private void Workspace_MouseRightButtonDown(object sender, MouseButtonEventArgs e)
{
_mainBlockViewModel.Diselect();
_mainBlockViewModel.DeselectBlocks();
//_mainBlockViewModel.WorkspaceContextMenu();
}
private void Workspace_MouseLeftButtonUp(object sender, MouseButtonEventArgs e)
{
//_mainBlockViewModel.IToastNotifications.ShowInformation("Workspace_MouseLeftButtonUp");
_mainBlockViewModel.DeselectBlocks();
}