,"next")+ "\">"+Next+"</a> "; Text +="<a href =\"javascript:"+ Page.GetPostBackEventReference(this,"nexts")+ "\">"+Nexts+"</a> "; Text +="<a href =\"javascript:"+ Page.GetPostBackEventReference(this,"last")+ "\">"+Last+"</a> "; Text +="</div>";//<input type = hidden name ="+this.UniqueID+" value = "+this.Pageindex+"|"+this.CurrentPages+">"; //当页大小小于0时，还原为1，防止预算出现除0错误 if (!(Pagesize>0)) { Pagesize = 1; } //计算出总页数，并循环输出页码 for (int i = 0;i< Pages ;i++ ) { //获得页群内页码 NO = Pages * CurrentPages + i; if(NO<(Count+Pagesize-1)/Pagesize) { //判断页码是否为当前页 if (Pageindex != NO) { Pagestring += "<a href = \"javascript:"+ Page.GetPostBackEventReference(this,NO.ToString())+ "\">"+(NO+1).ToString()+"</a> "; } //如果不是，页面部分无连接 else { Pagestring += (NO+1).ToString()+" "; } } } if (!(Pagestring.Trim().Length>0)) { Pagestring = "1"; } //替换对齐属性 Text = Text.Replace("$style$",StyleString); //替换页码部分 Text = Text.Replace("$Pagestring$",Pagestring); output.Write(Text); } #endregion #region其他函数 ///<summary> ///判断是否为数字字符串 ///</summary> ///<param name="str">需验证的字符串</param> ///<returns>判断结果，符合条件为True,不符合条件为False</returns> public bool IsNumeric(string str) { //判断是否为空 if (str == null || str.Length==0) { return false; } //循环检查每个字符 foreach(char c in str) { if (!Char.IsNumber(c)) { return false; } } return true; } ///<summary> ///判断是否为数字字符串 ///</summary> ///<param name="obj">需验证的字符串</param> ///<returns>判断结果，符合条件为True,不符合条件为False</returns> public bool IsNumeric(object obj) { obj += ""; string str = obj.ToString(); //判断是否为空 if (str == null || str.Length==0) { return false; } //循环检查每个字符 foreach(char c in str) { if (!Char.IsNumber(c)) { return false; } } return true; } #endregion }} 
