Check out example codes for "c# remove rows from datatable". It will help you in understanding the concepts better.

Code Example 1

for(int i = dtPerson.Rows.Count-1; i >= 0; i--)
{
    DataRow dr = dtPerson.Rows[i];
    if (dr["name"] == "Joe")
        dr.Delete();
}
dtPerson.AcceptChanges();

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