/// <summary>
/// Shows the dialog overlay.
/// </summary>
private void ShowDialogOverlay()
{
var overlay = OverlayNavigator.Show <DialogOverlay>();
// Hide the pause overlay when the dialog closes.
overlay.OnHide += OnDialogOverlayHide;
dialogModel = overlay.Model;
}
protected override void OnPreHide()
{
base.OnPreHide();
dialogModel = null;
}