//Only allows user to select from one datagridview at a time
 private void PatientsClassWaitingDGV_SelectionChanged(object sender, EventArgs e)
 {
     PatientsClassDGV.ClearSelection();
 }
 //The following 2 event methods clears the autoselection which occurs when a datasource is set to a DGV
 private void PatientsClassDGV_DataBindingComplete(object sender, DataGridViewBindingCompleteEventArgs e)
 {
     PatientsClassDGV.ClearSelection();
 }