Can a ComboBox be used for Text Input ?

Question

Hi
In Ms Access the combo box can be used for text input for creating new lines in the Database instead of just being limited to the lines already there in the drop down list. Is this possible with the combo box available in Flex 4. If it is I haven't being successful in getting it to work.
Thanks for you help in advance
ParaicKW

Answer 1

I am using a Dataservices Commit method to write to the Database via a button on the screen
When I type into the ComboBox's text input and click outside the combobox or on the commit button the application effectively freezes
SituationService is a CRUD type servicePHP to MYSQL and it works with the Datagrid
Here is the code -
ParaicKW
<?xml version="1.0" encoding="utf-8"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
               xmlns:s="library://ns.adobe.com/flex/spark"
               xmlns:mx="library://ns.adobe.com/flex/mx" minWidth="955" minHeight="600" xmlns:situationservice="services.situationservice.*">
    <fx:Script>
        <![CDATA[
            import mx.controls.Alert;
            import mx.events.FlexEvent;
            protected function Situation_creationCompleteHandler(event:FlexEvent):void
                getAllTblsituationResult3.token = situationService.getAllTblsituation();
            protected function dataGrid_creationCompleteHandler(event:FlexEvent):void
                getAllTblsituationResult.token = situationService.getAllTblsituation();
            protected function button1_clickHandler(event:MouseEvent):void
                situationService.commit();
            protected function vGroup_creationCompleteHandler(event:FlexEvent):void
                getAllTblsituationResult2.token = situationService.getAllTblsituation();
        ]]>
    </fx:Script>
    <fx:Declarations>
        <s:CallResponder id="updateSituationResult"/>
        <situationservice:SituationService id="situationService" fault="Alert.show(event.fault.faultString + '\n' + event.fault.faultDetail)" showBusyCursor="true"/>
        <s:CallResponder id="getAllSituationResult"/>
        <s:CallResponder id="getAllTblsituationResult"/>
        <s:CallResponder id="getAllTblsituationResult2"/>
        <s:CallResponder id="getAllTblsituationResult3"/>
        <!-- Place non-visual elements (e.g., services, value objects) here -->
    </fx:Declarations>
    <mx:DataGrid x="96" y="167" id="dataGrid" creationComplete="dataGrid_creationCompleteHandler(event)" dataProvider="{getAllTblsituationResult.lastResult}" editable="true" width="470" height="237">
        <mx:columns>
            <mx:DataGridColumn headerText="ID2" dataField="ID2"/>
            <mx:DataGridColumn headerText="SITUATION" dataField="SITUATION" width="200"/>
        </mx:columns>
    </mx:DataGrid>
    <s:Button label="Commit Updates" click="button1_clickHandler(event)"/>
    <s:HGroup width="90%" height="80%" verticalCenter="20" horizontalCenter="0">
        <mx:ComboBox width="476" id="cmbSituation" creationComplete="Situation_creationCompleteHandler(event)" dataProvider="  
                 {getAllTblsituationResult3.lastResult}" labelField="SITUATION" editable="true">
        </mx:ComboBox>
        <s:TextArea width="426" id="textArea" text="{getAllTblsituationResult3.lastResult.SITUATION}"/>
        <s:Button label="Back" click="cmbSituation.selectedIndex = cmbSituation.selectedIndex-1 ; textArea.selectedIndex = textArea.selectedIndex-1"/>
        <s:Button label="Forward" click="cmbSituation.selectedIndex = cmbSituation.selectedIndex+1 ; textArea.selectedIndex = textArea.selectedIndex-1"/>
    </s:HGroup>
</s:Application>