With folderBrowseDialog you can show the top level of the folder which will be shown initially. However that feature is not there on openFileDialog.
I want to let the user open files from a specific folder only. How do I specify the folder?
Just set the openFileDialog.InitialDirectory
OpenFileDialog openFileDialog = new OpenFileDialog();
openFileDialog.InitialDirectory = @"C:\";
openFileDialog.ShowDialog();