I have a project developed in Visual Studio 2012 c#. Now I need to add vb web form but it showing me only Visual C# tab to add web form. How should I add VB web form ?
No, you can't. An assembly/project has to be one language.
With ASP.Net website you can add both C# and VB.Net WebForm.
You need to check whether VB is installed. Or may be reinstall full and if still issues contact Visual Studio team on MSDN.
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