借首页发布,使用存储过程,分页用户控件,jQuery进行Ajax分页,比较复杂,但方便扩展。提供了源码demo下载,提供了演示例子。代码有很多不完善的地方,希望各位提出。
效果图:http://www.ukei.cn/ob1.html
代码这里下载/Files/genson/AjaxPager.rar
l准备工作:
- jQuery,到http://www.jquery.com下载。
- 分页的存储过程 准备工作:http://www.cnblogs.com/genson/archive/2006/01/17/318882.html 这里可以找到。
- 分页用户控件,首先我们先写一个基类继承 UserControl,主要是分页的属性和一个静态方法,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.Collections;
using System.Text;
using System.Collections.Specialized;



/**//// <summary>
/// Summary description for UserControlBase
/// </summary>
public abstract class DataUserControlBase : UserControl


{
public int recordCount = 0;


public abstract void BindData();

protected override void OnLoad(EventArgs e)

{
string p = Request.QueryString["p"];
if (!string.IsNullOrEmpty(p))

{
PageIndex = Convert.ToInt32(p);

}
else

{
PageIndex = 1;
}

BindData();

if (!Page.ClientScript.IsClientScriptIncludeRegistered(typeof(Page), "PagerCheck"))

{
Page.ClientScript.RegisterClientScriptInclude(typeof(Page), "PagerCheck", ResolveClientUrl("~/js/PagerCheck.js"));
}

base.OnLoad(e);
}


private object[] urlVariantParameters;

/**//// <summary>
/// 页面传递多个参数的时候使用,这个要跟UrlParamers替换的数组一致,当参数只有一个的时候,可以省略
/// </summary>
public object[] UrlVariantParameters

{

get
{ return urlVariantParameters; }

set
{ urlVariantParameters = value; }
}

private string strWhere = string.Empty;
public string StrWhere

{
get

{
return strWhere;
}
set

{
strWhere = value;
}
}

private bool orderType = true;
public bool OrderType

{

get
{ return orderType; }

set
{ orderType = value; }
}

private string fldName = "DateCreated";
public string FldName

{

get
{ return fldName; }

set
{ fldName = value; }
}

private int _recordCount;
public virtual int RecordCount

{
get

{
return _recordCount;
}
set

{
_recordCount = value;
}
}


private int pageIndex = 1;
public virtual int PageIndex

{
get

{
return pageIndex;
}
set

{
pageIndex = value;
}
}



public virtual int PageCount

{
get

{
return RecordCount % PageSize == 0 ? RecordCount / PageSize : RecordCount / PageSize + 1;
}
}


private string urlParamers;

/**//// <summary>
/// 指通过页面传递参数的地址:如UrlParamers = "~/ob{0}.html";
/// </summary>
public virtual string UrlParamers

{
get

{
return urlParamers;
}
set

{
urlParamers = value;
}
}


private int pageSize = 10;
public virtual int PageSize

{
get

{
return pageSize;
}
set

{
pageSize = value;
}
}

private bool ajaxEnabled = true;

/**//// <summary>
/// 是否启用Ajax效果分页,默认启用
/// </summary>
public virtual bool AjaxEnabled

{
get

{
return ajaxEnabled;
}
set

{
ajaxEnabled = value;
}
}


public static void SetProperty(DataUserControlBase pager, DataUserControlBase b)

{
b.RecordCount = b.recordCount;
pager.RecordCount = b.RecordCount;
pager.PageSize = b.PageSize;
pager.PageIndex = b.PageIndex;
pager.UrlParamers = b.UrlParamers;
pager.AjaxEnabled = b.AjaxEnabled;
pager.UrlVariantParameters = b.UrlVariantParameters;
}



}

- 然后我们再新增一个ascx文件,叫Pager.ascx吧!继承上面定义的DataUserControlBase,代码如下。

<%
@ Control Language="C#" AutoEventWireup="true" CodeFile="Pager.ascx.cs" Inherits="UC_Pager" %>
<!--这里开始输出页码条-->
<DIV class="pagebar">
<asp:PlaceHolder runat=server ID=ph />
</DIV>
<!--这里结束页码的输出-->






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 Obj.DAL;

public partial class UC_Pager : DataUserControlBase


{
protected void Page_Load(object sender, EventArgs e)

{
GeneratePagerLink(ph);
}


public virtual void GeneratePagerLink(Control container)

{
int max = PagerHelper.MaxPageIndex(PageIndex);
int min = PagerHelper.MinPageIndex(PageIndex);

//if (string.IsNullOrEmpty(VirtualCurrentPageUrl))
//{
// throw new Exception("VirtualCurrentPageUrl is null");
//}
if (PageCount <= max) max = PageCount;

if (PageCount == 1) return;


if (min != 1) //Prev

{
HyperLink hyprev = new HyperLink();
hyprev.Text = "<< ";
if (UrlVariantParameters == null)

{
hyprev.NavigateUrl = string.Format(UrlParamers, min - 1);
}
else

{
UrlVariantParameters[0] = min - 1;
hyprev.NavigateUrl = string.Format(UrlParamers, UrlVariantParameters);
}
ConvertAnchor(hyprev, min-1);
container.Controls.Add(hyprev);
}

for (int i = min; i <= max; i++)

{
HyperLink hy = new HyperLink();
if (UrlVariantParameters == null)

{
hy.NavigateUrl = string.Format(UrlParamers, i);
}
else

{
UrlVariantParameters[0] = i;
hy.NavigateUrl = string.Format(UrlParamers, UrlVariantParameters);
}
hy.Text = i.ToString();
if (PageIndex == i)
hy.NavigateUrl = string.Empty;
else
ConvertAnchor(hy, i);
container.Controls.Add(hy);
}

if (PageCount > max) //Next

{
HyperLink hynext = new HyperLink();
hynext.Text = " >>";
if (UrlVariantParameters == null)

{
hynext.NavigateUrl = string.Format(UrlParamers, max + 1);
}
else

{
UrlVariantParameters[0] = max + 1;
hynext.NavigateUrl = string.Format(UrlParamers, UrlVariantParameters);
}
ConvertAnchor(hynext,max+1);
container.Controls.Add(hynext);
}
}



private void ConvertAnchor(HyperLink hy,int p)

{
if (AjaxEnabled)

{
hy.Attributes.Add("onclick", hy.NavigateUrl);
hy.NavigateUrl = "#" + hy.NavigateUrl;
}
}


public virtual Control Container

{
get

{
return ph;
}
}



public override void BindData()

{
}

protected override void OnPreRender(EventArgs e)

{
if (RecordCount == 0)

{
//Container.Controls.Add(new LiteralControl("<p style=text-align:center;>没有数据</p>"));
}
base.OnPreRender(e);
}
}

当然,少不了分页帮助类PagerHelper,代码如下:这里使用了MicroSoft.Application.Data那个SqlHelper.cs文件


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 Microsoft.ApplicationBlocks.Data;
namespace Obj.DAL


{

/**//// <summary>
/// Summary description for PageHelper
/// </summary>


/**//**/

/**//// <summary>
/// 分页类PagerHelper 的摘要说明。
/// </summary>
public class PagerHelper

{
private string connectionString;


/**//// <summary>
/// 得到记录集的构造函数
/// </summary>
/// <param name="tblname"></param>
/// <param name="sortname"></param>
/// <param name="docount"></param>
/// <param name="connectionString"></param>
public PagerHelper(string tblname, string sortname, bool docount, string connectionString)

{
this.tblName = tblname;
this.fldName = sortname;
this.connectionString = connectionString;
this.docount = docount;
}


/**//// <summary>
/// 所有参数都有
/// </summary>
/// <param name="tblname"></param>
/// <param name="docount"></param>
/// <param name="strGetFields"></param>
/// <param name="fldName"></param>
/// <param name="pagesize"></param>
/// <param name="pageindex"></param>
/// <param name="ordertype"></param>
/// <param name="strwhere"></param>
/// <param name="connectionString"></param>
public PagerHelper(string tblname, bool docount,
string strGetFields, string fldName, int pagesize,
int pageindex, bool ordertype, string strwhere, string connectionString
)

{
this.tblName = tblname;
this.docount = docount;
this.strGetFields = strGetFields;
this.fldName = fldName;
this.pagesize = pagesize;
this.pageindex = pageindex;
this.ordertype = ordertype;
this.strwhere = strwhere;
this.connectionString = connectionString;

}



/**//**/

/**//// <summary>
/// 得到记录集的构造函数
/// </summary>
/// <param name="tblname"></param>
/// <param name="strwhere"></param>
/// <param name="connectionString"></param>
public PagerHelper(string tblname, string strwhere, string connectionString)

{
this.tblName = tblname;
this.strwhere = strwhere;
this.docount = true;
this.connectionString = connectionString;
}

private string tblName;
public string TblName

{

get
{ return tblName; }

set
{ tblName = value; }
}

private string strGetFields = "*";
public string StrGetFields

{

get
{ return strGetFields; }

set
{ strGetFields = value; }
}

private string fldName = string.Empty;
public string FldName

{

get
{ return fldName; }

set
{ fldName = value; }
}



private int pagesize = 10;
public int PageSize

{

get
{ return pagesize; }

set
{ pagesize = value; }
}

private int pageindex = 1;
public int PageIndex

{

get
{ return pageindex; }

set
{ pageindex = value; }
}


private bool docount = false;
public bool DoCount

{

get
{ return docount; }

set
{ docount = value; }
}

private bool ordertype = false;
public bool OrderType

{

get
{ return ordertype; }

set
{ ordertype = value; }
}

private string strwhere = string.Empty;
public string StrWhere

{

get
{ return strwhere; }

set
{ strwhere = value; }
}






public IDataReader GetDataReader()

{

if (this.docount)

{
throw new ArgumentException("要返回记录集,DoCount属性一定为false");
}



// System.Web.HttpContext.Current.Response.Write(pageindex);

return SqlHelper.ExecuteReader(connectionString, CommandType.StoredProcedure, "Pagination",
new SqlParameter("@tblName", this.tblName),
new SqlParameter("@strGetFields", this.strGetFields),
new SqlParameter("@fldName", this.fldName),
new SqlParameter("@PageSize", this.pagesize),
new SqlParameter("@PageIndex", this.pageindex),
new SqlParameter("@doCount", this.docount),
new SqlParameter("@OrderType", this.ordertype),
new SqlParameter("@strWhere", this.strwhere)
);
}

public DataSet GetDataSet()

{
if (this.docount)

{
throw new ArgumentException("要返回记录集,DoCount属性一定为false");
}

return SqlHelper.ExecuteDataset(connectionString, CommandType.StoredProcedure, "Pagination",
new SqlParameter("@tblName", this.tblName),
new SqlParameter("@strGetFields", this.strGetFields),
new SqlParameter("@fldName", this.fldName),
new SqlParameter("@PageSize", this.pagesize),
new SqlParameter("@PageIndex", this.pageindex),
new SqlParameter("@doCount", this.docount),
new SqlParameter("@OrderType", this.ordertype),
new SqlParameter("@strWhere", this.strwhere)
);
}


public int GetCount()

{
if (!this.docount)

{
throw new ArgumentException("要返回总数统计,DoCount属性一定为true");
}



return (int)SqlHelper.ExecuteScalar(connectionString, CommandType.StoredProcedure, "Pagination",
new SqlParameter("@tblName", this.tblName),
new SqlParameter("@strGetFields", this.strGetFields),
new SqlParameter("@fldName", this.fldName),
new SqlParameter("@PageSize", this.pagesize),
new SqlParameter("@PageIndex", this.pageindex),
new SqlParameter("@doCount", this.docount),
new SqlParameter("@OrderType", this.ordertype),
new SqlParameter("@strWhere", this.strwhere)
);
}


public static int MaxPageIndex(int pageindex)

{
if (pageindex < 10)
return 10;
string numstr = pageindex.ToString();
numstr = numstr.Substring(0, numstr.Length - 1);
return Convert.ToInt32(numstr + "0") + 10;

}

public static int MinPageIndex(int pageindex)

{
if (pageindex < 10)
return 1;
string numstr = pageindex.ToString();
numstr = numstr.Substring(0, numstr.Length - 1);
return Convert.ToInt32(numstr + "0");
}

}

}
这一切准备好之后,我们就可以对数据进行分页程序开发了。 这篇文章也许写得不是很好,同样代码也有很多可以修改的地方,代码我已经测试过,兼容ie和ff2.0。如果有问题,欢迎回帖,也可以
发信息给我。