JavaScript/jQuery Draggable API
Draggable is a user interface utility that allows UI component elements to be dragged and dropped.
Options
This section describes properties that configure the Draggable UI component's contents, behavior, and appearance.
| Name | Description |
|---|---|
| autoScroll | Enables automatic scrolling while dragging an item beyond the viewport. |
| boundary | Specifies a DOM element that limits the dragging area. |
| clone | Allows a user to drag clones of items instead of actual items. |
| container | Specifies a custom container in which the draggable item should be rendered. |
| cursorOffset | Specifies the cursor offset from the dragged item. |
| data | A container for custom data. |
| dragComponent | An alias for the dragTemplate property specified in React. Accepts a custom component. Refer to Using a Custom Component for more information. |
| dragDirection | Specifies the directions in which an item can be dragged. |
| dragRender | An alias for the dragTemplate property specified in React. Accepts a rendering function. Refer to Using a Rendering Function for more information. |
| dragTemplate | Specifies custom markup to be shown instead of the item being dragged. |
| elementAttr | Specifies the global attributes to be attached to the UI component's container element. |
| group | Allows you to group several UI components, so that users can drag and drop items between them. |
| handle | Specifies a CSS selector (ID or class) that should act as the drag handle(s) for the item(s). |
| height | Specifies the UI component's height. |
| onDisposing | A function that is executed before the UI component is disposed of. |
| onDragEnd | A function that is called when a drag gesture is finished. |
| onDragMove | A function that is called every time a draggable item is moved. |
| onDragStart | A function that is called when a drag gesture is initialized. |
| onInitialized | A function used in JavaScript frameworks to save the UI component instance. |
| onOptionChanged | A function that is executed after a UI component property is changed. |
| rtlEnabled | Switches the UI component to a right-to-left representation. |
| scrollSensitivity | Specifies the distance in pixels from the edge of viewport at which scrolling should start. Applies only if autoScroll is true. |
| scrollSpeed | Specifies the scrolling speed when dragging an item beyond the viewport. Applies only if autoScroll is true. |
| width | Specifies the UI component's width. |
See Also
Methods
Methods of the DomComponent object.
| Name | Description |
|---|---|
| beginUpdate() | Postpones rendering that can negatively affect performance until the endUpdate() method is called. |
| defaultOptions(rule) | Specifies the device-dependent default configuration properties for this component. |
| dispose() | Disposes of all the resources allocated to the Draggable instance. |
| element() | Gets the root UI component element. |
| endUpdate() | Refreshes the UI component after a call of the beginUpdate() method. |
| getInstance(element) | Gets the instance of a UI component found using its DOM node. |
| instance() | Gets the UI component's instance. Use it to access other methods of the UI component. |
| off(eventName) | Detaches all event handlers from a single event. |
| off(eventName, eventHandler) | Detaches a particular event handler from a single event. |
| on(eventName, eventHandler) | Subscribes to an event. |
| on(events) | Subscribes to events. |
| option() | Gets all UI component properties. |
| option(optionName) | Gets the value of a single property. |
| option(optionName, optionValue) | Updates the value of a single property. |
| option(options) | Updates the values of several properties. |
| resetOption(optionName) | Resets a property to its default value. |
Events
This section describes events raised by the Draggable UI component.
| Name | Description |
|---|---|
| disposing | Raised before the UI component is disposed of. |
| dragEnd | Raised when drag gesture is finished. |
| dragMove | Raised every time a draggable item is moved. |
| dragStart | Raised when drag gesture is initialized. |
| initialized | Raised only once, after the UI component is initialized. |
| optionChanged | Raised after a UI component property is changed. |
See Also
Types
| Name | Description |
|---|---|
| DisposingEvent | The type of the disposing event handler's argument. |
| DragEndEvent | The type of the dragEnd event handler's argument. |
| DragMoveEvent | The type of the dragMove event handler's argument. |
| DragStartEvent | The type of the dragStart event handler's argument. |
| InitializedEvent | The type of the initialized event handler's argument. |
| OptionChangedEvent | The type of the optionChanged event handler's argument. |