gtk-sharp 0.0.0.0 neutral 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;
using GtkSharp;

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 Atk.Implementor GLib.IWrapper GLib.IWrapper System.IDisposable Method System.Void

Removes the menu from the .

Method System.Void

Disposes the resources associated with the object.

Constructor

Internal constructor

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

Creates a new

an object of type This is the default constructor for Property System.UInt32

The for

The for the class. 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 an object of type Event System.EventHandler

Emitted when the selection is changed.

Constructor

Internal constructor

GLib type for the type Creates a new instance of OptionMenu, using the GLib-provided type This is a constructor used by derivative types of that would have their own GLib type assigned to it. This is not typically used by C# code. Method System.Void

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