如何在 Visual Studio IDE 中使所有 IDisposable 类的颜色不同？

Question

Title covers it all. I'd like classes which implement IDisposable to show up in a specific color so I can know if I should wrap them in a using block. Is there a setting or a process by which you can extend the IDE?

Answer 1

I assume this will become easier/extension-free once Roslyn comes out, but this is presently not easy because you can't access the code as C# from an extension easily.

In Resharper it's easy, though! My example was tested in ReSharper 9.0. Sadly, there's no easy way to give this to you.

• Extensions -> Resharper -> Options -> Code Inspection -> Custom Patterns -> Add, dialog popup
• Select C# (upper left)
• Select "Find" (upper right)
• Add the pattern of new $disp$($args$)
• Pattern severity: Show as suggestion
• Description: Disposable construction
• "Add Placeholder" of type: Type , name: disp , type: System.IDisposable
• "Add Placeholder" of type: Arguments , name: args

Save and you'll now get a "suggestion" whenever a new disposable is being constructed.

Adding the pattern $disp$ $var$ = $exp$; could also be helpful.

• "Add Placeholder" of type: Type , name: disp , type: System.IDisposable
• "Add Placeholder" of type: Expression , name: exp
• "Add Placeholder" of type: Identifier , name: var

Answer 2

It is certainly possible to do this though it isn't as simple as just changing a setting. You would need to write a Visual Studio addin to accomplish this.

Visit http://msdn.microsoft.com/en-us/vsx/bb980955.aspx to get started. As others will point out. This is not for the faint of heart.

Here's a link that may point you toward what you are looking for: http://msdn.microsoft.com/en-us/library/bb166778.aspx

Answer 3

You cannot. This would require language service support and neither C# or VB.Net provide this functionality.

Cannot is probably too strong of a word. It's certainly possible to do this with an Add-In which does deep inspection of the code and figures out hierarchies. However it's a very non-trivial task.

Answer 4

I am not sure, if FXCop or StyleCop can do this already. But then, it will be a post-compile suggestion/warning.

Resharper suggests this, I guess.

Answer 5

当然，有大量工具可用于构建 VS 扩展， 请参阅 Visual Studio 2008 SDK 1.1但是构建此类加载项所需的时间将需要更多时间，您将花费更多时间浏览组件并确定它们是否是一次性的

Answer 6

The word on the street is this kind of thing will be much easier in VS.NET 2010 . The editor is being rewritten in WPF.

Answer 7

Maybe I'm a bad person for doing this, but I've been using this piece of code recently:

public static void BulkDispose(object[] objects)
{
  foreach (object o in objects)
  {
    if (o != null)
    {
      if (o is IDisposable)
      {
        IDisposable disposable = o as IDisposable;
        disposable.Dispose();
      }
    }
  }
}