In the gridview the default the cell formats should look like 0000.00
when the user tries to edit the cell
for Example : when the user wants to type 100 ,
on typing first digit (ie) 1 - cell should show it has 0000.01
on typing the next digit (ie) 0 - it should show as 0000.10
on typing the last digit (ie) 0 - it should show as 0001.00
that is , each char has to append one after the another in the above format