I’m working on legacy code in visual studio 2019 and c# and my projects has reference to Telerik component.
All my user control has designer error. Also when I create new empty user-control, I got designer error
I have this problem in current solution and when I create new fresh solution, everything is OK.
Note that I’ve checked the designer’s code several times.
I searched for the problem on Google and tried the following ways
- reset the visual studio
- checking the following option:
Tools >> Options >> Windows Forms
Designer >> automatically Populate
Toolbox
here is call stack for error
at System.ComponentModel.Design.Serialization.CodeDomDesignerLoader.EnsureDocument(IDesignerSerializationManager manager)at System.ComponentModel.Design.Serialization.CodeDomDesignerLoader.PerformLoad(IDesignerSerializationManager manager)
at Microsoft.VisualStudio.Design.Serialization.CodeDom.VSCodeDomDesignerLoader.PerformLoad(IDesignerSerializationManager serializationManager)
End of stack trace from previous location where exception was thrown —
at Microsoft.VisualStudio.Design.Serialization.CodeDom.VSCodeDomDesignerLoader.PerformLoad(IDesignerSerializationManager serializationManager)at Microsoft.VisualStudio.Design.Serialization.CodeDom.VSCodeDomDesignerLoader.DeferredLoadHandler.Microsoft.VisualStudio.TextManager.Interop.IVsTextBufferDataEvents.OnLoadCompleted(Int32 fReload)
>Solution :
Please take a look at Windows Forms Designer error page
hope it help to solve your problem
And some helpful tips in Stackoverflow