Hi Rohit,
In this scenario, what I would do is probably add one more property (say
selIndex) to each object in the ArrayCollection that will contain the number
that needs to be set as the selectedIndex. And inside the itemRenderer, bind
the combo box's selectedIndex property to {data.selIndex}. And in the
command class, I will change the value of selIndex of the required row (i.e
the reqd item of the arrayCollection) and binding should take care of the
rest. At the max, you will have to do arrayCollection.refresh() to update
the values on the screen.
Regards,
Venkat
www.venkatv.com
On Tue, Nov 18, 2008 at 2:27 PM, Vinod M. Jacob <[EMAIL PROTECTED]> wrote:
> Sorry ....what i meant was do you want to change the selectedindex of the
> combobox of the selected row in the datagrid ?
>
>
> On Tue, Nov 18, 2008 at 2:25 PM, Vinod M. Jacob <[EMAIL PROTECTED]>wrote:
>
>> Do you want to change the selected item for all the combobox in the
>> datagrid or only one particular row combobox ?
>>
>>
>> On Tue, Nov 18, 2008 at 10:33 AM, rohit <[EMAIL PROTECTED]> wrote:
>>
>>>
>>> actually i need to change the selected index of that combobox from the
>>> command (cairngorm)........i have instance of the page
>>>
>>> On Nov 17, 8:57 pm, "Venkat Viswanathan" <[EMAIL PROTECTED]>
>>> wrote:
>>> > Hi Rohit,
>>> >
>>> > There are two reasons why you should not access the combo box with a
>>> > reference like that:
>>> >
>>> > 1. When you place an element inside the itemRenderer, you will not know
>>> how
>>> > many instances will be created. It would depend on the number of rows
>>> in the
>>> > data provider. So it could be anything from 0 to infinity. So how will
>>> you
>>> > decide on the row from which the combo box needs to be accessed.
>>> >
>>> > 2. Even if you know the number of rows that will be there in the
>>> datagrid,
>>> > if you access the combobox from outside, you are defeating the concept
>>> of
>>> > itemRenderer. Basically an itemRenderer renders only those elements
>>> that are
>>> > required. If you try to access something that is present in the screen
>>> but
>>> > not visible, then you may get a null data exception.
>>> >
>>> > In short, you should not access the elements of your itemRenderer from
>>> > outside. There are crooked ways of doing this, but I wont recommend
>>> those
>>> > ways. Can you tell us why u want the combo box's reference? If you
>>> could
>>> > explain the complete functionality required, we may be able to help you
>>> with
>>> > a better approach.
>>> >
>>> > Regards,
>>> > Venkatwww.venkatv.com <http://venkatwww.venkatv.com/>
>>> >
>>> >
>>> >
>>> > On Mon, Nov 17, 2008 at 7:38 PM, rohit <[EMAIL PROTECTED]> wrote:
>>> >
>>> > > I have a data grid and i add a combo box in that((using item rendrer)
>>> >
>>> > > <mx:DataGridColumn headerText="Mapped Account" width="200">
>>> > > <mx:itemRenderer>
>>> > > <mx:Component>
>>> > > <mx:HBox width="100%" paddingLeft="5" height="30"
>>> > > verticalAlign="middle">
>>> > > <mx:ComboBox id ="cmb1"/>
>>> > > </mx:Component>
>>> > > </mx:itemRenderer>
>>> > > </mx:DataGridColumn>
>>> >
>>> > > then ,how can i access that combo box outside the page by the id
>>> "cmb1"- Hide quoted text -
>>> >
>>> > - Show quoted text -
>>> >>>
>>>
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