(Inherited from DependencyObject), Determines if the specified item is (or is eligible to be) its own container.

Drag a textbox from a toolbox and set the following properties in the properties window. If you write handlers for the ContextMenuOpening event, you should be aware of timing issues between a ContextMenu control and the service that is responsible for opening and positioning context menus for controls in general. (Inherited from Control), Called before the Drop event occurs. (Inherited from ItemsControl), Gets or sets the outer margin of a FrameworkElement. (Inherited from FrameworkElement. (Inherited from UIElement), Occurs when the input system reports an underlying drop event with this element as the drop target.

The additional step is that you must now force the display of the context menu, because you suppressed the first attempt. The code references a custom BuildMenu method, which is separated out because it is called by more than one of the example handlers. (Inherited from FrameworkElement), Gets or sets the horizontal alignment characteristics that are applied to a FrameworkElement when it is composed in a layout parent, such as a panel or items control.

If you reenter your handler, it becomes infinitely recursive. (Inherited from FrameworkElement. (Inherited from UIElement), Occurs when a UIElement receives focus.

We recommend you to execute the above example code and experiment with some other properties and events. Note: Although the oncontextmenu event is supported in all browsers, the contextmenu attribute is currently only supported in Firefox. (Inherited from FrameworkElement.

(Inherited from Control), Occurs when a keyboard key is pressed while the UIElement has focus. ), Occurs when the input system reports an underlying drag event with this element as the target. The ContextMenuService that is responsible for displaying a context menu will check the event data of the event it raised on the control. Also, if the user happens to right-click a second time, this time your new ContextMenu appears, the value is non null, and your handler will properly replace and display the menu when the handler runs a second time. (Inherited from Control), Gets or sets the thickness of the specified font. (Inherited from FrameworkElement), Gets a value that determines whether this element has logical focus. Be careful when you do this, because opening the context menu in the handler raises the ContextMenuOpening event again.

(Inherited from UIElement), Occurs when the input system reports an underlying drag event with this element as the origin.

This topic illustrates some of the code techniques for various context menu opening scenarios and illustrates a case where the timing issue comes into play. But in this case, whatever new ContextMenu you set on the source element arrives too late to be displayed. (Inherited from Control), Gets or sets an object source used to generate the content of the ItemsControl. ), Gets or sets the suggested height of a FrameworkElement. (Inherited from Control), Gets or sets a brush that describes the foreground color. Occurs when a particular instance of a ContextMenu closes. ), Occurs when any context menu on the element is opened.

An alternative scenario is if you want to replace the entire context menu. (Inherited from UIElement.). Now that you have suppressed the potentially suspect context menu, the next step is to supply a new one, then display it. (Inherited from FrameworkElement), Attempts to set the focus on the control. Occurs just before any context menu on the element is closed.

Occurs just before any context menu on the element is closed. (Inherited from Control), Invoked whenever an unhandled ContextMenuClosing routed event reaches this class in its route. (Inherited from FrameworkElement), Gets or sets the identifying name of the object. (Inherited from UIElement), Retrieves an object that has the specified identifier name. (Inherited from FrameworkElement), Gets or sets the identifying name of the object. Add some more properties, menu items, and checked and unchecked events, as shown in the following XAML code. Here is the XAML code in which a TextBox, a ContextMenu, and MenuItems have been created with some properties and events.

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