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XP 风格的可拖动列、可排序、可改变宽度的DataGrid的例子

2006-12-05 15:54 477 查看
http://dotnet.aspx.cc/Exam/UltraGrid/UltraGrid.aspx




利用客户端脚本的优势,我们可以创建出可以拖动列,改变列宽度,显示、隐藏列的XP风格的 DataGrid,下面就是所有的代码。自己调试时请注意修改eMeng.Exam.UltraGrid路径。




查看例子




UltraGrid.aspx




<%@ Page language="c#" Codebehind="UltraGrid.aspx.cs" AutoEventWireup="false"


Inherits="eMeng.Exam.UltraGrid.UltraGrid" %>


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


<HTML>


<HEAD>


<title>XP 风格的可拖动列、可排序、可改变宽度的DataGrid的例子</title>


<META http-equiv="content-type" content="text/html; charset=gb2312">


<meta name="GENERATOR" Content="Microsoft Visual Studio 7.0">


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


<link rel="stylesheet" type="text/css" href="UltraGrid.css">


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


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


</HEAD>


<body MS_POSITIONING="GridLayout">


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


<div align="center" style="PADDING:5px">


<b> XP 风格的可拖动列、可排序、可改变宽度的DataGrid的例子。</b>


</div>


<div id="coolUltraGrid1" runat="server">


<div class="gridHead">


<div class="gridRow" id="gridRow" runat="server"></div>


</div>


<asp:Literal id="RowItem" runat="server"></asp:Literal>


</div>


</form>


</body>


</HTML>




UltraGrid.aspx.cs




using System;


using System.Collections;


using System.ComponentModel;


using System.Data;


using System.Data.OleDb;


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 eMeng.Exam.UltraGrid




...{




/**//// <summary>


/// UltraGrid 的摘要说明。本例子演示了如何创建可排序、可拖放、可调整宽度的XP风格的DataGrid。


/// 出自:【孟宪会之精彩世界】


/// </summary>


public class UltraGrid : System.Web.UI.Page




...{


protected System.Web.UI.HtmlControls.HtmlGenericControl gridRow;


protected System.Web.UI.WebControls.Literal RowItem;


protected System.Web.UI.HtmlControls.HtmlGenericControl coolUltraGrid1;


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




...{


// 在此处放置用户代码以初始化页面


coolUltraGrid1.Attributes.Add("class","coolUltraGrid");


coolUltraGrid1.Attributes.Add("style","WIDTH: 100%; HEIGHT: 400");


coolUltraGrid1.Attributes.Add("borderStyle","2");


coolUltraGrid1.Attributes.Add("altRowColor","oldLace");


coolUltraGrid1.Attributes.Add("selectionStyle","1");






/**//// 请根据你的数据库的设置,修改这里的数据库连接字符串和查询语句。其它不要修改。


OleDbConnection cn = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=c:/xxx.mdb");


cn.Open();


string sqlstring = "SELECT TOP 30 D.Title As 文档标题,D.CreateDate as 发布时间,S.Title AS 所属栏目 ";


sqlstring += "FROM Document D,Subject S WHERE D.pid=S.id ORDER BY D.CreateDate DESC";


OleDbCommand cmd = new OleDbCommand(sqlstring,cn);


OleDbDataReader dr;


dr=cmd.ExecuteReader(CommandBehavior.CloseConnection);




/**////


///组合表头


///


int FieldNumber = dr.FieldCount;


int ColWidth,Tmp = 0;


if(FieldNumber == 0)


Response.End();


ColWidth = (int)100/FieldNumber;


string TableHeader = "";


for(int i=0;i<FieldNumber;i++)




...{


if(dr.Read())




...{


if(i==FieldNumber-1)


TableHeader +="<span width='"+(100-Tmp).ToString()+"%'>"+dr.GetName(i).ToString()+"</span>";


else


TableHeader +="<span width='"+ColWidth.ToString()+"%'>"+dr.GetName(i).ToString()+"</span>";


Tmp+=ColWidth;


}


}


gridRow.InnerHtml=TableHeader;


int RowNumber = 1;


TableHeader = "<div class='gridBody'>";


while(dr.Read())




...{


TableHeader += "<div class='gridRow' id='row"+RowNumber.ToString()+"'>";


for(int i=0;i<FieldNumber;i++)




...{


TableHeader +="<span>"+dr.GetValue(i).ToString()+"</span>";


}


TableHeader += "</div>";


RowNumber++;


}


TableHeader += "</div>";


RowItem.Text=TableHeader;


cn.Close();


}




Web Form Designer generated code#region Web Form Designer generated code


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


}


}



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