I have a grid with columns arranged with Row and columns specified. On Grid Side when i mode a column around, what it is the best way to find out all the positions(row, column) of all the fields in the grid?

I have tried to loop through all the fields in the FieldPositionChanged event and I am not getting reliable results. Let us say my starting layout is like this.

Field, Column, Row

Field 1 - 1, 1

Field 2 - 1, 2

Field 3 - 2, 1

Field 4 - 2, 2

And then I move the "Field 3" in the grid by using the drag and drop, to between "Field 1" and "Field 2". Now, the new layout should be 

Field 1 - 1,1 

Field 3 - 1,2 

Field 2 - 1,3

Field 4 - 2,2

How to get this information after field moving?