Flex重写DataGridColumn dataField支持对象嵌套

发布时间：2020-12-15 01:10:02 所属栏目：百科来源：网络整理

导读：package common { ?import mx.controls.dataGridClasses.DataGridColumn; ?public class ObjectNestedColumn extends DataGridColumn ?{ ??public function ObjectNestedColumn(columnName:String=null){ ???super(columnName); ??} ??override public funct

package common { ?import mx.controls.dataGridClasses.DataGridColumn; ?public class ObjectNestedColumn extends DataGridColumn ?{ ??public function ObjectNestedColumn(columnName:String=null){ ???super(columnName); ??} ??override public function itemToLabel(data:Object):String{ ???if (dataField.indexOf(".") != -1){ ????var fields:Array = dataField.split("."); ????var currentData:Object=data; ????if(currentData!=null){ ???? ???????? currentData=splitData(currentData,dataField); ???? ???????? currentData=currentData[fields[fields.length-1]]; ?????? } ????????? var label:String; ????????? if (currentData is String){ ????????????? label = String(currentData); ????????? } ????????? try{ ????????????? label = currentData.toString(); ????????? }catch(e:Error){ ????????? ?return ""; ????????? } ???????? ?return label; ?? ??} ????? return super.itemToLabel(data); ??? } ??? public function splitData(currentData:Object,srcField:String):Object{ ??? ??? var currentData:Object=currentData; ??? ??? if(srcField.indexOf(".")!=-1){ ??? ??? ??var field:String=""; ??? ??? ??var subfield:String=""; ??? ???? ?field=srcField.substr(0,srcField.indexOf(".")+1).replace(".",""); ???????????currentData=currentData[field]; ??????????subfield=srcField.substr(srcField.indexOf(".")+1,srcField.length); ??? ???? ?return splitData(currentData,subfield); ??? ??? }else{ ??? ??? ??return currentData; ??? ??? } ??? } ?} }

（编辑：李大同）

【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容!