Flex ArrayCollection中Object 属性重新赋值

叁歲伎倆 2022-09-29 06:34 156阅读 0赞

1.假如ArrayCollection如下

var arrDataList:ArrayCollection=new ArrayCollection();
    var item:Object=new Object();
    item.BANK_ABSTRACT="银行对账单余额";
    item.BANK_POSTINGDATE="";
    item.BANK_DOCNUM="";
    item.BANK_MONEY=bankBalance;
    item.BANK_REASON="";
    item.COMPANY_ABSTRACT="公司银行存款账面余额";
    item.COMPANY_POSTINGDATE="";
    item.COMPANY_DOCNUM="";
    item.COMPANY_MONEY=bookBalance;
    item.COMPANY_REASON="";

2.DataGrid定义如下：

<mx:AdvancedDataGrid id="datagrid" width="100%" height="200" dataProvider="{arrDataList}"
    				verticalScrollPolicy="auto" editable="true" itemEditEnd="onItemEditEnd(event)">
    				<mx:groupedColumns>
    					<mx:AdvancedDataGridColumnGroup headerText="银行">
    						<mx:AdvancedDataGridColumn headerText="摘要" dataField="BANK_ABSTRACT">
    							
    						</mx:AdvancedDataGridColumn>
    						<mx:AdvancedDataGridColumn headerText="入账日期" dataField="BANK_POSTINGDATE"/>
    						<mx:AdvancedDataGridColumn headerText="原始单据号码" dataField="BANK_DOCNUM"/>
    						<mx:AdvancedDataGridColumn headerText="金额（元）" dataField="BANK_MONEY"/>
    						<mx:AdvancedDataGridColumn headerText="未达原因" dataField="BANK_REASON"/>
    					</mx:AdvancedDataGridColumnGroup>
    					<mx:AdvancedDataGridColumnGroup headerText="公司">
    						<mx:AdvancedDataGridColumn headerText="摘要" dataField="COMPANY_ABSTRACT"/>
    						<mx:AdvancedDataGridColumn headerText="入账日期" dataField="COMPANY_POSTINGDATE"/>
    						<mx:AdvancedDataGridColumn headerText="原始单据号码" dataField="COMPANY_DOCNUM"/>
    						<mx:AdvancedDataGridColumn headerText="金额（元）" dataField="COMPANY_MONEY"/>
    						<mx:AdvancedDataGridColumn headerText="未达原因" dataField="COMPANY_REASON"/>
    					</mx:AdvancedDataGridColumnGroup>
    					<mx:AdvancedDataGridColumn headerText="操作"/>
    				</mx:groupedColumns>
    			</mx:AdvancedDataGrid>

3.DataGrid单元格编辑后需要获取新值，并把新值更新到ArrayCollection中，那么，DataGrid单元格编辑完成后事件方法如下：

private function onItemEditEnd(event:AdvancedDataGridEvent):void{
         			var col:AdvancedDataGridColumn=datagrid.columns[event.columnIndex];
    				var newValue:String=datagrid.itemEditorInstance[col.editorDataField];
    				var dsFieldName:String=event.dataField;
    				arrDataList.getItemAt(event.rowIndex)[dsFieldName]=newValue;
         		}

注意上面 arrDataList.getItemAt(event.rowIndex)\[dsFieldName\]=newValue;代码部分，动态给属性重新赋值时，需要用\[\]把属性变量括起来。