DataGridView: Scrolling to Selected row

Question

(.NET 2.0 Framework)
In the DataGridView control, I have programmatically selected a row that's currently not displayed in the grid.  However, the grid does not seem to scroll to the selected row automatically, and there doesn't seem to be a way to scroll programmatically to any row, let alone the selected row.
Some details:
- my DataGridView is running under VirtualMode
- I first execute DataGridView.ClearSelection() then DataGridView.Rows[index].Selected = true
- I have traced the rows that aren't displayed and the pertinent properties are:
   DataGridViewRow.Visible = true
   DataGridViewRow.Displayed = false
I see no functions under DataGridView or DataGridViewRow to force the DataGridView to force a scroll.  Can anyone confirm this?  And is there a work around?

Answer 1

I wrote a small function that keeps the selected row in a datagridview centered. You can navigate my app with arrow keys, so this is essential. I call this after every key press. Note that if you only wanted the function to scroll when your selected row hit the bounds of your datagridview, remove the "halfWay" addition and subtraction from the if statement. Hope this helps someone. (Hurray for the first block of code I contribute)
Code Block
private void scrollGrid()
            int halfWay = (dataGridView.DisplayedRowCount(false)/2);
            if (dataGridView.FirstDisplayedScrollingRowIndex + halfWay > dataGridView.SelectedRows[0].Index ||
                (dataGridView.FirstDisplayedScrollingRowIndex + dataGridView.DisplayedRowCount(false)-halfWay) <= dataGridView.SelectedRows[0].Index)
                int targetRow = dataGridView.SelectedRows[0].Index;
                targetRow = Math.Max(targetRow-halfWay, 0);
                dataGridView.FirstDisplayedScrollingRowIndex = targetRow;