C# WinForms: How to set Main function STAThreadAttribute

Question

I get the following exception when calling saveFileDialog.ShowDialog() in a background thread:

Current thread must be set to single thr

Answer 1

Solution very easy; Just add this on top of the Main method [STAThread]

So your main method should look like this

 [STAThread]
 static void Main(string[] args)
 {
     ....
 }

It works for me.