Anuj,
I think there is something wrong with this structure. Why make it into for loop?
The _addToAssociatedDevicesArr is received the same value
for(var i:*=0;i<_addDevicesLen-1;i++)
{
_addToAssociatedDevicesArr=nvrsInPoolList.selectedItems;
}
The last loop has the same problem. The index variable t is never used.
Why it is in for loop?
for(var t:*=0;t<_addToAssociatedDevicesArr.length;t++)
{
if(nvrsInPoolList!=null)
{
IList(nvrsInPoolList.dataProvider).removeItemAt(nvrsInPoolList.selectedIndex);
}
}
About the problem you complain
I think one of this variable is null value:
camerasInPoolList
arrAddToPool
arrRemoveFromPool
--
Marco Catunda
On Thu, Dec 11, 2008 at 7:33 PM, anuj181 <[email protected]> wrote:
> Hi Guys
> I am trying to implement the delete entries of the list box. The code
> works fine till the last entry, when i am trying to delete the last
> item after selection it is throwing error TypeError: Error #1009:
> Cannot access a property or method of a null object reference.
> I have seen this error so many times but I am not sure how will i fix
> this in the following code. Please help me in fixing this error
> Thanks
> Anuj
>
> /*CODE*/
>
> <mx:Button x="322" y="237" label="Add" id="_addButton"
> click="addToAssociatedDevices(event)"/>
>
> private function addToAssociatedDevices(evt:MouseEvent):void
> {
> var _addDevicesLen:int=devicesInList.length;
> var _addToAssociatedDevicesArr:Array;
>
>
> for(var i:*=0;i<_addDevicesLen-1;i++)
> {
> _addToAssociatedDevicesArr=nvrsInPoolList.selectedItems;
>
>
> }
> if((_addToAssociatedDevicesArr is
> Array)&&(_addToAssociatedDevicesArr!=null))
> {
> var removeIndex:int = 0;
> for each (var addItemVal:* in _addToAssociatedDevicesArr)
> {
> if(addItemVal!=null)
> {
>
> IList(camerasInPoolList.dataProvider).addItem(addItemVal as Object);
> //Adds a device to the Add To Camera Pool list
> arrAddToPool.push(addItemVal);
> //Removes a device from the Remove From Pool list
> removeIndex = arrRemoveFromPool.indexOf(addItemVal);
> if(removeIndex > -1) {
> arrRemoveFromPool.splice(removeIndex,1);
> }
> }
> }
>
> }
> for(var t:*=0;t<_addToAssociatedDevicesArr.length;t++)
> {
> if(nvrsInPoolList!=null)
> {
>
> IList(nvrsInPoolList.dataProvider).removeItemAt(nvrsInPoolList.selectedIndex);
> }
> }
> }
>
>
