Original vs existing DataGrid value

I have a datagrid with in some columns I have itemeditors with areas drop-down list and datefields and others that I have just an editable datafield.  But since fields bound to an instance of a value object when someone changes the value, it is changed in the Forum as well.  Is there a property that keeps track of the original value before changing the value?  Is there a property changed to tell me if a value has changed.  Or I have to create a kind of update function to store values in variables?  What is the thinking of flex?

My bad.

because my tmpObject is not an object of value, I forgot to instantiate the object, and this is why it did not work.  If the solution above to solve my problem.  Although not as clean as I wish but clean enough.

Tags: Flex

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