Home / Community & Support / Developer Productivity Tools Forums / Silverlight > Buttons > In New build of telerick control, telerik:RadWindow.ResponseButton="Accept" throw object reference exception

• saurabh

  Posted on Aug 27, 2011 (permalink)

  Current version used : 2011.2.815.1040
  I implemented the telerik:RadWindow.ResponseButton="Accept" functionality and it was working fine but after taking update it start throwing exception " Object Reference Not set to an instance of an object". when I remove this functionality from button I didn't get this exception but "Enter button key" functionality stop working. If you did any change in new version please let me know. Please suggest. Please find the screen shot of exception.

  Attached files

  • screen-shot-exception.PNG

  Reply

• Yana Yana

  Posted on Aug 29, 2011 (permalink)

  Hi Saurabh,
  
  We're not aware of such an issue. Could you please send us some sample code which will help us reproduce the problem? Thanks
  
  Greetings,
  Yana
  the Telerik team

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• Alexandru

  Posted on Sep 30, 2011 (permalink)

  Hello everyone,
  We have updated our libraries to the latest version(2001.2.920.140 SP1) and have faced the same problem with the buttons taht have set telerik:RadWindow.ResponseButton="Accept" or telerik:RadWindow.ResponseButton="Cancel". Here is the exception and the stack trace we get:
  Exception message: "Object reference not set to an instance of an object."
  Stack Trace: "   at Telerik.Windows.Controls.RadWindow.InvokeButton(Button button)
                             at Telerik.Windows.Controls.RadWindow.OnKeyDown(KeyEventArgs e)
  at System.Windows.Controls.Control.OnKeyDown(Control ctrl, EventArgs e)
  at MS.Internal.JoltHelper.FireEvent(IntPtr unmanagedObj, IntPtr unmanagedObjArgs, Int32 argsTypeIndex, Int32 actualArgsTypeIndex, String eventName)"
  
  It seems that the Button object is not instantiated.
  
  Best regards,
  Alexandru

  Reply

• Yana Yana

  Posted on Oct 5, 2011 (permalink)

  Hi Alexandru,
  
  I tried to reproduce this issue but to no avail, please check the attached project and give it a try. Am I missing something?
  
  Best wishes,
  Yana
  the Telerik team

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  Attached files

  • WindowTest.zip

  Reply

• Alexandru

  Posted on Oct 6, 2011 (permalink)

  Hello,
  Your are not missing anything. Everything is correct. The problem is that the exception is thrown just for some dialogs. I mean that in our application we have a lot of dialogs and for most of them the things works fine, but for a few of them (approx. 2) there is thrown an exception. IFrom the stack trace it seems that the button instance is not created. The problem appeared in the new library release(2011.2.920.1040), with previous versions there was no such a problem.
  

  Reply

• Yana Yana

  Posted on Oct 6, 2011 (permalink)

  Hi Alexandru,
  
  I am sorry for the issues you're experiencing with the RadWindow.
  
  We really cannot help much without reproducing the problem at our side. Could you please try to isolate it in a simpler project and send it to us? You should open a support ticket and attach it there. Thanks in advance
  
  Regards,
  Yana
  the Telerik team

  Explore the entire Telerik portfolio by downloading the Ultimate Collection trial package. Get it now >>

  Reply

• Morten Bergman

  Posted on Oct 27, 2011 (permalink)

  Telerik-
  We just experienced the same beavior when using RadWindow.ResponseButton="Accept". It happens when the user hit the enter key when focus was set on a TextBox placed on a customized RadWindow. I've only seen this in one of our dialogs. We've removed the ResponseButton property for now.
  
  -Morten
  
  
  
  
  

  Reply

• Alexandru

  Posted on Oct 28, 2011 (permalink)

  Hello Morten Bergman,
  At my company we have experienced the same issue, so I created a ticket on their issue tracker and attached a test-project. I was told that the problem will be fixed in the next internal build. So we have just to wait a little.
  
  Best regards,
  Alexandru

  Reply

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