Read data in the Datagrid control

Hi all
I filled a Datagrid (three columns), users can drop and drag the products of this datagrid to another to remove their product. At the bottom of my first datagrid, I have a label that says how many products is classified. It is just the sum of the last column in my datagrid, but I can't seem to know how to read data from just the last column to sum up these values and update my label.

Thanks in advance,

Jordy

I raise a solution to my problem.
before, my datagrid looked this way:

now I put it to this:

I added a Dataprovider defect that is empty at the beginning.
my code works now.

Thanks for the help!

Jordy

Tags: Flex

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            {
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                newEntry = null;
                addItemAt(item, length - 1);
              }
            }
          }
        }
        
      }
    
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    Sorry for the length of this post, but I hate to see people post without including enough information to solve the problem.  If there is nothing, I have left out, made me know.

    I think that in the NewEntryArrayCollection, I would wire up to generate a

    populated point instead of where you are right now.

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