asp.net - How to bind one column to gridview which is not present in database -


how bind 1 column gridview not present in database?

i want display total unit in last column named total unit not present in database.

i got argument exception:

column 'tunit' not belong table.

foreach(datarow row in dt.rows ) {    object[] obj=new object[2];    obj[0] = row["transaction_id"];    obj[1] = row["tunit"];    dtgrid.rows.add(obj); }

the best solution problem implement unbound column explained in unbound columns topic.


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