private void dataGridView1_SelectionChanged(object sender, EventArgs e)
{
var sel = new DataGridSelection(dataGridView1);
toolStripStatusMessage.Text = sel.ComputeSelectedStats();
}
void dataGrid1_SelectionChanged(object sender, EventArgs e)
{
var sel = new DataGridSelection(dataGrid1);
Logger.WriteLine(sel.ComputeSelectedStats(), "ui");
}