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IGridItemEditor

Package | spark.components.gridClasses
Interface | public interface IGridItemEditor extends IDataRenderer, IVisualElement, IFocusManagerComponent, IIMESupport, ILayoutElement, ILayoutDirectionElement, flash.events.IEventDispatcher
Implementors | GridItemEditor

Language Version : | ActionScript 3.0

Product Version : | Flex 4.5

Runtime Versions : | Flash Player 10, AIR 2.5

The IGridItemEditor interface defines the interface that item editors for the Spark DataGrid and Spark Grid controls must implement. The DataGrid and Grid controls are referred to as the item renderer owner, or as the host component of the item editor.

All of the item editor's properties are set by the owner during the start of the editor session. The `data` property is the last property set. When the `data` property is set, an item editor should set the value of the editor's controls. Next, the editor's `prepare()` method is called. IGridItemEditor implementations should override the `prepare()` method to make any final adjustments to its properties or any aspect of its visual elements. When the editor is closing, the `discard()` method is called.

When the editor is closed, the input value can be saved or canceled. If saving, the `save()` function is called by the editor to write new values to the data provider element corresponding to the row of the edited cell.

See also

spark.components.DataGrid
spark.components.Grid

Public Properties
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| Property | Defined By
--- | --- | ---
|  | alpha : Number | IVisualElement
|  | baseline : Object The vertical distance in pixels from the anchor target to the control's baseline position. | ILayoutElement
|  | baselinePosition : Number [read-only] The y-coordinate of the baseline of the first line of text of the component. | ILayoutElement
|  | bottom : Object The vertical distance in pixels from the bottom edge of the component to the anchor target's bottom edge. | ILayoutElement
|  | column : GridColumn The column of the cell being edited. | IGridItemEditor
|  | columnIndex : int [read-only] The zero-based index of the column being edited. | IGridItemEditor
|  | data : Object The data to render or edit. | IDataRenderer
|  | dataGrid : DataGrid [read-only] The control that owns this item editor. | IGridItemEditor
|  | depth : Number Determines the order in which items inside of containers are rendered. | IVisualElement
|  | designLayer : DesignLayer Specifies the optional DesignLayer instance associated with this visual element. | IVisualElement
|  | enableIME : Boolean [read-only] Specifies whether the IME should be enabled when this component has focus. | IIMESupport
|  | focusEnabled : Boolean A flag that indicates whether the component can receive focus when selected. | IFocusManagerComponent
|  | hasFocusableChildren : Boolean A flag that indicates whether child objects can receive focus. | IFocusManagerComponent
|  | hasLayoutMatrix3D : Boolean [read-only] Contains true if the element has 3D Matrix. | ILayoutElement
|  | height : Number | IVisualElement
|  | horizontalCenter : Object The horizontal distance in pixels from the center of the component to the center of the anchor target's content area. | ILayoutElement
|  | imeMode : String The IME mode of the component. | IIMESupport
|  | includeInLayout : Boolean Specifies whether this component is included in the layout of the parent container. | ILayoutElement
|  | is3D : Boolean [read-only] Contains true when the element is in 3D. | IVisualElement
|  | layoutDirection : String Specifies the desired layout direction for an element: one of LayoutDirection.LTR (left to right), LayoutDirection.RTL (right to left), or null (inherit). | ILayoutDirectionElement
|  | left : Object The horizontal distance in pixels from the left edge of the component to the anchor target's left edge. | ILayoutElement
|  | mouseFocusEnabled : Boolean [read-only] A flag that indicates whether the component can receive focus when selected with the mouse. | IFocusManagerComponent
|  | owner : DisplayObjectContainer The owner of this IVisualElement object. | IVisualElement
|  | parent : DisplayObjectContainer [read-only] The parent container or component for this component. | IVisualElement
|  | percentHeight : Number Specifies the height of a component as a percentage of its parent's size. | ILayoutElement
|  | percentWidth : Number Specifies the width of a component as a percentage of its parent's size. | ILayoutElement
|  | postLayoutTransformOffsets : TransformOffsets Defines a set of adjustments that can be applied to the object's transform in a way that is invisible to its parent's layout. | IVisualElement
|  | right : Object The horizontal distance in pixels from the right edge of the component to the anchor target's right edge. | ILayoutElement
|  | rowIndex : int The zero-based index of the row of the cell being edited. | IGridItemEditor
|  | tabFocusEnabled : Boolean [read-only] A flag that indicates whether pressing the Tab key eventually moves focus to this component. | IFocusManagerComponent
|  | tabIndex : int If tabFocusEnabled, the order in which the component receives focus. | IFocusManagerComponent
|  | top : Object The vertical distance in pixels from the top edge of the component to the anchor target's top edge. | ILayoutElement
|  | verticalCenter : Object The vertical distance in pixels from the center of the component to the center of the anchor target's content area. | ILayoutElement
|  | visible : Boolean Controls the visibility of this visual element. | IVisualElement
|  | width : Number | IVisualElement
|  | x : Number | IVisualElement
|  | y : Number | IVisualElement

Public Methods
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| Method | Defined By
--- | --- | ---
|  | cancel():Boolean Called by the DataGrid when an open editor is being closed without saving the data in the editor. | IGridItemEditor
|  | discard():void Called just before the editor is closed. | IGridItemEditor
|  | drawFocus(isFocused:Boolean):void Called by the FocusManager when the component receives focus. | IFocusManagerComponent
|  | getBoundsXAtSize(width:Number, height:Number, postLayoutTransform:Boolean = true):Number Returns the x coordinate of the element's bounds at the specified element size. | ILayoutElement
|  | getBoundsYAtSize(width:Number, height:Number, postLayoutTransform:Boolean = true):Number Returns the y coordinate of the element's bounds at the specified element size. | ILayoutElement
|  | getLayoutBoundsHeight(postLayoutTransform:Boolean = true):Number Returns the element's layout height. | ILayoutElement
|  | getLayoutBoundsWidth(postLayoutTransform:Boolean = true):Number Returns the element's layout width. | ILayoutElement
|  | getLayoutBoundsX(postLayoutTransform:Boolean = true):Number Returns the x coordinate that the element uses to draw on screen. | ILayoutElement
|  | getLayoutBoundsY(postLayoutTransform:Boolean = true):Number Returns the y coordinate that the element uses to draw on screen. | ILayoutElement
|  | getLayoutMatrix():Matrix Returns the transform matrix that is used to calculate the component's layout relative to its siblings. | ILayoutElement
|  | getLayoutMatrix3D():Matrix3D Returns the layout transform Matrix3D for this element. | ILayoutElement
|  | getMaxBoundsHeight(postLayoutTransform:Boolean = true):Number Returns the element's maximum height. | ILayoutElement
|  | getMaxBoundsWidth(postLayoutTransform:Boolean = true):Number Returns the element's maximum width. | ILayoutElement
|  | getMinBoundsHeight(postLayoutTransform:Boolean = true):Number Returns the element's minimum height. | ILayoutElement
|  | getMinBoundsWidth(postLayoutTransform:Boolean = true):Number Returns the element's minimum width. | ILayoutElement
|  | getPreferredBoundsHeight(postLayoutTransform:Boolean = true):Number Returns the element's preferred height. | ILayoutElement
|  | getPreferredBoundsWidth(postLayoutTransform:Boolean = true):Number Returns the element's preferred width. | ILayoutElement
|  | invalidateLayoutDirection():void An element must call this method when its layoutDirection changes or when its parent's layoutDirection changes. | ILayoutDirectionElement
|  | prepare():void Called after the editor has been created and sized but before the editor is visible. | IGridItemEditor
|  | save():Boolean Saves the value in the editor to the data provider of the item renderer's owner. | IGridItemEditor
|  | setFocus():void Called by the FocusManager when the component receives focus. | IFocusManagerComponent
|  | setLayoutBoundsPosition(x:Number, y:Number, postLayoutTransform:Boolean = true):void Sets the coordinates that the element uses to draw on screen. | ILayoutElement
|  | setLayoutBoundsSize(width:Number, height:Number, postLayoutTransform:Boolean = true):void Sets the layout size of the element. | ILayoutElement
|  | setLayoutMatrix(value:Matrix, invalidateLayout:Boolean):void Sets the transform Matrix that is used to calculate the component's layout size and position relative to its siblings. | ILayoutElement
|  | setLayoutMatrix3D(value:Matrix3D, invalidateLayout:Boolean):void Sets the transform Matrix3D that is used to calculate the component's layout size and position relative to its siblings. | ILayoutElement
|  | transformAround(transformCenter:Vector3D, scale:Vector3D = null, rotation:Vector3D = null, translation:Vector3D = null, postLayoutScale:Vector3D = null, postLayoutRotation:Vector3D = null, postLayoutTranslation:Vector3D = null, invalidateLayout:Boolean = true):void A utility method to update the rotation, scale, and translation of the transform while keeping a particular point, specified in the component's own coordinate space, fixed in the parent's coordinate space. | ILayoutElement

Property Detail

column | property

`column:GridColumn`

Language Version : | ActionScript 3.0

Product Version : | Flex 4.5

Runtime Versions : | Flash Player 10, AIR 2.5

The column of the cell being edited.

Implementation
`public function get column():GridColumn`
`public function set column(value:GridColumn):void`

columnIndex | property |

`columnIndex:int` [read-only]

Language Version : | ActionScript 3.0

Product Version : | Flex 4.5

Runtime Versions : | Flash Player 10, AIR 2.5

The zero-based index of the column being edited.

Implementation
`public function get columnIndex():int`

dataGrid | property |

`dataGrid:DataGrid` [read-only]

Language Version : | ActionScript 3.0

Product Version : | Flex 4.5

Runtime Versions : | Flash Player 10, AIR 2.5

The control that owns this item editor.

Implementation
`public function get dataGrid():DataGrid`

rowIndex | property |

`rowIndex:int`

Language Version : | ActionScript 3.0

Product Version : | Flex 4.5

Runtime Versions : | Flash Player 10, AIR 2.5

The zero-based index of the row of the cell being edited.

Implementation
`public function get rowIndex():int`
`public function set rowIndex(value:int):void`
Method Detail

cancel | () | method

`public function cancel():Boolean`

Language Version : | ActionScript 3.0

Product Version : | Flex 4.5

Runtime Versions : | Flash Player 10, AIR 2.5

Called by the DataGrid when an open editor is being closed without saving the data in the editor. Closing the editor may be prevented by returning `false` .

Do not call this method directly. It should only be called by the control hosting the item editor. To close the editor without saving its data, call the `endItemEditorSession()` method with the `cancel` parameter set to `true`.

Returns

| `Boolean` — `true` to close the editor without saving its data. Return `false` to prevent the editor from closing.

See also

spark.components.DataGrid

discard | () | method |

`public function discard():void`

Language Version : | ActionScript 3.0

Product Version : | Flex 4.5

Runtime Versions : | Flash Player 10, AIR 2.5

Called just before the editor is closed. Use this method to perform any final cleanup, such as cleaning up anything that was set in the `prepare()` method.

Do not call this method directly. It should only be called by the control hosting the item editor.

prepare | () | method |

`public function prepare():void`

Language Version : | ActionScript 3.0

Product Version : | Flex 4.5

Runtime Versions : | Flash Player 10, AIR 2.5

Called after the editor has been created and sized but before the editor is visible. Use this method to adjust the appearance of the editor, add event listeners, or perform any other initializations before it becomes visible.

Do not call this method directly. It should only be called by the control hosting the item editor.

save | () | method |

`public function save():Boolean`

Language Version : | ActionScript 3.0

Product Version : | Flex 4.5

Runtime Versions : | Flash Player 10, AIR 2.5

Saves the value in the editor to the data provider of the item renderer's owner. This method updates the data provider element corresponding to the row of the edited cell. This function calls `GridItemEditor.validate()` to verify the data may be saved. If the data is not valid, then the data is not saved and the editor is not closed.

Do not call this method directly. It should only be called by the control hosting the item editor. To save and close the editor, call the `endItemEditorSession()` method of the item renderer owner.

Returns

| `Boolean` — `true` if the save operation succeeded, and `false` if not.

See also

spark.components.DataGrid

Wed Nov 15 2017, 09:50 AM +01:00