Flex editable combobox

I am using editable combobox for my application. Combobox have default behavior like

If I enter some text which is not similar to the combobox dataprovider values, combobox by default select first dataprovider value and close the dropdown window. I want stop this default behavior.

Ex. I have combobox with the dataprovider value. (stack, stackoverflow, stackoverflow A) I open the dropdown and see the "stackoverflow A" value is in the dropdown. Now I enter value "stackoverflow B" but this value is not in the dropdown so when I enter, combobox override my entered text and replace "stackoverflow B" with first value of dataprovider(dropdown) "stack" and fire the selectedindex change event. I want to stop default behavior of combobox of selection of first value by default and look for entered value.

I have tried doing selectedindex to -1 by default but its still taking the first value by default. Any work around or suggestion would be helpful.

thanks

---

I think this will gonna be helpful to you...

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" horizontalAlign="center" 
verticalAlign="middle" height="100%" width="100%">

<mx:Script>
    <![CDATA[
        public var arr:Array = new Array({isSelected:true,label:'ABC',score:'78',name:'ABC'},
                                         {isSelected:true,label:'DEF',score:'50',name:'DEF'},
                                         {isSelected:false,label:'GHI',score:'70',name:'GHI'},
                                         {isSelected:false,label:'JKL',score:'80',name:'JKL'},
                                         {isSelected:true,label:'TRE',score:'50',name:'MNO'});

        public function dgCLG_dataChange():void
        {

        }

        public function dgCLG_change():void
        {

        }

        public function btnSubmit_click():void
        {
            dgCopy.dataProvider = dgCLG.dataProvider;
        }

    ]]>
</mx:Script>

<mx:VBox height="100%" width="100%" horizontalAlign="center" verticalAlign="middle">
    <mx:DataGrid id="dgCLG" dataProvider="{arr}" editable="true" dataChange="{dgCLG_dataChange();}" change="{dgCLG_change();}">
        <mx:columns>
            <mx:DataGridColumn headerText="" dataField="isSelected">
                <mx:itemRenderer>
                    <mx:Component>
                        <mx:Box horizontalAlign="center" verticalAlign="middle" height="100%" width="100%">
                            <mx:Script>
                                <![CDATA[
                                    override public function set data(value:Object):void
                                    {
                                        if(value != null)
                                        {
                                            super.data = value;
                                            var temp:Object = value as Object;
                                            chb.selected = temp.isSelected;
                                        }
                                    }
                                ]]>
                            </mx:Script>
                            <mx:CheckBox id="chb"/>
                        </mx:Box>
                    </mx:Component>                     
                </mx:itemRenderer>
            </mx:DataGridColumn>
            <mx:DataGridColumn headerText="Label" dataField="label" editable="false">

            </mx:DataGridColumn>
            <mx:DataGridColumn dataField="name" headerText="Person" itemEditor="ComCB" editorDataField="value" editable="true">

            </mx:DataGridColumn>
        </mx:columns>
    </mx:DataGrid>  

    <mx:Button id="btnSubmit" label="Click" click="{btnSubmit_click();}" />

    <mx:DataGrid id="dgCopy" editable="false">
        <mx:columns>
            <mx:DataGridColumn headerText="CopyLabel" dataField="label" />
            <mx:DataGridColumn headerText="CopyMarks" dataField="score" />
            <mx:DataGridColumn headerText="CopyPerson" dataField="name" />
        </mx:columns>
    </mx:DataGrid>
</mx:VBox>

</mx:Application>

Here is the ComCb Component.

<?xml version="1.0" encoding="utf-8"?>
<mx:ComboBox xmlns:mx="http://www.adobe.com/2006/mxml" dataProvider="{arr}" selectedIndex="1" creationComplete="{c_complete();}" >
<mx:Script>
    <![CDATA[
        public var arr:Array = new Array({label:'ABC'},{label:'DEF'},{label:'GHI'},{label:'JKL'},{label:'MNO'},{label:'XXX'})

        public function c_complete():void
        {
            for(var i:int = 0; i < arr.length; i++)
            {
                if(arr[i].label == parentDocument.dgCLG.selectedItem.name)
                {
                    this.selectedItem = arr[i];
                }
            }   
        }
    ]]>
</mx:Script>
</mx:ComboBox>

might be this will gonna helpful to you...

Have a NICE D@y.......

---

There is an alternative to the <s:ComboBox> which does not attempt to match text with the data provider values (as described above), and does not have this bug. It is an ActionScript, Flex, spark only combo box, and is available as open source.

链接地址: http://www.djcxy.com/p/34580.html

上一篇: 当Combobox不显示时，在Flex Combobox上设置selectedItem？

下一篇: Flex可编辑组合框