Robin's Space

一個簡單的分頁控件

using System;

using System.Web;

using System.Web.UI.WebControls;

using System.Text;

using System.Drawing;

using System.Web.UI.HtmlControls;

using System.Web.UI;

using System.ComponentModel;

namespace KuKu

{

/// <summary>

/// Summary description for KuKuPager.

/// </summary>

public class KuKuPager:WebControl

{

//背景圖片

string _backGroud;

//頁查詢參數

string _pageQurey;

//首頁編號

int _firstPage=1;

//總共的記錄數目

int _totalRecord;

//頁面大小

int _pageSize;

int _pageIndex;

int _totalPage;

public KuKuPager()

{

}

protected override void OnLoad(EventArgs e)

{

_pageIndex=_firstPage;

if(HttpContext.Current.Request.QueryString[_pageQurey]!=null)

{

_pageIndex= Convert.ToInt32(HttpContext.Current.Request.QueryString[_pageQurey]);

}

if(_pageSize!=0)

{

if(_totalRecord%_pageSize==0)

{

_totalPage= _totalRecord/_pageSize;

}

else

{

_totalPage= _totalRecord/_pageSize+1;

}

protected override void Render(HtmlTextWriter writer)

{

string first = "9";

string previous= "7";

string next = "8";

string last = ":";

StringBuilder sb =new StringBuilder();

sb.Append("<div style='float:left'>");

sb.Append("");

if(PageIndex==1)

{

sb.Append(first + " " + previous + " ");

}

else

{

sb.Append("<a href='"+BuildNewPageUrl(this.FirstPageNum)+"'>" + first + "</a> ");

sb.Append("<a href='" + BuildNewPageUrl(this.PageIndex-1)+ "'>" + previous + "</a> ");

}

int j=1;

if(PageIndex-5>=1)

{

j=PageIndex-5;

}

int k=TotalPage;

if(PageIndex+5<=TotalPage)

{

k=PageIndex+5;

}

if(j>1)

{

sb.Append(" <a href='" +BuildNewPageUrl(this.FirstPageNum)+"'>1</a>

");

}

for(int i=j;i<k+1;i++)

{

if(PageIndex==i)

{

sb.Append("" + i + " ");

}

else

{

sb.Append("<a href='" +BuildNewPageUrl(i-this.FirstPageNum+1)+"'>" + i + "</a> ");

}

if(TotalPage>k)

{

sb.Append("

<a href='" + BuildNewPageUrl(this.TotalPage)+"'>" + TotalPage + "</a> ");

}

if(PageIndex==TotalPage)

{

sb.Append("" + next + " " + last);

}

else

{

sb.Append("<a href='" +BuildNewPageUrl(this.PageIndex+1)+"'>" + next + "</a> ");

sb.Append("<a href='" + BuildNewPageUrl(this.TotalPage)+"'>" + last + "</a>");

}

sb.Append("</div>");

sb.Append("<div style='float:right'>");

sb.Append("[總記錄數:" + TotalRecord + "]");

sb.Append("[每頁:" + PageSize + "]");

sb.Append("[總頁數:" + TotalPage + "]");

sb.Append("[當前為第"+PageIndex+"頁]</div>");

writer.WriteLine(sb.ToString());

}

/// <summary>

/// 當前頁面的路徑

/// </summary>

string BuildNewPageUrl(int page)

{

HttpRequest request=HttpContext.Current.Request;

//頁面沒有參數

if(request.QueryString.Count==0)

{

return request.Url.PathAndQuery+"?"+this.PageQuery+"="+page;

}

//如果當前頁面沒有頁面查詢參數，說明為第一頁

else if(request.QueryString[this.PageQuery]==null)

{

return request.Url.PathAndQuery+"&"+this.PageQuery+"="+page;

}

else

{

return request.Url.PathAndQuery.Replace(this.PageQuery+"="+request.QueryString[this.PageQuery],this.PageQuery+"="+page.ToString());

}

/// <summary>

/// 獲取或者設置KuKuPager的背景圖片

/// </summary>

public string BackGround

{

get

{

return _backGroud;

}

set

{

_backGroud=value;

}

/// <summary>

/// 獲取或者設置KuKuPager的頁查詢參數

/// </summary>

public string PageQuery

{

get

{

return _pageQurey;

}

set

{

_pageQurey=value;

}

/// <summary>

/// 獲取或者設置KuKuPager首頁編號

/// </summary>

public int FirstPageNum

{

get

{

return _firstPage;

}

set

{

_firstPage=value;

}

/// <summary>

/// 獲取或者設置KuKuPager頁面大小

/// </summary>

public int PageSize

{

get

{

return _pageSize;

}

set

{

_pageSize=value;

}

/// <summary>

/// 獲取或者設置KuKuPager總共的記錄數目

/// </summary>

public int TotalRecord

{

get

{

return _totalRecord;

}

set

{

_totalRecord=value;

}

public int PageIndex

{

get

{

return _pageIndex;

}

/// <summary>

/// 獲取或者設置KuKuPager總頁數

/// </summary>

public int TotalPage

{

get

{

return _totalPage;

}

posted @ 2006-03-27 08:30 Robin Zhang 閱讀(468) 評論(0) 收藏舉報

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Robin's Space

一個簡單的分頁控件

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