Flex popup issue with keyboard key like C,V,X,A key - actionscript-3

Question

As i report earlier in the issues of pop-up of that i'm not able to write "a,c, v and x" characters in the text-input field in pop-up.
Shortcut actions(a = select all, c= copy, v = paste and x = cut) are performed on those keys on keys text-input fields.
Complete case:
In the popup there is a data-grid and in the data-grid an item renderer where i enter the input.
Here is code
<CheckBoxGrid:CheckBoxDataGrid id="id_DataGrid"
width="95%" height="90%" allowMultipleSelection="true" editable="true"
dataProvider="{inHouseLabList}"
draggableColumns="false"
useRollOver="false"
styleName="gridStyle"
rowCount="{id_DataGrid.dataProvider.length + 1}"
variableRowHeight="true" columnWidths="{[20,'10%','25%', '25%','30%']}">
<CheckBoxGrid:columns>
<mx:DataGridColumn dataField=""
headerText=""
rendererIsEditor="true"
sortable="false"
itemRenderer="com.zigron.controls.extended.components.CheckBoxGrid.CheckBoxRenderer"
headerRenderer="com.zigron.controls.extended.components.CheckBoxGrid.CheckBoxHeaderRenderer"
editorDataField="selected"
/>
<mx:DataGridColumn headerText="Test Code" dataField="InHouseLabTestTypeDTO.TestCode" editable="false" sortable="false"/>
<mx:DataGridColumn headerText="Test Name" dataField="InHouseLabTestTypeDTO.TestName" editable="false" />
<mx:DataGridColumn headerText="Result" dataField="TestResult" editable="true" />
<mx:DataGridColumn headerText="Normal Range" dataField="InHouseLabTestTypeDTO.TestRange" editable="false" />
</CheckBoxGrid:columns>
</CheckBoxGrid:CheckBoxDataGrid>

Answer 1

It works without issues in FF11, DataGrid in a popup with a TextInput in an itemRenderer, A,C,V,X or CTRL+A,C,V,X works:
Application.mxml:
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
minWidth="955" minHeight="600" layout="vertical">
<mx:Script>
<![CDATA[
import mx.managers.PopUpManager;
protected function clickHandler(event:MouseEvent):void
{
var popup:MyPopup = new MyPopup();
PopUpManager.addPopUp(popup, this)
}
]]>
</mx:Script>
<mx:Button label="click me!" click="clickHandler(event)" />
</mx:Application>
MyPopup.mxml:
<?xml version="1.0" encoding="utf-8"?>
<mx:Panel xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" width="400" height="300">
<mx:Script>
<![CDATA[
import mx.collections.ArrayCollection;
[Bindable]
private var ac:ArrayCollection = new ArrayCollection([{}]);
]]>
</mx:Script>
<mx:DataGrid width="100%" height="100%" dataProvider="{ac}">
<mx:columns>
<mx:DataGridColumn headerText="MyTextInput">
<mx:itemRenderer>
<mx:Component>
<mx:TextInput />
</mx:Component>
</mx:itemRenderer>
</mx:DataGridColumn>
</mx:columns>
</mx:DataGrid>
</mx:Panel>
Please try it and report.
Hope that helps