javascript - Microsoft JScript runtime error: 'this._postBackSettings.async' is null or not an object -

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i have report on asp page , every time change filter , click view report, error:

microsoft jscript runtime error: 'this._postbacksettings.async' null or not object

i tried change enablepartialrendering="true" enablepartialrendering="false" people can't login on site

i discovered solution problem.

i use telerik radscriptmanager , radajaxmanager (which built upon respective asp.net framework objects). discovered issues when implemented jquery ui animations hide buttons--animations executed "onclientclick" of button.

to solve problem, handled onrequeststart , onresponseend client events , executed applicable hide , show animations onrequeststart , onresponseend, respectively.

i know not uses telerik, concept might key, , applies other ajax frameworks: when performing client-side changes on ajaxified elements (especially changes animations occur during ajax request processing), make changes in framework's requeststart/responseend client side event handlers rather in client side event handlers of ajaxified elements.


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