private void OnClientButtonTouchUpInside (object sender, EventArgs e)
 {
     var controller = new ClientSelectionViewController (model.Workspace) {
         ClientSelected = (client) => {
             model.Client = client;
             NavigationController.PopToViewController (this, true);
         }
     };
     NavigationController.PushViewController (controller, true);
 }
 private void OnClientButtonTouchUpInside (object sender, EventArgs e)
 {
     var controller = new ClientSelectionViewController (workspaceId, this);
     NavigationController.PushViewController (controller, true);
 }