Menu

Description

The Menu component is represented by the context menu.

Comments

Component implemented by the Menu class.

Example

A menu may include titles, separators and menu items. Menu items are implemented by the MenuItem and ActiveMenuItem classes. Unlike MenuItem class, instances of the ActiveMenuItem class are not selected on hovering over these items, and clicking them does not close the menu.

A checkbox, radio button, or an image can be shown in the left part of a menu item.

Image can be specified for all the menu items from a sprite by the ImageList property. An image is set for the separate menu item by the MenuItem.ImageUrl property.

The checkbox is set in the case if the value for the MenuItem.Checked property is set.

The radio button is set for the menu items with the common group name.

A submenu can be set for each menu item using the MenuItem.Menu property.

The menu is displayed when calling the show method.

Example of Static Creating of the Menu

Example of Dynamic Creating of the Menu

Constructor

	Constructor name	Brief description
	Menu	The Menu constructor creates an instance of the Menucomponent.

Properties

	Property name	Brief description
	ImageList	The ImageList property sets a sprite for the menu.
	Items	The Items property sets an array of child items of the menu.
	ScrollHeight	The ScrollHeight property determines the height of the scrolled menu contents.
	ShowIcons	The ShowIcons property determines whether the left part of the icons menu is displayed.

Methods

	Method name	Brief description
	addItem	The addItem method adds a child item of the menu.
	clearCheckedByGroupName	The clearCheckedByGroupName method removes selection from menu items by group name.
	clearItems	The clearItems method removes menu child items.
	getMenuItemById	The getMenuItemById method returns the child item of the menu by its identifier.
	insertItem	The insertItem method inserts a menu item to the specified position.
	insertItemAfter	The insertItemAfter method inserts a menu item after the specified item.
	insertItemBefore	The insertItemBefore method inserts a menu item before the specified item.
	removeItem	The removeItem method removes a menu item.
	removeItemByIndex	The removeItemByIndex method removes the menu item by index.
	showContext	The showContext method shows a menu as a context menu.

Event

	Event name	Brief description
	ItemSelected	The ItemSelected event occurs on selecting a menu item.

Properties inherited from the DropPanel class

	Property name	Brief description
	EnableResize	The EnableResize property determines whether the component can be resized.
	EnableResizeBottom	The EnableResizeBottom property determines whether the component height can be changed by dragging its bottom border with the mouse cursor.
	EnableResizeLeft	The EnableResizeLeft property determines whether the component width can be changed by dragging its left border with the mouse cursor.
	EnableResizeRight	The EnableResizeRight property determines whether the component width can be changed by dragging its right border with the mouse cursor.
	EnableResizeTop	The EnableResizeTop property determines whether the component height can be changed by dragging its top border with the mouse cursor.
	EnableRestoreFocus	The EnableRestoreFocus property determines whether focus can be restored on closing the panel.
	MaxDropDownHeight	The MinDropDownHeight property sets minimum height for a drop-down panel.
	MaxDropDownWidth	The MaxDropDownWidth property sets maximum width for a drop-down panel.
	MinDropDownHeight	The MinDropDownHeight property sets minimum height for a drop-down panel.
	MinDropDownWidth	The MinDropDownWidth property sets minimum width for a drop-down panel.

Methods, inherited from the DropPanel class

	Method name	Brief description
	getDroppedDown	The getDroppedDown returns whether the panel is expanded.
	isVisibleArea	The isVisibleArea method determines whether the visible area includes the drop-down part.
	setPosition	The setPosition method sets the position of the drop-down panel.
	show	The show method expands the panel.

Events, inherited from the DropPanel class

	Event name	Brief description
	Closed	The Closed event occurs after closing the component.
	FrameDown	The FrameDown event occurs on clicking outside of the panel.
	Opened	The Opened event occurs after opening the component.
	Opening	The Opening event occurs before opening the component.
	OutOfPanelDown	The OutOfPanelDown event occurs on click outside the panel area if the panel is displayed without the support frame.
	SizeChanged	The SizeChanged event occurs after resizing the component.
	SizeChanging	The SizeChanging event occurs before resizing the component.

Properties inherited from the Control class

	Property name	Brief description
	Anchors	The Anchors property determines position of the component placed within container.
	Animation	The Animation property sets animation parameters for component.
	Bottom	The Bottom property sets bottom offset on placing the component within the LayoutPanel.
	Content	The Content property sets the component contents.
	ContextMenu	The ContextMenu property sets the context menu for the component.
	Data	The Data property is used to store any custom data.
	DataContext	The DataContext property contains an object with data.
	Enabled	The Enabled property sets whether the component is enabled.
	Height	The Height property determines the component height.
	IsResizable	The IsResizable property determines whether the component can be resized.
	IsRTL	The lsRTL property sets right to left text direction.
	IsVisible	The IsVisible property determines whether the component is displayed.
	Left	The Left property sets left offset on placing the component within the GridPanel.
	Offset	The Offset property determines coordinates of root DOM node of a control.
	Opacity	The Opacity property determines component transparency.
	Parent	The Parent property determines a parent component of a control.
	ParentNode	The ParentNode property sets parent DOM node.
	ResourceKey	The ResourceKey property sets the resource key for the component.
	Right	The Right property sets right offset on placing the component within the LayoutPanel.
	Rotate	The Rotate property sets component rotation angle.
	ShowToolTip	The ShowToolTip property determines whether the tooltip of the component can be displayed.
	Style	The Style property sets component style.
	TabIndex	The TabIndex property sets the order of the control element passing inside the container.
	Tag	The Tag property sets JSON object associated with the component.
	ToolTip	The ToolTip property determines text of component tooltip.
	Top	The Top property sets top offset on placing the component within the GridPanel.
	Value	The Value property sets the value to the component.
	Width	The Width property sets the component width.

Methods inherited from the Control class

	Method name	Brief description
	addClass	The addClass method adds a CSS class to the component.
	addEvent	The addEvent method adds an event handler to a DOM node.
	addEventHandler	The addEventHandler method adds an event handler to a DOM node.
	addEvents	The addEvents method adds an array of event handlers to a DOM node.
	addStateClass	The addStateClass method adds a CSS class to the component and removes the previous CSS class.
	addStyleBySelector	The addStyleBySelector method creates a block that contains a style with the specified CSS selector.
	addToNode	The addToNode method adds a component to the specified node.
	bindEvents	The bindEvents method subscribes an element to all available events.
	clearStylesCache	The clearStylesCache method clears cache of component styles.
	getAnchorFlags	The getAnchorFlags method returns JSON object that contains settings of the current component's position.
	getClass	The getClass method returns the current CSS classes of the component.
	getCssStyle	The getCssStyle method returns style for the specified node.
	getDomNode	The getDomNode method returns main DOM node of the component.
	getFocused	The getFocused method determines whether the component is focused.
	getFunctionByName	The getFunctionByName method returns function by name.
	getIsBinded	The getIsBinded method returns whether an element is subscribed to all DOM node events.
	hasClass	The hasClass method determines whether the specified CSS class is set for root DOM node of the control.
	hide	The hide method hides a control.
	hideToolTip	The hideToolTip method clears tooltip timeout and hides the tooltip if it is displayed.
	isResingNow	The isResingNow method determines whether the component is being resized.
	refreshBindingProperty	The refreshBindingProperty method refreshes the bound property by name.
	refreshItemsStyle	The refreshItemsStyle method refreshes CSS styles of child elements.
	refreshStyle	The refreshStyle method refreshes element CSS styles.
	removeClass	The removeClass method removes CSS class from the component.
	removeEvent	The removeEvent method removes event handler from DOM node.
	removeEventHandler	The removeEventHandler method removes event handler from DOM node.
	removeFromDOM	The removeFromDOM method removes node from the DOM structure.
	removeStateClasses	The removeStateClasses method removes CSS classes of the component.
	setDraggable	The setDraggable method determines whether it is possible to drag component on the HTML page.
	setFocus	The setFocus method sets the component focus.
	setIsHovered	The setIsHovered method displays the component as on hover.
	setIsPressed	The setIsPressed method displays the component as if clicked upon.
	setOpacityIE8	The setOpacityIE8 method sets component transparency value in Internet Explorer 8.
	setSize	The setSize method establishes the sizes of the component.
	show	The show method displays a control.
	unBindEvents	The unBindEvents method unsubscribes an element from all standard events.
	updatePosition	The updatePosition method updates size and position when absolute positioning based on the current parameters is used.
	updateSize	The updateSize method updates the component size on changing the size of the container that contains the component.

Events inherited from the Control class

	Event name	Brief description
	Drag	The Drag event occurs on clicking and holding the left mouse button.
	DragEnd	The DragEnd event occurs when dragging the component finishes.
	DragStart	The DragStart event occurs when dragging the component starts.
	OnContextMenu	The OnContextMenu event occurs on calling context menu of the component.
	SizeChanged	The SizeChanged event occurs after the component is resized.
	SizeChanging	The SizeChanging event occurs during component resize.

Properties inherited from the class Object

	Property name	Brief description
	Id	The Id property determines a repository object identifier.

Methods inherited from the class Object

	Method name	Brief description
	clone	The clone method creates an object copy.
	dispose	The dispose method deletes the component.
	getHashCode	The getHashCode method returns hash code of repository object.
	getSettings	The getSettings method returns repository object settings.
	getTypeName	The getTypeName method returns the name of the object type without the namespace, to which it belongs.
	isEqual	The isEqual method determines whether the specified object is equal to the current repository object.
	isLive	The isLive method determines validity of repository object.
	removeAllEvents	The removeAllEvents method removes all object event handlers by the specified context.
	setSettings	The setSettings method determines repository object settings.
	defineProps	The defineProps method creates get and set methods from name array for the specified class.
	keys	The keys method returns array of methods and properties names for the specified object.

See also:

DHTML Components