gtk-sharp 2.6.0.0 Gtk# is thread aware, but not thread safe; See the Gtk# Thread Programming for details.

A widget used to choose from a list of valid choices.

A is a widget that allows the user to choose from a list of valid choices. The displays the selected choice. When activated the displays a popup which allows the user to make a new choice. Using a is simple; build a , by calling , then appending s to it with . Set that menu on the with . Set the selected with ; connect to the event ; when the event occurs, check the new selected with .


using System;
using Gtk;

class OptionMenuSample
{
	OptionMenu opt;
	
	static void Main ()
	{
		new OptionMenuSample ();
	}
	
	OptionMenuSample ()
	{
		Application.Init ();
		
		Window win = new Window ("OptionMenuSample");
		win.DeleteEvent += new DeleteEventHandler (OnWinDelete);
		
		// set up the OptionMenu
		opt = new OptionMenu ();
		opt.Changed += new EventHandler (OnOptionChanged);
		Menu m = new Menu ();
		MenuItem miOne = new MenuItem ("One");
		m.Append (miOne);
		MenuItem miTwo = new MenuItem ("Two");
		m.Append (miTwo);
		MenuItem miThree = new MenuItem ("Three");
		m.Append (miThree);
		
		// add children widgets to their parents
		opt.Menu = m;
		win.Add (opt);
		
		
		// set the OptionMenu to a value
		opt.SetHistory (2);
		
		win.ShowAll ();
		
		Application.Run ();
	}
	
	void OnOptionChanged (object o, EventArgs args)
	{
		Console.WriteLine (opt.History);
	}
	
	void OnWinDelete (object o, DeleteEventArgs args)
	{
		Application.Quit ();
	}
}

Gtk.Button System.Obsolete(Message=null, IsError=False) Method System.Void

Removes the menu from the .

Constructor

Internal constructor

Pointer to the C object. This is an internal constructor, and should not be used by user code. Constructor

Creates a new

This is the default constructor for Property System.Int32

Retrieves the index of the currently selected .

an object of type The s are numbered from top to bottom, starting with 0. Property Gtk.Widget

The menu of options.

an object of type GLib.Property(Name="menu") Event System.EventHandler

Emitted when the selection is changed.

GLib.Signal(CName="changed") Method System.Void

Selects the menu item specified by making it the newly selected value for the .

a Property GLib.GType

GType Property.

a Returns the native value for . Method System.Void

Default handler for the event.

Override this method in a subclass to provide a default handler for the event. Constructor

Protected Constructor.

a Chain to this constructor if you have manually registered a native value for your subclass. System.Obsolete(Message=null, IsError=False)