Error window show modal in MVVM WPF

Question

I have implemented my MVVM error message as a message dialog that subscribes to error messages via a mediator class, so that other viewmodels can notify it if any errors occ

Answer 1

i'm using the same method as Scott Whitlock.

there is just one more important property to set:

class ModalDialog: Window
{
}

.
.
.

var dlg = new ModalDialog {
    Content = viewModelName,
    **TopMost = true,**
    Parent = mainWindowViewModel
};

dlg.ShowDialog();