Question

我有一个关于从我在数据网格中添加的控件值获取的快速问题项目渲染以及如何在单击该列的单元格时获取该控制对象。

Answer 1

您可以通过此

访问

<mx:DataGrid id="fileGrid" click="onClick(event)" dataProvider="{grpCollection}" width="100%" height="100%">
            <mx:columns>
                <mx:DataGridColumn dataField="labelText" headerText="" visible="{!readOnly}" width="100">
                    <mx:itemRenderer>
                        <mx:Component>
                            <renderers:LinkRendererWithEvent/>
                        </mx:Component>
                    </mx:itemRenderer>
                </mx:DataGridColumn>                    
            </mx:columns>
        </mx:DataGrid>

private function onClick(event:MouseEvent):void
            {
                if (event.target is LinkRendererWithEvent)
                {
                    var linkRenderer:LinkRendererWithEvent = event.target as LinkRendererWithEvent;
                    if (linkRenderer.linkBut.label == "Add")
                    {

                    }
                }
            }

LinkRendererWithEvent.mxml

<?xml version="1.0" encoding="utf-8"?>
<mx:VBox xmlns:mx="http://www.adobe.com/2006/mxml" width="100%" height="100%" doubleClickEnabled="true" doubleClick="doubleClickHandler()" 
    implements="mx.controls.listClasses.IDropInListItemRenderer">
    <mx:Script>
        <![CDATA[
            import mx.controls.Button;
            import mx.controls.DataGrid;
            import mx.events.FlexEvent;
            import com.barcap.customui.constant.NotificationNames;
            import com.barcap.customui.ApplicationFacade;
            import mx.controls.dataGridClasses.DataGridListData;
            import flash.events.Event;
            import mx.controls.listClasses.BaseListData;
            import mx.controls.dataGridClasses.DataGridListData;
            protected var _listData:DataGridListData;

            [Bindable]
            public var labelField:String;
            public var notificationName:String;


            override public function setFocus():void
            {
                trace("called ");
            }

            private function clickHandler(event:MouseEvent):void
            {
                dispatchEvent(event);
            }

            private function doubleClickHandler():void
            {
                owner.dispatchEvent(new MouseEvent(MouseEvent.DOUBLE_CLICK, false, false));
            }

            override public function set data(value:Object):void
            {
                super.data = value;
                setIt(value);
            }

            public function get listData():BaseListData
            {
                return _listData;
            }

            public function set listData(value:BaseListData):void
            {
                _listData = DataGridListData(value);
                invalidateProperties();
            }

            private function setIt(value:Object):void
            {
                if (value && _listData)
                {
                    linkBut.label = value[_listData.dataField];
                }
                else
                {
                    linkBut.label = "";
                }
            }

            override public function drawFocus(isFocused:Boolean):void
            {
                trace("Enter drawFocus");
            }
        ]]>
    </mx:Script>
    <mx:LinkButton id="linkBut" textDecoration="underline" click="clickHandler(event)"/>
</mx:VBox>

Flex DataGrid - 我们如何从单元格获取自定义控件的对象

1 个答案: