Hi.
I'm trying to use RadioButtons in DataGrid to select some row. One of
data entries that populate DataGrid is already selected. Say we've got
dataProvider of entries {someData : Object, selected : Boolean}. One
of entries has selected == true others are false.
The DataGrid itself is in ViewStack. When I switch selectedChild the
DataGrid is created and populated with data.
One of columns is RadioButton (item renderer derived from
RadioButton). I override data setter and in it set selected property
for this RadioButton depending on data set.
The problem is -- RadioButtons are always DEselected after creation.
Is there any way to make one of those RadioButtons selected?
Below is simple example that demonstrates the problem.
RadioButtonItemRenderer.as:
package {
import mx.controls.RadioButton;
public class RadioButtonItemRenderer extends RadioButton {
public override function set data(value : Object) : void {
selected = Boolean(value);
super.data = value;
}
}
}
RadioButtonsInDataGrid.mxml:
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"; layout="vertical">
<mx:ViewStack id="viewStack" width="100%" height="100%">
<mx:Canvas>
<mx:Button width="100" label="go to DataGrid"
click="{viewStack.selectedIndex = 1;}" />
</mx:Canvas>
<mx:VBox width="100%" height="100%">
<mx:Button width="100" label="go back"
click="{viewStack.selectedIndex = 0;}" />
<mx:DataGrid dataProvider="{dataProvider}">
<mx:columns>
<mx:Array>
<mx:DataGridColumn
headerText="radio" dataField="selected"
itemRenderer="RadioButtonItemRenderer" />
</mx:Array>
</mx:columns>
</mx:DataGrid>
</mx:VBox>
</mx:ViewStack>
<mx:Script>
<![CDATA[
[Bindable]
private var dataProvider : Array = [{selected : true},
{selected :
false}, {selected : false}];
]]>
</mx:Script>
</mx:Application>
Any help appreciated.
R.
