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。
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"> <strong> XP 风格的可拖动列、可排序、可改变宽度的DataGrid的例子。</strong> </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(); } #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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