白分求有价值的Repeater的代码和精辟的介绍，很快结帖子！！！！！

http://dotnet.aspx.cc/ShowDetail.aspx?id=54F4C732-AAE2-4135-FB1B-7B4B613BAA33

http://dotnet.aspx.cc/ShowDetail.aspx?id=D5C6E29D-99F5-44E8-4FED-75AF892A53CB

IsPostBack参考
http://msdn.microsoft.com/library/chs/default.asp?url=/library/CHS/cpref/html/frlrfsystemwebuiusercontrolclassispostbacktopic.asp

http://support.microsoft.com/default.aspx?scid=kb;EN-US;326338#1
Repeater控件嵌套的使用方法(当然也包含普通使用方法了)
if (!this.IsPostBack)
{
//
}
表示页面是第一次载入,此时没有接受过任何的post过来的数据

IsPostBack
指示是正为响应客户端回发而加载用户控件，还是正第一次加载和访问用户控件。

在首次登陆一个页面的时候，如果页面在第一次加载时就有一些绑定的数据呈现，那么如果此页面又有对数据的其他操作，比如删除，修改等，那么一定要在Pageload 事件中采用 if (!Page.Ispostback) { 数据绑定} 因为在每次网页提交给服务器时，PageLoad事件都会重新触发，导致反复绑定初始值，然后才进入我们需要的CLICK事件等，这样将使得一些重要信息，比如存储的session值丢失或错乱。当我们加入 if (!Page.Ispostback)，它表明了只有网页在第一次加载时才执行的数据绑定，当我们单击一个修改或删除按钮，网页提交到服务器，我们通过断点调试可看到，当执行到PageLoad事件时，开始判断 if (!Page.Ispostback)，发现并非首次加载此页面，程序自动转到修改或删除的CLICK事件中了。有效的控制了程序的运行。

IsPostBack
指示是正为响应客户端回发而加载用户控件，还是正第一次加载和访问用户控件。

<%@ Page language="c#" Codebehind="ICPlanEdit.aspx.cs" AutoEventWireup="false" Inherits="ICAudit.ICPlanEdit" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >
<HTML>
<HEAD>
<title>ICPlan</title>
<meta content="Microsoft Visual Studio .NET 7.1" name="GENERATOR">
<meta content="C#" name="CODE_LANGUAGE">
<meta content="JavaScript" name="vs_defaultClientScript">
<meta content="http://schemas.microsoft.com/intellisense/ie5" name="vs_targetSchema">
<LINK href="../css/style.css" type="text/css" rel="stylesheet">
<script language="javascript" src="../js/formcheck.js"></script>
</HEAD>
<body MS_POSITIONING="GridLayout">
<form id="Form1" method="post" runat="server">
<table style="WIDTH: 739px; HEIGHT: 366px" align="center" border="0">
<TBODY>
<tr>
<td colspan="5" align="center"><IMG src="../images/iczhbj.gif" border="0"></td>
</tr>
<tr>
<td align="left">
计划描述信息:<asp:TextBox id="PlanDescript" runat="server" MaxLength="50"></asp:TextBox>
</td>
</tr>
<tr>
<td>编制单位:大连市信息产业局
</td>
</tr>
<tr>
<td valign="top" style="HEIGHT: 186px">
<asp:Repeater id="RepeaterICPlan" runat="server">
<HeaderTemplate>
<table width="100%" border="1" cellpadding="0" cellspacing="0" bordercolor="#000000" bordercolorlight="#003366"
bordercolordark="#FFFFFF">
<tr>
<td style="WIDTH: 33px">
编号
</td>
<td style="WIDTH: 61px">
单位<br>
名称
</td>
<td style="WIDTH: 51px">
所有制<br>
性质
</td>
<td style="WIDTH: 61px">
主营业务及重点产品
</td>
<td style="WIDTH: 56px">
注册资本
</td>
<td style="WIDTH: 53px">
项目名称
</td>
<td style="WIDTH: 53px">
计划总投<br>
资额(万元)
</td>
<td>
实际投资<br>
额(万元)
</td>
<td>
申请金额<br>
(万元)
</td>
<td>
计划金额<br>
(万元)
</td>
<td>
批准金额<br>
(万元)
</td>
</tr>
</HeaderTemplate>
<ItemTemplate>
<tr>
<td>
<%# DataBinder.Eval(Container.DataItem,"projectNo")%>
 
</td>
<td>
<%# DataBinder.Eval(Container.DataItem,"projectunit")%>
 
</td>
<td>
<%# DataBinder.Eval(Container.DataItem,"ownercode")%>
 
</td>
<td style="WIDTH: 88px">
<%# DataBinder.Eval(Container.DataItem,"mainbussiness")%>
 
</td>
<td>
<%# DataBinder.Eval(Container.DataItem,"registmoney")%>
 
</td>
<td>
<%# DataBinder.Eval(Container.DataItem,"projectname")%>
 
</td>
<td>
<%# DataBinder.Eval(Container.DataItem,"jhztzZj")%>
 
</td>
<td>
<%# DataBinder.Eval(Container.DataItem,"xmytzZj")%>
 
</td>
<td>
<%# DataBinder.Eval(Container.DataItem,"bnysqzxzjZj")%>
 
</td>
<td>
<%# DataBinder.Eval(Container.DataItem,"PlanNumber")%>
 
</td>
<td>
<asp:TextBox Runat=server ID="allowMoney" text='<%# DataBinder.Eval(Container.DataItem,"AllowMoney")%>' Width=50>
</asp:TextBox>
<asp:RequiredFieldValidator id="NumRequired" runat="server" ControlToValidate="allowMoney" ErrorMessage="* 批准金额不可为空"
Display="Dynamic">
*
</asp:RequiredFieldValidator>
<asp:CompareValidator id="valdeclaredate" runat="server" ControlToValidate="allowMoney" ValueToCompare="0"
Operator="GreaterThan" Type="double" ErrorMessage="* 批准金额必须输入大于0的数字！" Display="dynamic">
*
</asp:CompareValidator>
<input type=hidden id="ApplyId" runat=server value='<%# DataBinder.Eval(Container.DataItem,"ID")%>' NAME="ApplyId">
</td>
</tr>
</ItemTemplate>
<FooterTemplate>
<tr>
<td> 
</td>
<td align="center">
合计
</td>
<td>--
</td>
<td>--
</td>
<td>--
</td>
<td>--
</td>
<td>--
</td>
<td>--
</td>
<td><asp:label id="NeedNum" runat="server"></asp:label> 
</td>
<td><asp:label id="PlanNum" runat="server"></asp:label> 
</td>
<td>--
</td>
</tr>
<tr>
<td colspan="11">
          
           制表人：
<asp:Label id="Oper" runat="server">Label</asp:Label>
          
          
          
          
          
          
           制表时间：
<asp:Label id="Finishtime" runat="server">Labe2</asp:Label>
</td>
</tr>
</table>
</FooterTemplate> </asp:Repeater></TD></TR>
<tr>
<td align="center">
<asp:ImageButton id="ImageButton1" runat="server" ImageUrl="../images/queding.gif" CssClass="ImgButton"></asp:ImageButton>
<asp:ImageButton id="ImageButton2" runat="server" ImageUrl="../images/quxiao.gif" CssClass="ImgButton"></asp:ImageButton>
</td>
</tr>
</TBODY></TABLE>
<asp:ValidationSummary id="ValidationSummary1" runat="server" ShowMessageBox="True" ShowSummary="False"
DisplayMode="List"></asp:ValidationSummary></form>
<script language="javascript">
function check()
{
if(!checkEmpty("PlanDescript","计划描述信息"))
{
return false;
}
return true;
}
</script>
</body>
</HTML>

using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using System.Data.OleDb;
using dhc.dataBase;
using dhc.com;
using dhc.log;
using BPOLib;
using BPWBLib;namespace ICAudit
{
/// <summary>
/// ICPlan 的摘要说明。
/// </summary>
public class ICPlanEdit : System.Web.UI.Page
{
protected System.Web.UI.WebControls.ImageButton ImageButton1;
protected System.Web.UI.WebControls.ImageButton ImageButton2;
protected System.Web.UI.WebControls.TextBox TextBox1;
protected System.Web.UI.WebControls.TextBox PlanDescript;
protected System.Web.UI.WebControls.ValidationSummary ValidationSummary1;
protected System.Web.UI.WebControls.Repeater RepeaterICPlan;

private void Page_Load(object sender, System.EventArgs e)
{
if (!this.IsPostBack)
{
initGrid();
ImageButton1.Attributes.Add("onclick","if (!check()) return false;");
}
}
private bool initGrid()
{
dbConn conn = new dbConn();
try
{
conn.openDB("Conn");
string strPlanId = Request["Id"];
string strSql="select * from IcPlan where Id = '"+strPlanId+"'";

DataSet ds = conn.getDataSet(strSql,"Plan");
if (ds.Tables["Plan"].Rows.Count > 0)
{
DataRow row = ds.Tables["Plan"].Rows[0];
PlanDescript.Text = row["Descript"].ToString();

}
strSql = "select a.ID,a.projectNo,a.projectname,a.projectunit,a.registmoney,a.mainbussiness,a.ownercode,a.jhztzZj,a.xmytzZj,a.bnysqzxzjZj,a.AllowMoney,b.PlanNumber from icDeclare a,eProcessDB.dbo.XXCYJ_IC b where PlanId = '"+strPlanId+"' and a.ID=b.ApplyId";
OleDbDataReader dbRead= conn.getDataReader(strSql);
RepeaterICPlan.DataSource = dbRead;
RepeaterICPlan.DataBind();
dbRead.Close();
return true;
}
catch
{
Response.Write("发生错误!");
return false;
}
finally
{
conn.closeConn();
}

}
#region Web 窗体设计器生成的代码
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.RepeaterICPlan.ItemDataBound += new System.Web.UI.WebControls.RepeaterItemEventHandler(this.RepeaterICPlan_ItemDataBound);
this.ImageButton1.Click += new System.Web.UI.ImageClickEventHandler(this.ImageButton1_Click);
this.Load += new System.EventHandler(this.Page_Load); }
#endregion private void ImageButton1_Click(object sender, System.Web.UI.ImageClickEventArgs e)
{
dbConn conn = new dbConn();
try
{
conn.openDB("Conn");
conn.beginTrans(); string strPlanId = Request["Id"];
string strSql="select * from IcPlan where Id = '"+strPlanId+"'";
DataSet ds = conn.getDataSet(strSql,"Plan");
if (ds.Tables["Plan"].Rows.Count > 0)
{
DataRow row = ds.Tables["Plan"].Rows[0];
row["Descript"] =  PlanDescript.Text;
                    row["Oper"]=Session["NAME"].ToString();
row["Finishtime"]=publicFunction.getStandardDate(DateTime.Now.ToString());
conn.UpdateDataset("Plan",1);
} int iCount = RepeaterICPlan.Items.Count;
for (int i=0;i<iCount;i++)
{
HtmlInputHidden hihID = (HtmlInputHidden)RepeaterICPlan.Items[i].FindControl("ApplyId");
TextBox tbAllowMoney = (TextBox)RepeaterICPlan.Items[i].FindControl("allowMoney");
strSql = "select ID,AllowMoney,PlanId from icDeclare where ID = '"+hihID.Value+"'";
ds = conn.getDataSet(strSql,"IC");
if (ds.Tables["IC"].Rows.Count > 0)
{
DataRow row = ds.Tables["IC"].Rows[0];
row["AllowMoney"] = tbAllowMoney.Text;
conn.UpdateDataset("IC",1);
}
}
conn.commitTrans();
Response.Write("<script language='javascript'>");
Response.Write("alert('信息成功保存');");
Response.Write("window.location.replace('IcPlanList.aspx');");
Response.Write("</script>");
}
catch
{
conn.rollbackTrans();
Response.Write("发生错误!");
}
finally
{
conn.closeConn();
}
} private void RepeaterICPlan_ItemDataBound(object sender, System.Web.UI.WebControls.RepeaterItemEventArgs e)
{
if (e.Item.ItemType == ListItemType.Footer)
{
Label labOper = (Label)e.Item.FindControl("Oper");
labOper.Text = Session["NAME"].ToString(); Label labFinishtime = (Label)e.Item.FindControl("Finishtime");
labFinishtime.Text = publicFunction.getStandardDate(DateTime.Now.ToString());
dbConn conn= new dbConn();
try
{
conn.openDB("Conn");
string strPlanId = Request["Id"];
string strsql="select sum(a.bnysqzxzjZj) NeedNum,sum(b.PlanNumber) PlanNum from icDeclare a,eProcessDB.dbo.XXCYJ_IC b where PlanId = '"+strPlanId+"' and a.ID=b.ApplyId";

OleDbDataReader dbReader = conn.getDataReader(strsql);
if (dbReader.Read())
{
Label labNeedNum = (Label)e.Item.FindControl("NeedNum");
labNeedNum.Text = dbReader["NeedNum"].ToString(); Label labPlanNum = (Label)e.Item.FindControl("PlanNum");
labPlanNum.Text = dbReader["PlanNum"].ToString();
}
}
catch
{
Response.Write("发生错误!");
return;
}
finally
{
conn.closeConn();
}
}
}
}
}

第一个是aspx文件第二个是cs文件是很好的例子

Page.Ispostback返回一个Bool型的值，如果是第一次开打网面返回false如果是控件行为返的页面返回true值！！

调试易

白分求有价值的Repeater的代码和精辟的介绍，很快结帖子！！！！！

解决方案 »