C# NSMenu.InsertItematIndex方法代碼示例

		//strongly typed window accessor
		public override void AwakeFromNib ()
		{
			// add the searchMenu to this control, allowing recent searches to be added.
			//
			// note that we could build this menu inside our nib, but for clarity we're
			// building the menu in code to illustrate the use of tags:
			//		NSSearchFieldRecentsTitleMenuItemTag, NSSearchFieldNoRecentsMenuItemTag, etc.
			//			
			if (searchField.RespondsToSelector(new Selector("setRecentSearches:")))
			{
				NSMenu searchMenu = new NSMenu("Search Menu") {
					AutoEnablesItems = true
				};
				
				var item = new NSMenuItem("Custom","",(o,e) => actionMenuItem());
				searchMenu.InsertItematIndex(item,0);
				
				var separator = NSMenuItem.SeparatorItem;
				searchMenu.InsertItematIndex(separator,1);
				
				var recentsTitleItem = new NSMenuItem("Recent Searches","");
				// tag this menu item so NSSearchField can use it and respond to it appropriately
				recentsTitleItem.Tag = NSSearchFieldRecentsTitleMenuItemTag;
				searchMenu.InsertItematIndex(recentsTitleItem,2);

				var norecentsTitleItem = new NSMenuItem("No recent searches","");
				// tag this menu item so NSSearchField can use it and respond to it appropriately
				norecentsTitleItem.Tag = NSSearchFieldNoRecentsMenuItemTag;
				searchMenu.InsertItematIndex(norecentsTitleItem,3);
				
				var recentsItem = new NSMenuItem("Recents","");
				// tag this menu item so NSSearchField can use it and respond to it appropriately
				recentsItem.Tag = NSSearchFieldRecentsMenuItemTag;
				searchMenu.InsertItematIndex(recentsItem,4);

				var separatorItem = NSMenuItem.SeparatorItem;
				// tag this menu item so NSSearchField can use it, by hiding/show it appropriately:
				separatorItem.Tag = NSSearchFieldRecentsTitleMenuItemTag;
				searchMenu.InsertItematIndex (separatorItem,5);

				var clearItem = new NSMenuItem ("Clear", "");
				// tag this menu item so NSSearchField can use it
				clearItem.Tag = NSSearchFieldClearRecentsMenuItemTag;
				searchMenu.InsertItematIndex (clearItem, 6);
				
				var searchCell = searchField.Cell;
				searchCell.MaximumRecents = 20;
				searchCell.SearchMenuTemplate = searchMenu;
				
				// with lamda
				//searchField.ControlTextDidChange += (o,e) => controlTextDidChange((NSNotification)o);
				// or delegate
				searchField.Changed += delegate (object sender, EventArgs e) {
					handleTextDidChange ((NSNotification) sender);
				};
				searchField.DoCommandBySelector = handleCommandSelectors;
				searchField.GetCompletions = handleFilterCompletions;
			}
				
			// build the list of keyword strings for our type completion dropdown list in NSSearchField
			builtInKeywords = new List<string>() {"Favorite", "Favorite1", "Favorite11", "Favorite3", "Vacations1", "Vacations2",
					"Hawaii", "Family", "Important", "Important2", "Personal"};
		}