Selection issue in DataGridView

Hi,

I’m trying to move a row down in a DataGridView and keep it selected.
The  code I have works for moving a row up, but when I move it down, the row highlight appears in the correct place, but the triangle marker is still on the previous row and tracing through the code it looks like it still thinks the previous row is selected.

The code is as follows:

int index = dgvIPAddresses.CurrentCell.OwningRow.Index;
DataGridViewRowCollection rows = dgvIPAddresses.Rows;
// remove the next row and add it in front of the selected row.
DataGridViewRow nextRow = rows[index + 1];
rows.Remove(nextRow);
nextRow.Frozen = false;
rows.Insert(index, nextRow);
dgvIPAddresses.ClearSelection();
dgvIPAddresses.Rows[index + 1].Selected = true;
dgvIPAddresses.Refresh();

Any ideas ?
Thanks in advance,

Andi