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ModalPopupExtender and validation problems

Asked 2009-09-23T13:35:49.607
12

The problem I am facing is that when there is validation on a page and I am trying to display a model pop-up, the pop-up is not getting displayed. And by using fire-bug I have noticed that an error is being thrown.

The button that is used to display the pop-up has cause validation set to false so I am stuck as to what is causing the error.

I have created a sample page to isolate the problem that I am having, any help would be greatly appreciated.

The Error

function () {Array.remove(Page_ValidationSummaries, document.getElementById("ValidationSummary1"));}(function () {var fn = function () {AjaxControlToolkit.ModalPopupBehavior.invokeViaServer("mpeSelectClient", true);Sys.Application.remove_load(fn);};Sys.Application.add_load(fn);}) is not a function
http://localhost:1131/WebForm1.aspx
Line 136

ASP

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="CLIck10.WebForm1" %>
<%@ 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:ScriptManager>
        <div>
            <asp:Button ID="btnPush" runat="server" Text="Push" CausesValidation="false" onclick="btnPush_Click" />
            <asp:TextBox ID="txtVal" runat="server" />
            <asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server" ControlToValidate="txtVal" ErrorMessage="RequiredFieldValidator" />
            <asp:ValidationSummary ID="ValidationSummary1" runat="server" />
asp.net ajax modalpopupextender
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2 Answers

6

This is an issue with using both ValidationSummary and ModalPopup.

see here: http://ajaxcontroltoolkit.codeplex.com/WorkItem/View.aspx?WorkItemId=12835

The problem is that there is a missing ";" between the two injected scripts.

Their solution is to create/use a custom server control that inherits from ValidationSummary, that injects a ";" into the page startup script to fix the bug:

[ToolboxData("")]
public class AjaxValidationSummary : ValidationSummary
{
  protected override void OnPreRender(EventArgs e)
  {
    base.OnPreRender(e);
    ScriptManager.RegisterStartupScript(this.Page, this.Page.GetType(), this.ClientID, ";", true);
  }
}
answered 2010-04-26T15:40:59.720
1

I'd try changing this:

<input id="popupDummy" runat="server" style="display:none" />

to something like this:

<asp:Button id="popupDummy" runat="server" CausesValidation="false" Visible="false" />

I bet the untyped input is requiring validation.

answered 2009-09-23T13:41:41.857

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