protected void Close(bool?result)
{
if (IsClosed)
{
throw new InvalidOperationException("Already closed");
}
OnClosed();
IsClosed = true;
ChildViewModelManager.Close(this, result);
}
public Task <bool?> ShowDialog()
{
return(ChildViewModelManager.ShowDialog(this));
}
public Task Show()
{
return(ChildViewModelManager.Show(this));
}
