Hello!

I get the following message while opening the form designer:

"Visual Studio cannot open a designer for the file because the class within it does not inherit from a class that can be visually designed"

atSystem.ComponentModel.Design.Serialization.CodeDomDesignerLoader.EnsureDocument(IDesignerSerializationManager manager)
atSystem.ComponentModel.Design.Serialization.CodeDomDesignerLoader.PerformLoad(IDesignerSerializationManager manager)
atMicrosoft.VisualStudio.Design.Serialization.CodeDom.VSCodeDomDesignerLoader.PerformLoad(IDesignerSerializationManager serializationManager)
atSystem.ComponentModel.Design.Serialization.BasicDesignerLoader.BeginLoad(IDesignerLoaderHost host)

My class ist the first one in the file like it is described on MSDN.

How can I solve this problem?

Regards

Hi mawild,

Which class did you inherited? You cannot inherite a form from a class without designer?

Sincerely,
Kira Qian

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