Overview

This topic covers the specific events exposed by the RadRadialMenu control.

RadRadialMenu Events

The RadRadialMenu control raises the following specific events:

• Opening: Occurs before RadRadialMenu gets opened.

• Opened: Occurs each time the RadialMenu gets opened.

• Closed: Occurs each time RadRadialMenu gets closed.

• Navigated: Occurs when the user navigates to another view (child items) or returns back through the RadialMenuButton.

All of the listed events receive two arguments:

• The sender argument contains the RadRadialMenu. This argument is of type object, but can be cast to the RadRadialMenu type.

• A RadRoutedEventArgs object.

PreviewToolTipOpen

The PreviewToolTipOpen event occurs when the ToolTip is about to be shown. The event receives the following arguments:

• The sender argument contains the RadRadialMenu. This argument is of type object, but can be cast to the RadRadialMenu type.

• RadialMenuNavigatingEventArgs object. It provides Placement property which sets the position of the ToolTip.

Navigating

Available, since the R1 2021 release and occurs before a menu level changes. The event receives the following arguments:

• The sender argument contains the RadRadialMenu. This argument is of type object, but can be cast to the RadRadialMenu type.

• RadialMenuNavigatingEventArgs object, which exposes the following properties:

  • IsNavigatingBack: A boolean property, which indicates whether the user is navigating backward.

  • MenuItemSource: Gets the menu item from which the navigation started, if there is one.

  • MenuItemTarget: Gets the menu item to which the user is trying to navigate to.

  • AutoSizeMenuItems: Gets or sets whether the level to which the user is navigating will have its segments auto-sized.

Example 1: Handling the Navigating event

C#

	private void RadRadialMenu_Navigating(object sender, Controls.RadialMenuNavigatingEventArgs e)
	{
		// Auto-size menu items only when they are more than 2
		if (e.MenuItemTarget != null && e.MenuItemTarget.ChildItems.Count <= 2)
		{
			e.AutoSizeMenuItems = false;
		}
	}

RadRadialMenuItem Events

RadRadialMenuItem raises the following specific event:

• Click: Occurs each time an item gets clicked. The event handler receives two arguments:

  • The sender argument contains the RadRadialMenuItem. This argument is of type object, but can be cast to the RadRadialMenuItem type.

  • A RadRoutedEventArgs object.