flex实现DataGrid高亮显示数据功能的解决方案

复制代码 代码如下:

package org.lxh 
{    
    import flash.display.Sprite; 
    import mx.controls.DataGrid; 
    public class SpecialDataGrid extends DataGrid 
    { 
        private var _rowColorFunction:Function;   //用于在外部能通过指定一个方法 去实现改变列的背景色 
        public function SpecialDataGrid() 
        { 
            super(); 
        } 
        public function set rowColorFunction(f:Function):void 
        { 
            this._rowColorFunction = f; 
        } 
        public function get rowColorFunction():Function 
        { 
            return this._rowColorFunction; 
        } 
        //复写该方法 
        override protected function drawRowBackground(s:Sprite,rowIndex:int,y:Number, height:Number, color:uint, dataIndex:int):void 
        { 
            if( this.rowColorFunction != null ){ 
                if( dataIndex < this.dataProvider.length ){ 
                    var item:Object = this.dataProvider.getItemAt(dataIndex); 
                    color = this.rowColorFunction.call(this, item, color); 
                } 
            }            
            super.drawRowBackground(s, rowIndex, y, height, color, dataIndex); 
        } 
    } 
}

复制代码 代码如下:

<control:SpecialDataGrid   alternatingItemColors="[0xe3eaf2,0xe8f1f8]" dataProvider="{strArray}" rowColorFunction="colorFunction" doubleClick="planDataGrid_doubleClickHandler(event)" doubleClickEnabled="true"> 
                        <control:columns> 
                            <mx:DataGridColumn dataField="选择" sortable="false" resizable="false"  showDataTips="true"> 
                                <mx:itemRenderer> 
                                    <fx:Component> 
                                        <mx:CheckBox change="outerDocument.checkChangeHandlerForPlan(event)"/> 
                                    </fx:Component> 
                                </mx:itemRenderer> 
                            </mx:DataGridColumn> 
                        <mx:DataGridColumn dataField="id" headerText="主键" visible="false"/> 

                        </control:columns> 
                    </control:SpecialDataGrid>

复制代码 代码如下:

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