Why would you want to initialize a dialog with a using statment?

Question

I'm adapting the coding style guide from this source: http://www.csharpfriends.com/articles/getarticle.aspx?articleid=336

Under "5.2 Initialization", it recommends the following:

If you initialize a dialog try to use the using statement:

using (OpenFileDialog openFileDialog = new OpenFileDialog()) { }

What are the reasons for this style choice?

Answer 1

Chances are you only need the dialog short-term for immediate input. So, with a using statement, you can free the resources after you've completed what you need from it (Dispose it).

Using is just syntactical sugar for calling the dispose method after use.