problem selecting cell after datagridviewcell Drop Down

Question

Hello.. 

I want to drag n drop Single cell.. such that i can copy the value form one cell to another.. i used following code .. everything works fine but  problem is that  after dropping cell the new cell where i am dropping value doesn't  highlight. and highlight remain on the first cell where i start dragging... 

Here is the code..   i try to set current cell .. but still didn't work.

 

private void dataGridView1_MouseDown(object sender, MouseEventArgs e)
{
         if (e.Button == MouseButtons.Left)
         {
                   DataGridView.HitTestInfo info = dataGridView1.HitTest(e.X, e.Y);

                     if (info.RowIndex >= 0 && info.ColumnIndex >= 0)
                     {
                               string  text = Convert.ToString(dataGridView1.Rows[info.RowIndex].Cells[info.ColumnIndex].Value);
                               if (text != null)
                               {
                                         dataGridView1.DoDragDrop(text, DragDropEffects.Copy);
                               }
                     }
         }

}
private void dataGridView1_DragEnter(object sender, DragEventArgs e)
{
         e.Effect = DragDropEffects.Copy;
}
private void dataGridView1_DragDrop(object sender, DragEventArgs e)
{
         if (e.Data.GetDataPresent(typeof(System.String )))
         {
             DataGridView dgv = (DataGridView)sender;
             Point p = dgv.PointToClient(new Point(e.X, e.Y));
             DataGridView.HitTestInfo info= dgv.HitTest(p.X, p.Y);
             if (info.RowIndex >= 0 && info.ColumnIndex >= 0)
             {

                       dataGridView1[info.ColumnIndex,info.RowIndex].Value = e.Data.GetData(typeof(System.String));
                       dgv.CurrentCell = dataGridView1[info.ColumnIndex, info.RowIndex];
                       dgv.CurrentCell.Selected = true;

             }
         }
}