问题描述
I've created a class that extends DbConnection in a brand new project.
public class FakeDbConnection : DbConnection { ... }
In the Solution Explorer the class looks like this:
And when double-clicking it wants to open it in design mode which won't work. Opening up the .csproj-file reveals the problem
<ItemGroup>
<Compile Include="FakeADOFakeDbConnection.cs">
<SubType>Component</SubType>
</Compile>
</ItemGroup>
Even if I remove the SubType tag VS2010 immediately re-adds it. Very annoying.
How can I stop VS2010 from opening up my .cs file in designer mode and just open it up as a regular code file?
As described in an answer to this question you can do this:
[System.ComponentModel.DesignerCategory("Code")]
class FakeDbConnection: DbConnection { ... }
Important: The attribute needs to be fully qualified otherwise VS2010 will ignore this.
Important (thanks to jmbpiano): The attribute only applies to the first class in the file.
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