问题
I am Developing a web application by using ASP.NET 3.5, jQuery and RadAjax Telerik Control. I get Error Messages when page Loading. that is :"Microsoft JScript runtime error: Unable to set value of the property 'control': object is null or undefined" . Image:
and when I click to Open RadWindow then get same Error Message. and could not open radwindow.
Image 2:
How can I solved this Error. Help me..
Thanks Nahid
回答1:
Unfortunately the source of the issue can't really be seen with this kind of error message. I would go over to Telerik.com and submit a runnable project, as well as steps to reproduce the issue, in a support ticket and have the support team take a look at the problem.
回答2:
This issue is isolated to the jQuery Validate Javascript Library.
The script filename is: jquery.validate.unobtrusive.min.js
Although jQuery is Open Source, this library was provided by Microsoft (as indicated at the top of my js file):
/*
** Unobtrusive validation support library for jQuery and jQuery Validate
** Copyright (C) Microsoft Corporation. All rights reserved.
*/
Try replacing the library to use the replacement jquery.validate.min.js
One way is to use Visual Studio's NuGet Package Manager by the following:
- Right-click on your Project's References folder
- Select 'Add Library Package Reference...'
- When the window opens, Select 'Online' from the left sidebar menu.
- On the top-right, type in 'jquery.validate' and hit the enter key.
- Locate the 'jQuery Validation' and click the 'Install' button.
- Change your code to use the new library name 'jquery.validate.min.js'
I tested this and my client-side field validation all seems to work without the annoying exceptions when debugging in Visual Studio.
来源：https://stackoverflow.com/questions/5933978/microsoft-jscript-runtime-error-unable-to-set-value-of-the-property-control