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Microsoft JScript runtime error: Unable to get value of the property 'UI': object is null or undefined

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Ajinkya
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Ajinkya asked on 15 Nov 2013, 06:19 AM
Hi All,

I have just updated AjaxControlToolKit to 3.5.7, I am using VS2008 web application. After updating the dll in my application, I am getting below error on default login page. 

Microsoft JScript runtime error: Unable to get value of the property 'UI': object is null or undefined

  When I ignores this error, and proceeds for Log in, it doesn't do any thing, even it don't fires any event nothing is working. Need urgent help. Thanks in advance.

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Shinu
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answered on 15 Nov 2013, 10:50 AM
Hi Ajinkya,

I suggest you use the ToolkitScriptManager instead of the default ScriptManager and set its CombineScripts property to false.

Hope this helps,
Shinu.
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Ajinkya
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answered on 15 Nov 2013, 10:57 AM
Hi Shinu,
    Thanks for reply. But I didnt find ToolkitScriptManager in AjaxControls, it is available in which version?
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Ajinkya
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answered on 15 Nov 2013, 12:21 PM
Thanks Shinu, I was looking ToolkitScriptManager in asp controls, so it was not getting. I used AjaxToolKit prefix then it worked, issue resolved.
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