How to close Catel Framework Datawindow from the viewmodel

Question

Does anyone know how to close (or save) the data window from your viewmodel and not use the ok or cancel button but custom buttons like this:

public class UploadWindow : DataWindow
{
    public UploadWindow()
        : base(DataWindowMode.Custom)
    {
        AddCustomButton(new DataWindowButton("Ok", "???"));
        AddCustomButton(new DataWindowButton("Cancel", "???"));

        InitializeComponent();
    }
}

So i can do something extra before closing or saving other than the normal stuff. Thanks for the help!

Answer 1

Inside the VM:

Option 1:

this.SaveAndCloseViewModelAsync();

Option 2:

this.CancelAndCloseViewModelAsync();