If both AutoCompleteExtender and ValidatorCalloutExtender are present on same page, error occurred during page unload.
1 <%@ Page Language="C#" AutoEventWireup="true" Inherits="Test_Default" Codebehind="Default.aspx.cs" %>
2
3 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
4 <html xmlns="http://www.w3.org/1999/xhtml">
5 <head id="Head1" runat="server">
6 </head>
7 <body>
8 <form id="form1" runat="server">
9 <asp:ScriptManager ID="ScriptManager1" runat="server" />
10 <asp:TextBox ID="BccTextBox" runat="server" TextMode="SingleLine" ReadOnly="true" />
11 <%--Validator.--%>
12 <asp:RegularExpressionValidator ID="BccValidator" runat="server" ControlToValidate="BccTextBox"
13 Display="None" EnableClientScript="true" ValidationExpression="\d+, \d+, \d+, \d+" />
14 <%--Validator callout extender.--%>
15 <AjaxToolkit:ValidatorCalloutExtender ID="BccValidatorCalloutExtender" runat="server"
16 TargetControlID="BccValidator" Width="350px" />
17 <asp:TextBox ID="ExpenseFormTextBox" runat="server" />
18 <%--Auto complete extender.--%>
19 <asp:AutoCompleteExtender ID="ExpenseFormAutoCompleteExtender" runat="server" MinimumPrefixLength="1"
20 ServicePath="~/Common/Controls/BudgetClassificationCodes/AutoCompleteService.asmx"
21 ServiceMethod="GetExpenseFormsCodes" TargetControlID="ExpenseFormTextBox" EnableCaching="true" />
22 </form>
23 </body>
24 </html>
25
Microsoft JScript: Sys.ArgumentUndefinedException: Value cannot be undefined.
Parameter name: element
Sys.UI.DomElement.getVisible = function Sys$UI$DomElement$getVisible(element) {
/// <param name="element" domElement="true"></param>
/// <returns type="Boolean"></returns>
var e = Function._validateParams(arguments, [
{name: "element", domElement: true}
]);
if (e) throw e;
return (element.style.visibility !== 'hidden');
}
Call stack:
> Sys$UI$DomElement$getVisible JScript
JScript anonymous function JScript
Sys$_Application$dispose JScript
Sys$_Application$_unloadHandler JScript
JScript anonymous function JScript
JScript anonymous function JScript
Ajax RC1.
Ajax Features Dec.
Ajax Control Toolkit 61214 Production.