为什么在隐藏targetcontrolid（按钮）后出现modelpopup [英] why modelpopup is appearing after being hidden of targetcontrolid(button)
问题描述
<％@ Page Language =C＃AutoEventWireup =trueCodeFile =Default.aspx.csInherits =_ Default％>
<％@ Register Assembly = AjaxControlToolkitNamespace =AjaxControlToolkitTagPrefix =ajaxToolkit％>
<！DOCTYPE html PUBLIC - // W3C // DTD XHTML 1.0 Transitional // ENhttp：// 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 =form1runat =server>
< ; asp：ScriptManager ID =ScriptManager1runat =server>
< asp：Button ID =show_popuprunat =serverText =Show popup/ >
< asp：Label ID =Label1runat =server>
< ajaxToolkit：ModalPopupExtender ID =mperunat =serverTargetControlID =show_popupPopupControlID =Panel1>
< asp：面板ID =Panel1runat =server>
< asp：TextBox ID =TextBox1runat =server>
< asp：Button ID =Button1runat =serverText =Button
onclick =Button1_Click1/>
< / form>
< / body>
< / html>
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="ajaxToolkit" %>
<!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">
<asp:ScriptManager ID="ScriptManager1" runat="server">
<asp:Button ID="show_popup" runat="server" Text="Show popup" />
<asp:Label ID="Label1" runat="server">
<ajaxToolkit:ModalPopupExtender ID="mpe" runat="server" TargetControlID="show_popup" PopupControlID="Panel1">
<asp:Panel ID="Panel1" runat="server">
<asp:TextBox ID="TextBox1" runat="server">
<asp:Button ID="Button1" runat="server" Text="Button"
onclick="Button1_Click1" />
</form>
</body>
</html>
protected void Button1_Click1(object sender, EventArgs e)
{
show_popup.Visible = false;
Label1.Text = TextBox1.Text;
mpe.Hide();
}
推荐答案
使用时：
When you use:
show_popup.Visible = false;
你不只是隐藏按钮，它根本不会被渲染。这将导致客户端错误，因为扩展程序将无法找到目标控件。
而是尝试隐藏按钮，如下所示：
you're not just hiding button, it will not be rendered at all. That will cause client side error because extender will not be able to find target control.
Instead try hiding the button with something like this:
show_popup.Style.Add("display", "none");
simillar问题...
如何在页面加载中显示ModalPopUpExtender？ [ ^ ]
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