Simple Datagridview question

[DBC User]

Hi,

I have a datagridview, with column header and on the lefthandside the
rowselector. I would like to do the following 2

1. When the user click ONLY the row selector or inside the gridview
(not in header), I would like to do display a message.
2. I have a context menu associated with the datagirdview and when user
right click, I get my context menu but at the same time, I want to
select the row where the user right clicked.

I used the hittest for (1) but when I double click on the leftmost row
selector, I am getting none, same like double clicking the header. Is
there a way we can distinguish between header and row selector?

For (2) I did the following but no effect, but I do get the context
menu though.
private void dataGridView1_CellMouseClick(object sender,
DataGridViewCellMouseEventArgs e)
{
if ((e.Button == MouseButtons.Right) && (e.RowIndex >= 0))
dataGridView1.Rows[e.RowIndex].Selected = true;
}

Thanks in advance.