FlexGridSample.GroupingSampleViewController.collapseButton_Click C# (CSharp) Метод

		partial void collapseButton_Click(UIBarButtonItem sender)
		{
			if (sender.Title.Equals("Collapse"))
			{
				sender.Title = "Expand";
				this.flexGrid.CollapseGroupsToLevel(0);
			}
			else
			{
				sender.Title = "Collapse";
				foreach (var g in this.flexGrid.Rows)
				{
					if (g is GridGroupRow)
					{
						(g as GridGroupRow).IsCollapsed = false;
					}
				}
			}
		}