I have a Web Site built on 4.0 framework with AjaxControlToolKit Version 4.1.60919. We are encountering crashes of our webforms that contain and update panel with button click events, dropdownlist onselected index changed etc... We have applied all
windows updates even updated to 4.5.1 framework. There was a hotfix for __DoPostback issue undefined which was also applied but did not fix the issue. I have debugged the code on client-side and server side and still have not been able to determine the issue.
The page postback completes but when the page goes to render IE tab crashes and page get auto recovered. I was not able to get IE 11 to log error in the event log on windows 7 using the registry settings also. The only workaround we could fine was putting
a <meta http-equiv="X-UA-Compatible" content="IE=EmulateIE9" > in the page which is an unacceptable solution.
There was one error that was received on a dropdown selected index change event that is listed below:
Problem signature:
Problem Event Name: BEX
Application Name: iexplore.exe
Application Version: 11.0.9600.16428
Application Timestamp: 525b664c
Fault Module Name: MSHTML.dll
Fault Module Version: 11.0.9600.16476
Fault Module Timestamp: 52947390
Exception Offset: 0021ac2f
Exception Code: c0000409
Exception Data: 00000000
OS Version: 6.1.7601.2.1.0.256.48
Locale ID: 1033
Additional Information 1: afbe
Additional Information 2: afbeed828ecb909db2a6c6183a16dd94
Additional Information 3: 2152
Additional Information 4: 21522382e593841dfc4a93c4452c9944
There was one error that was received on a dropdown selected index change event that is listed below:
Problem signature:
Problem Event Name: BEX
Application Name: iexplore.exe
Application Version: 11.0.9600.16428
Application Timestamp: 525b664c
Fault Module Name: MSHTML.dll
Fault Module Version: 11.0.9600.16476
Fault Module Timestamp: 52947390
Exception Offset: 0021ac2f
Exception Code: c0000409
Exception Data: 00000000
OS Version: 6.1.7601.2.1.0.256.48
Locale ID: 1033
Additional Information 1: afbe
Additional Information 2: afbeed828ecb909db2a6c6183a16dd94
Additional Information 3: 2152
Additional Information 4: 21522382e593841dfc4a93c4452c9944