if add row to DataTable
DataTable
DataRow row = datatable1.NewRow(); row[\"column2\"]=\"column2\"; row[\"column6\"]=\"column6\"; datatable1.Rows.Add(row);
Consider a Windows Application and using Button Click Event put this code in it.
dataGridView1.Rows .Add(new object[] { textBox1.Text, textBox2.Text, textBox3.Text });