AlwaysVisibleControlExtender 控件 窗口一直存在

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="WebApplication1._Default" %>
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="cc1" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>无标题页</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:ScriptManager ID="ScriptManager1" runat="server">
        </asp:ScriptManager>
       
        <asp:DropDownList ID="DropDownList1" runat="server"  AutoPostBack="True"
            onselectedindexchanged="DropDownList1_SelectedIndexChanged">
        <asp:ListItem>Bottom</asp:ListItem>
        <asp:ListItem>Top</asp:ListItem>
        <asp:ListItem>Middle</asp:ListItem>
        </asp:DropDownList>
       
        <asp:DropDownList ID="DropDownList2"  runat="server" AutoPostBack="True"
            onselectedindexchanged="DropDownList2_SelectedIndexChanged1">
        <asp:ListItem>Right</asp:ListItem>
        <asp:ListItem>Center</asp:ListItem>
        <asp:ListItem>Left</asp:ListItem>
        </asp:DropDownList>
       
        <asp:UpdatePanel ID="UpdatePanel1" runat="server">
       
        <ContentTemplate>
       
            <asp:Panel ID="Panel1" runat="server" Height="300" Width="300" BackColor="red" BorderColor="2">当前时间:
                <%=System.DateTime.Now %></asp:Panel>
            <cc1:AlwaysVisibleControlExtender ID="AlwaysVisibleControlExtender1" runat="server"  TargetControlID="Panel1"  VerticalOffset="10" HorizontalSide="Right" VerticalSide="Bottom">
            </cc1:AlwaysVisibleControlExtender>
        </ContentTemplate>
        </asp:UpdatePanel>
       
    </div>
    </form>
</body>
</html>
 
 
 
 
using 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;
using AjaxControlToolkit;
namespace WebApplication1
{
    public partial class _Default : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
        }
        protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
        {
            string str = DropDownList1.Text;
            Object var = Enum.Parse(typeof(VerticalSide),str);
            AlwaysVisibleControlExtender1.VerticalSide = (VerticalSide)var;
        }

        protected void DropDownList2_SelectedIndexChanged1(object sender, EventArgs e)
        {
string str = DropDownList2.Text;
            Object var1 = Enum.Parse(typeof(HorizontalSide), str);
            AlwaysVisibleControlExtender1.HorizontalSide = (HorizontalSide)var1;
        }
    
    }
}
 
 
 
 
posted @ 2012-05-10 09:25  紫星儿  阅读(147)  评论(0编辑  收藏  举报