| Paket | mx.managers |
| Klass | public class DragManager |
| Arv | DragManager  Object |
| Språkversion: | ActionScript 3.0 |
| Produktversion: | Flex 3 |
| Körningsmiljöversioner: | Flash Player 9, AIR 1.1 |
All methods and properties of the DragManager are static, so you do not need to create an instance of it.
All Flex components support drag and drop operations. Flex provides additional support for drag and drop to the List, Tree, and DataGrid controls.
When the user selects an item with the mouse, the selected component is called the drag initiator. The image displayed during the drag operation is called the drag proxy.
When the user moves the drag proxy over another component,
the dragEnter event is sent to that component.
If the component accepts the drag, it becomes the drop target
and receives dragOver, dragExit,
and dragDrop events.
When the drag is complete, a dragComplete event
is sent to the drag initiator.
Fler exempel
Dragging and dropping in multi-versioned applications
The drag-and-drop operation
Relaterade API-element
Dölj ärvda publika egenskaper
Visa ärvda publika egenskaper| Egenskap | Definieras med | ||
|---|---|---|---|
 | constructor : Object
En referens till klassobjektet eller konstruktorfunktionen för en given objektinstans. | Object | |
| isDragging : Boolean [statisk] [skrivskyddad]
Read-only property that returns true
if a drag is in progress. | DragManager | ||
| Metod | Definieras med | ||
|---|---|---|---|
[statisk]
Call this method from your dragEnter event handler if you accept
the drag/drop data. | DragManager | ||
doDrag(dragInitiator:IUIComponent, dragSource:DragSource, mouseEvent:MouseEvent, dragImage:IFlexDisplayObject = null, xOffset:Number = 0, yOffset:Number = 0, imageAlpha:Number = 0.5, allowMove:Boolean = true):void [statisk]
Initiates a drag and drop operation. | DragManager | ||
[statisk]
Returns the current drag and drop feedback. | DragManager | ||
|
Anger om det finns en egenskap angiven för ett objekt. | Object | |
|
Anger om en instans av klassen Object finns i prototypkedjan för objektet som anges som parameter. | Object | |
|
Anger om den angivna egenskapen finns och är uppräkningsbar. | Object | |
|
Anger tillgänglighet för en dynamisk egenskap för slingåtgärder. | Object | |
[statisk]
Sets the feedback indicator for the drag and drop operation. | DragManager | ||
|
Returnerar det här objektets strängrepresentation, formaterad i enlighet med språkspecifika konventioner. | Object | |
|
Returnerar det angivna objektets strängbeteckning. | Object | |
|
Returnerar det angivna objektets primitiva värde. | Object | |
Format är antingen allmänna eller kopplade till ett visst tema. Om formatet är allmänt kan det användas med alla teman. Om ett format är kopplat till ett visst tema kan det bara användas om programmet använder just det temat.
| Format | Beskrivning | Definieras med | ||
|---|---|---|---|---|
copyCursor | Typ: Class CSS-arv: Nej Språkversion: ActionScript 3.0 Produktversion: Flex 3 Körningsmiljöversioner: Flash9, AIR 1.1 Cursor displayed during a copy operation. The default value is the "mx.skins.cursor.DragCopy" symbol in the Assets.swf file. | DragManager | ||
defaultDragImageSkin | Typ: Class CSS-arv: Nej Språkversion: ActionScript 3.0 Produktversion: Flex 3 Körningsmiljöversioner: Flash9, AIR 1.1 Skin used to draw the default drag image, which is also called the drag proxy. Standardvärdet är mx.skins.halo.DefaultDragImage (for both Halo and Spark themes). | DragManager | ||
linkCursor | Typ: Class CSS-arv: Nej Språkversion: ActionScript 3.0 Produktversion: Flex 3 Körningsmiljöversioner: Flash9, AIR 1.1 Cursor displayed during a link operation. The default value is the "mx.skins.cursor.DragLink" symbol in the Assets.swf file. | DragManager | ||
moveCursor | Typ: Class CSS-arv: Nej Språkversion: ActionScript 3.0 Produktversion: Flex 3 Körningsmiljöversioner: Flash9, AIR 1.1 Cursor displayed during a move operation. The default value is the "mx.skins.cursor.DragMove" symbol in the Assets.swf file. | DragManager | ||
rejectCursor | Typ: Class CSS-arv: Nej Språkversion: ActionScript 3.0 Produktversion: Flex 3 Körningsmiljöversioner: Flash9, AIR 1.1 Cursor displayed for a reject operation. The default value is the "mx.skins.cursor.DragReject" symbol in the Assets.swf file. | DragManager | ||
| Konstant | Definieras med | ||
|---|---|---|---|
| COPY : String = "copy" [statisk]
Constant that specifies that the type of drag action is "copy". | DragManager | ||
| LINK : String = "link" [statisk]
Constant that specifies that the type of drag action is "link". | DragManager | ||
| MOVE : String = "move" [statisk]
Constant that specifies that the type of drag action is "move". | DragManager | ||
| NONE : String = "none" [statisk]
Constant that specifies that the type of drag action is "none". | DragManager | ||
isDragging | egenskap |
acceptDragDrop | () | metod |
public static function acceptDragDrop(target:IUIComponent):void| Språkversion: | ActionScript 3.0 |
| Produktversion: | Flex 3 |
| Körningsmiljöversioner: | Flash Player 9, AIR 1.1 |
Call this method from your dragEnter event handler if you accept
the drag/drop data.
Typically, you cast event.target to the data type of the drop target.
In the following example, the drop target is an MX Canvas container:
DragManager.acceptDragDrop(Canvas(event.target));
Parametrar
target:IUIComponent — The drop target accepting the drag.
|
doDrag | () | metod |
public static function doDrag(dragInitiator:IUIComponent, dragSource:DragSource, mouseEvent:MouseEvent, dragImage:IFlexDisplayObject = null, xOffset:Number = 0, yOffset:Number = 0, imageAlpha:Number = 0.5, allowMove:Boolean = true):void| Språkversion: | ActionScript 3.0 |
| Produktversion: | Flex 3 |
| Körningsmiljöversioner: | Flash Player 9, AIR 1.1 |
Initiates a drag and drop operation.
Parametrar
dragInitiator:IUIComponent — IUIComponent that specifies the component initiating
the drag.
| |
dragSource:DragSource — DragSource object that contains the data
being dragged.
| |
mouseEvent:MouseEvent — The MouseEvent that contains the mouse information
for the start of the drag.
| |
dragImage:IFlexDisplayObject (default = null) | |
xOffset:Number (default = 0)dragImage. This argument is optional. If omitted, the drag proxy
is shown at the upper-left corner of the drag initiator. The offset is expressed
in pixels from the left edge of the drag proxy to the left edge of the drag
initiator, and is usually a negative number.
| |
yOffset:Number (default = 0)dragImage. This argument is optional. If omitted, the drag proxy
is shown at the upper-left corner of the drag initiator. The offset is expressed
in pixels from the top edge of the drag proxy to the top edge of the drag
initiator, and is usually a negative number.
| |
imageAlpha:Number (default = 0.5) | |
allowMove:Boolean (default = true) |
getFeedback | () | metod |
public static function getFeedback():String| Språkversion: | ActionScript 3.0 |
| Produktversion: | Flex 3 |
| Körningsmiljöversioner: | Flash Player 9, AIR 1.1 |
Returns the current drag and drop feedback.
ReturnerarString — Possible return values are DragManager.COPY,
DragManager.MOVE,
DragManager.LINK, or DragManager.NONE.
|
showFeedback | () | metod |
public static function showFeedback(feedback:String):void| Språkversion: | ActionScript 3.0 |
| Produktversion: | Flex 3 |
| Körningsmiljöversioner: | Flash Player 9, AIR 1.1 |
Sets the feedback indicator for the drag and drop operation.
Possible values are DragManager.COPY, DragManager.MOVE,
DragManager.LINK, or DragManager.NONE.
Parametrar
feedback:String — The type of feedback indicator to display.
|
COPY | Konstant |
public static const COPY:String = "copy"| Språkversion: | ActionScript 3.0 |
| Produktversion: | Flex 3 |
| Körningsmiljöversioner: | Flash Player 9, AIR 1.1 |
Constant that specifies that the type of drag action is "copy".
LINK | Konstant |
public static const LINK:String = "link"| Språkversion: | ActionScript 3.0 |
| Produktversion: | Flex 3 |
| Körningsmiljöversioner: | Flash Player 9, AIR 1.1 |
Constant that specifies that the type of drag action is "link".
MOVE | Konstant |
public static const MOVE:String = "move"| Språkversion: | ActionScript 3.0 |
| Produktversion: | Flex 3 |
| Körningsmiljöversioner: | Flash Player 9, AIR 1.1 |
Constant that specifies that the type of drag action is "move".
NONE | Konstant |
public static const NONE:String = "none"| Språkversion: | ActionScript 3.0 |
| Produktversion: | Flex 3 |
| Körningsmiljöversioner: | Flash Player 9, AIR 1.1 |
Constant that specifies that the type of drag action is "none".
Tue Jun 12 2018, 01:40 PM Z