Sometimes while working on WinForms applications a very strange thing happens, when I add a new form to the project it shows up as a C# class. This is very annoying because I can not readily get to the design view for that form. Luckily there is a simple fix.
1. Unload the project.
2. Search for the specific form in the xml file.
3. Replace xml with following.
<Compile Include="[formname].cs"> <SubType>Form</SubType> </Compile>
4. Save and reload the project.