Apache flex datagrid中的复选框呈现 在这里输入代码

如何将所有选中的项目添加到一个新的数组中？请帮助我任何人

您可以在联系人类中添加一个附加字段-“已选中”或“已选中”-并在复选框的选择更改时使用itemRenderer设置此值。然后，您可以简单地通过contacts dataProvider进行循环，查看检查了哪些联系人

您可以这样做：

<mx:DataGrid id="dg" dataProvider="{cNumbersList}">
    <mx:columns>
        <mx:DataGridColumn dataField="contactName" headerText="Name" width="50"/>
        <mx:DataGridColumn dataField="contactNo" headerText="ContactNo" width="40"/>
        <mx:DataGridColumn  headerText="Select Contact Number" width="20">
            <mx:itemRenderer>
                <mx:Component>enter code here
                    <mx:CheckBox selected="false" />            
                </mx:Component>                        
            </mx:itemRenderer>                     
        </mx:DataGridColumn>                       
    </mx:columns>
</mx:DataGrid>  

---

渲染器获取联系人作为其数据。我还没有测试过这个，但原则上它应该可以工作。如果代码出现问题，请告诉我。

我们希望在datagrid中有一个复选框，允许多个选择。我们扩展了DataGrid对象：

<mx:Component>
   <mx:CheckBox id="contactCheckBox" selected="{data.contactSelected}" change="data.contactSelected = contactCheckBox.selected"/>            
</mx:Component>     

我们还创建了一个CheckboxRenderer：

package obj
{
import mx.controls.DataGrid;
import flash.display.Sprite;
import flash.events.KeyboardEvent;
import mx.controls.CheckBox;
import mx.controls.listClasses.IListItemRenderer;

public class CheckboxDataGrid extends DataGrid
{

    override protected function selectItem(item:IListItemRenderer,
                              shiftKey:Boolean, ctrlKey:Boolean,
                              transition:Boolean = true):Boolean
    {
        // only run selection code if a checkbox was hit and always
        // pretend we're using ctrl selection
        if (item is CheckBox)
            return super.selectItem(item, false, true, transition);
        return false;
    }

    // turn off selection indicator
    override protected function drawSelectionIndicator(
                                indicator:Sprite, x:Number, y:Number,
                                width:Number, height:Number, color:uint,
                                itemRenderer:IListItemRenderer):void
    {
    }

    // whenever we draw the renderer, make sure we re-eval the checked state
    override protected function drawItem(item:IListItemRenderer,
                                selected:Boolean = false,
                                highlighted:Boolean = false,
                                caret:Boolean = false,
                                transition:Boolean = false):void
    {
        CheckBox(item).invalidateProperties();
        super.drawItem(item, selected, highlighted, caret, transition);
    }

    // fake all keyboard interaction as if it had the ctrl key down
    override protected function keyDownHandler(event:KeyboardEvent):void
    {
        // this is technically illegal, but works
        event.ctrlKey = true;
        event.shiftKey = false;
        super.keyDownHandler(event);
    }

}
}

_EmailAddressIndexeSelected只是类中的一个数组对象，定义为：

private function emailAddressesSelected():void
{
_emailAddressIndexesSelected = notificationsCheckboxGrid.selectedIndices;
}

<obj:CheckboxDataGrid id="notificationsCheckboxGrid"
dataProvider="{_myModel._grid}"
allowMultipleSelection="true"
showHeaders="false"                            
change="emailAddressesSelected()">
<qmsAdmin:columns>                                     
    <mx:DataGridColumn width="20" sortable="false" itemRenderer="CheckBoxRenderer"/>
    <mx:DataGridColumn width="150" dataField="email"/>
    <mx:DataGridColumn dataField="notificationType"/>
</qmsAdmin:columns>     
</obj:CheckboxDataGrid>

private function emailAddressesSelected():void
{
_emailAddressIndexesSelected = notificationsCheckboxGrid.selectedIndices;
}

private var _emailAddressIndexesSelected:Array;