Menu.MenuItemCollection.IndexOf(MenuItem) Menu.MenuItemCollection.IndexOf(MenuItem) Menu.MenuItemCollection.IndexOf(MenuItem) Menu.MenuItemCollection.IndexOf(MenuItem) Method

Definition

Retrieves the index of a specific item in the collection.

public:
 int IndexOf(System::Windows::Forms::MenuItem ^ value);
public int IndexOf (System.Windows.Forms.MenuItem value);
member this.IndexOf : System.Windows.Forms.MenuItem -> int
Public Function IndexOf (value As MenuItem) As Integer

Parameters

value
MenuItem MenuItem MenuItem MenuItem

The MenuItem to locate in the collection.

Returns

The zero-based index of the item found in the collection; otherwise, -1.

Examples

The following code example shows how to create a main menu, myMainMenu, with two MenuItem objects, File and Edit. The File menu has three submenu items: New, Open, and Exit. By using the IndexOf method, you retrieve the index of the Exit item in the File menu collection, and then display its value in a message box. This example requires that you have already created a Form named Form1.

public:
   void InitializeMyMenu()
   {
      // Create the MainMenu Object^.
      MainMenu^ myMainMenu = gcnew MainMenu;
      
      // Create the MenuItem objects.
      MenuItem^ fileMenu = gcnew MenuItem( "&File" );
      MenuItem^ editMenu = gcnew MenuItem( "&Edit" );
      MenuItem^ newFile = gcnew MenuItem( "&New" );
      MenuItem^ openFile = gcnew MenuItem( "&Open" );
      MenuItem^ exitProgram = gcnew MenuItem( "E&xit" );
      
      // Add the MenuItem objects to myMainMenu.
      myMainMenu->MenuItems->Add( fileMenu );
      myMainMenu->MenuItems->Add( editMenu );
      
      // Add three submenus to the File menu.
      fileMenu->MenuItems->Add( newFile );
      fileMenu->MenuItems->Add( openFile );
      fileMenu->MenuItems->Add( exitProgram );
      
      // Assign myMainMenu to the form.
      Menu = myMainMenu;
      
      // Retrieve the index of the Exit menu item.
      String^ indexValue = fileMenu->MenuItems->IndexOf( exitProgram ).ToString();
      
      // Display the result in a message box.
      MessageBox::Show( "The index of the Exit menu item = "
         + indexValue, "MenuItem Information" );
   }
public void InitializeMyMenu()
{
	// Create the MainMenu object.
	MainMenu myMainMenu = new MainMenu();
	
	// Create the MenuItem objects.
	MenuItem fileMenu = new MenuItem("&File");
	MenuItem editMenu = new MenuItem("&Edit");
	MenuItem newFile = new MenuItem("&New");
	MenuItem openFile = new MenuItem("&Open");
	MenuItem exitProgram = new MenuItem("E&xit");
	
	// Add the MenuItem objects to myMainMenu.
	myMainMenu.MenuItems.Add(fileMenu);
	myMainMenu.MenuItems.Add(editMenu);
	
	// Add three submenus to the File menu.
	fileMenu.MenuItems.Add(newFile);
	fileMenu.MenuItems.Add(openFile);
	fileMenu.MenuItems.Add(exitProgram);
	
	// Assign myMainMenu to the form.
	Menu = myMainMenu;
	
	// Retrieve the index of the Exit menu item.
	 string indexValue = 
	fileMenu.MenuItems.IndexOf(exitProgram).ToString();
	// Display the result in a message box.
	MessageBox.Show("The index of the Exit menu item = "
			+ indexValue, "MenuItem Information");
}
Public Sub InitializeMyMenu()
   ' Create the MainMenu object.
   Dim myMainMenu As New MainMenu()
   
   ' Create the MenuItem objects.
   Dim fileMenu As New MenuItem("&File")
   Dim editMenu As New MenuItem("&Edit")
   Dim newFile As New MenuItem("&New")
   Dim openFile As New MenuItem("&Open")
   Dim exitProgram As New MenuItem("E&xit")
   
   ' Add the MenuItem objects to myMainMenu.
   myMainMenu.MenuItems.Add(fileMenu)
   myMainMenu.MenuItems.Add(editMenu)
   
   ' Add three submenus to the File menu.
   fileMenu.MenuItems.Add(newFile)
   fileMenu.MenuItems.Add(openFile)
   fileMenu.MenuItems.Add(exitProgram)
   
   ' Assign myMainMenu to the form.
   Menu = myMainMenu
   
   ' Retrieve the index of the Exit menu item.
   Dim indexValue As String = fileMenu.MenuItems.IndexOf(exitProgram).ToString()
   ' Display the result in a message box.
   MessageBox.Show("The index of the Exit menu item = " + indexValue, "MenuItem Information")
End Sub

Applies to