0
dataGridView1.Rows[dataGridView1.Rows.Count - 1].Selected = true;
or
dataGridView1.Rows[Rowindex].Selected = true;
0
Consider IntIndex is the Index of newle inserted row in the GridView
TextBox m=MyGridView.Rows[IntIndex].FindControl("MyTextbox") as TextBox;
if(m!=null)
{
m.Focus();
}
Hope it helped.
Check answer as correct if it helped