Simple way to make OpenFileDialog smaller in size?

Question

I\'m working on a .NET application for a handheld x86 device which has a 480*800 vertical screen. Everything works wonderful except when comes to a Open File / Save File design.

Answer 1

Open file dialog is a system dialog. It means that your application has no control over it. It is controlled by user. If user wants to change its size in one application, it will gain new size in all applications, since this size is user's preference.

Purpose of common dialogs is providing standard UI parts to user. Imagine how uncomfortable for users it would be to search for file to open if every application would use its own OpenFileDialog.

However you can build your own dialog.