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hi friends,

How to calculate two values and display in third column.but i found and it 

calculating and display in third column but its taking it corresponding ID not its value

My requiredment is to calculate its value and display in thired column... the first two column values are foreign key reference

rilkTax.DisplayMember = "Name" rilkTax.ValueMember = "ID"

when I rename the above that is rilkTax.valueMember="Percentage" means its calculating correctely but while inserting its showing error. plz help me friends.

plz help me friends....