如何动态显示警报消息（modalpopup）

本文介绍了如何动态显示警报消息（modalpopup）的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

代码背后：

Code behind:

protected void Page_Load(object sender, EventArgs e)
    {

    }

    protected void btn_Click(object sender, EventArgs e)
    {


            WarningModal.Show();
            lblWarning.Text = "This is a popup warning";

    }

Aspx文件：

Aspx file:

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="admin_webforms_BeforeLogin_Default" %>
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="rvc" %>

<!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></title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:ScriptManager ID="ScriptManager1" runat="server">
        </asp:ScriptManager>
        <asp:Button ID="btn" runat="server" onclick="btn_Click" />

<rvc:ModalPopupExtender ID="WarningModal" runat="server"

TargetControlID="btn"



CancelControlID="btnWarning"

DropShadow="true"

PopupControlID="pnlIssues" >
</rvc:ModalPopupExtender>

<!-- Panel -->
<asp:Panel ID="pnlIssues" runat="server"

BorderColor="Black" BorderStyle="Outset"

BorderWidth="2" BackColor="Wheat" Width="500px"  Height="300px">
   <center>
       <h2 class="style2">
           Information</h2>
       <p>

          <asp:Label ID="lblWarning"

runat="server"> </asp:Label>
       </p>

 <!-- Label in the Panel to turn off the popup -->
 <asp:ImageButton ID="btnWarning" runat="server"

                ImageUrl="~/admin/images/1 (4).jpg"  Width="200px" Height="200px"/>
</center>

</asp:Panel>
    </div>
    </form>
</body>
</html>

ModalPopup

如何动态显示警报消息（modalpopup）

问题描述

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