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管理
2009年7月27日
Code<%
@ Control Language="C#" AutoEventWireup="true" CodeBehind="RepeaterDemo.ascx.cs" Inherits="ApplicationDemos.RepeaterDemo" %>
<div> <asp:DataList ID="Repeater1" runat="server" onitemcommand="Repeater1_ItemCommand" onitemcreated="Repeater1_ItemCreated" onprerender="Repeater1_PreRender"> <ItemTemplate> <table> <tr> <td> <table width="100%"> <tr> <td width="210">Condition </td> <td><span style="margin-right:1px">:</span> <asp:DropDownList ID="DdlCondofLicen" runat="server" Height="17px" Width="160px" AutoPostBack="True" OnSelectedIndexChanged="DdlCondofLicen_SelectedIndexChanged"> </asp:DropDownList> <asp:LinkButton ID="LbtnRemove" runat="server" CommandName="Remove">Remove</asp:LinkButton> </td> </tr> <tr> <td>Description </td> <td>: <asp:Label ID="LbDescription" runat="server"></asp:Label></td> </tr> </table> </td> </tr> </table> </ItemTemplate> </asp:DataList></div><asp:Button ID="BtnAdd" runat="server" onclick="BtnAdd_Click" Text="Add" />Codeusing System;using System.Collections;using System.Configuration;using System.Data;using System.Linq;using System.Web;using System.Web.Security;using System.Web.UI;using System.Web.UI.HtmlControls;using System.Web.UI.WebControls;using System.Web.UI.WebControls.WebParts;using System.Xml.Linq;namespace ApplicationDemos{
public partial class RepeaterDemo : System.Web.UI.UserControl
{ ArrayList items = new ArrayList(); protected void Page_Load(object sender, EventArgs e) { if(!IsPostBack) BindRp();
} protected void BtnAdd_Click(object sender, EventArgs e) { for (int i = 0; i < this.Repeater1.Items.Count + 1; i++) { string li = i.ToString(); items.Add(li); } Items = items; BindRp(); } private void BindRp() { Repeater1.DataSource = (ArrayList)Items; Repeater1.DataBind(); } protected void Repeater1_ItemCommand(object source, DataListCommandEventArgs e) { if (e.CommandName == "Remove") { Items.RemoveAt(e.Item.ItemIndex); } BindRp(); } public ArrayList Items { get { return (ArrayList)ViewState["items"]; } set { ViewState["items"] = items; } } private ArrayList CreateAL() { string temp1 = "temp1"; string temp2 = "temp2"; string temp3 = "temp3"; ArrayList al = new ArrayList(); al.Add(temp1); al.Add(temp2); al.Add(temp3); return al; } protected void Repeater1_ItemCreated(object sender, DataListItemEventArgs e) { DropDownList ddl = (DropDownList)e.Item.FindControl("DdlCondofLicen"); ddl.DataSource = CreateAL(); ddl.DataBind(); } protected void DdlCondofLicen_SelectedIndexChanged(object sender,EventArgs e) { ((Label)((DropDownList)sender).NamingContainer.FindControl("LbDescription")).Text = ((DropDownList)sender).SelectedItem.Text.Trim(); } protected void Repeater1_PreRender(object sender, EventArgs e) { } }
}