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hi, I am using Ajax controls like CalendarExtender,FilteredTextboxExtender,Accordion,MaskedEditExtender,ConfirmButtonControl,ValidatorCalloutExtender etc in my application.I am also using Validators like RequireFieldValidators,RangeExpressionValidator etc.

When i am running the application, i used to get the following error.

Error:-

Sys.ArgumentType Exception:Object of type 'AjaxControlToolkit.Animation.LengthAnimation' cannot be converted to type 'AjaxControlToolkit.Animation.Animation:Parametername:instance.

I am getting this error when i try to click a button in a Gridview.When Data needs to be populated when i click a button,the page becomes distorted and this error occurs.I cannot do any changes in this page after the page is distorted.How can i rectify this error?

Now i am getting a similar error when i click a Button in a page.This Button is not inside a Gridview.I got an error as follows:

Error:-

Sys.InvalidOperationException:Handler was not added through the Sys.UI.DomEvent.addHandler method

Please Help