Question

I have two data tables, dt1 & dt2. dt1 has data while dt2 is a new table. Now I want to copy some rows, satisfying particular condition, to dt2. I have tried following code, but I get this exception:

System.ArgumentException This row already belongs to another table.

foreach(DataRow dr in dt1.Rows)
{
   if(Convert.ToInt32(dr["col"]) == value)
   {
      dt2.Rows.Add(dr);
   }
}

How can I resolve this?

Answer 1

change dt2.Rows.Add(dr); to dt2.Rows.Add(dr.ItemArray);