/// <summary>
/// Shows a dialog.
/// </summary>
/// <remarks>
/// The dialog used to represent the ViewModel is retrieved from the registered mappings.
/// </remarks>
/// <param displayName="ownerViewModel">
/// A ViewModel that represents the owner window of the dialog.
/// </param>
/// <param displayName="viewModel">The ViewModel of the new dialog.</param>
/// <returns>
/// A nullable value of type bool that signifies how a window was closed by the user.
/// </returns>
public bool?ShowDialog(object ownerViewModel, object viewModel)
{
Type dialogType =
windowViewModelMappings.GetWindowTypeFromViewModelType(viewModel.GetType());
return(ShowDialog(ownerViewModel, viewModel, dialogType));
}
private Window CreateDialog(object ownerViewModel, object viewModel)
{
Type dialogType = _windowViewModelMappings.GetWindowTypeFromViewModelType(viewModel.GetType());
var dialog = (Window)Activator.CreateInstance(dialogType);
Window owner = FindOwnerWindow(ownerViewModel);
if (dialog != owner)
{
dialog.Owner = owner;
}
else
{
dialog.WindowStartupLocation = WindowStartupLocation.CenterScreen;
}
dialog.DataContext = viewModel;
return(dialog);
}