FIX. RadGridView - the RowValidating event is fired when multiple rows are deleted.
To reproduce:
Open the attached project, select two rows and delete them.
Workaround:
private void RadGridView1_RowValidating(object sender, Telerik.WinControls.UI.RowValidatingEventArgs e)
{
if (e.RowIndex != -1)
{
}
}