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Menu.MenuItemCollection.Clear Method

  • Reference

Definition

Namespace:
System.Windows.Forms
Assembly:
System.Windows.Forms.dll

Removes all MenuItem objects from the menu item collection.

public:
 virtual void Clear();
public virtual void Clear ();
abstract member Clear : unit -> unit
override this.Clear : unit -> unit
Public Overridable Sub Clear ()

Implements

Clear()

Examples

In this example, you create a main menu, myMainMenu, with two MenuItem objects, File and Edit. The File menu has three submenu items, New, Open, and Exit. Using the Clear method, you remove all the MenuItem objects in the File menu collection. This program requires that you have already created a Form named Form1.

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.
   this->Menu = myMainMenu;
   
   // Clear the File menu items. 
   fileMenu->MenuItems->Clear();
}

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.
    this.Menu = myMainMenu;
    
    // Clear the File menu items. 
    fileMenu.MenuItems.Clear(); 
}

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.
    Me.Menu = myMainMenu

    ' Clear the File menu items. 
    fileMenu.MenuItems.Clear()
End Sub

Remarks

You can use this method to clear the entire collection of menu items from a menu. To remove an individual menu item from the collection, use the Remove method. To add new MenuItem objects to the collection, use the Add method.

Applies to

See also