Unhandled exception in the designer and has been disabled.

Asked By 0 points N/A Posted on -
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While using Microsoft Studio I received an error which shows that Parameter is not valid. I take a snapshot of this please see below. What should I do now?

Parameter is not valid.

Microsoft visual studio

The control Telerik.Win Controls.UI.RadRibbonBar has thrown an unhandled exception in the designer and has been disabled.

Exception:

Parameter is not valid.

 

Stack trace:

At Telerik.Wincontrols.IO.RadribbonBar.OnPant(PaintEventArgs e)

At Telerik.WinControls.IO.RadRibbonBar.WndProc(Message& m)

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Answered By 60 points N/A #175335

Unhandled exception in the designer and has been disabled.

qa-featured

Hi Curtis,

In order to solve this issue you need to debug your application and put a proper debug point and see where the errors are coming, but seeing it from outside I think you have missed some of the Telerik references to your main project. Try to include the following in your main project and run again.

1. Telerik.WinControls.dll

2.Telerik.WinControls.RichTextBox.dll

3.Telerik.WinControls.SpellChecker.dll

4.Telerik.WinControls.UI.dll

5.TelerikCommon.dll

Including these files may solve the issue.

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