private bool?OpenDialog(IDialogViewModel viewModel, string title, WindowState startState, SizeToContent sizeToContent, WindowStartupLocation startupLocation, Window owner)
{
LogWindow(owner);
Window window = new Window()
{
WindowState = startState, Title = title, Content = viewModel, SizeToContent = sizeToContent
};
window.Closed += WindowOnClosed;
window.Owner = owner;
window.WindowStartupLocation = startupLocation;
viewModel.RegisterWindow(window);
return(window.ShowDialog());
}