C#, WPF - OpenFileDialog does not appear

Question

I have been searching up and down the web and unfortunately never came across an issue quite like mine, so here goes:

My C# WPF application won\'t show me no OpenFil

Answer 1

This happened to me recently. The problem was the Main method wasn't marked as an STAThread which will cause the WPF OpenFileDialog's ShowDialog method to block indefinitely.

static void Main(string[] args)
{
    var openFileDialog = new OpenFileDialog();
    var result = openFileDialog.ShowDialog();
}

will never exit or throw an exception, whereas

[STAThread]    
static void Main(string[] args)
{
    var openFileDialog = new OpenFileDialog();
    var result = openFileDialog.ShowDialog();
}

will work as expected.