Flex4 DataGrid中如何嵌入RadioButton(flexform中国官网)深度揭秘

随心笔谈3年前发布 admin
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文章摘要

本文描述了一个Flex应用中使用prepare方法控制radio_button选中状态的实现。prepare方法通过检查dataGrid中的selectedItems,动态地设置radio_button的selected属性。此外,该radio_button被禁用以防止用户直接点击操作。文章重点展示了如何利用prepare方法实现动态选中状态控制,以及如何通过禁用属性确保用户交互不可用。

xmlns:s=”library://ns.adobe.com/flex/spark”

xmlns:mx=”library://ns.adobe.com/flex/mx”>

//———————————————————————————————————-

override public function prepare(hasBeenRecycled:Boolean):void

{

super.prepare( hasBeenRecycled );

// We make the radio button mimic the selection status of the whole row.

const selected_items: Vector.=grid.dataGrid.selectedItems;

if( null==selected_items )

{

radio_button.selected=false;

return;

}

if( -1 !=selected_items.indexOf( data ) )

radio_button.selected=true;

else

radio_button.selected=false;

}

//———————————————————————————————————-

]]>

The “selected” property of the radio_button will be controlled by the “prepare” function.

The radio_button should not be allowed any user interaction. Hence disabling it.–>

label=””

enabled=”false”

horizontalCenter=”0″ verticalCenter=”0″ />

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