RangeError: Index '-1' specified is out of bounds.

Question

Hi ,
Whenever i try to deselect a checkbox i get this error
RangeError: Index '-1' specified is out of bounds
                 at mx.collections::ListCollectionView/removeItemAt()
Can anyone guide me in this ?
Thanks

Answer 1

HI tuliptaurus,
I think the problem is within the function below in the first line of code:
public function removeField(field:Object):void
                var index:int = selectedFields.getItemIndex(field);
                selectedFields.removeItemAt(index);
What does your function getItemIndex(field) include...I think the problem is in this function since in this function you are trying to getItemIndex based on the field Object...If there is no exact match in the function this function is returning index = -1 so in your removeField() function you are trying to remove the item at index at -1 which in real doesn't exist so it throws the error.
So you first needs to examine the code in getItemIndex() function that it is returning the correctIndex if not then write a check in removeField() function
public function removeField(field:Object):void
                var index:int = selectedFields.getItemIndex(field);
               if(index >= 0)
                     selectedFields.removeItemAt(index);
Try posting the getItemIndex() function...
Thanks,
Bhasker Chari