I used two combo boxes cmbhospitals and cmbusers in cmbusers when i click hospital A in 1st combbox it displays users of that hospital but again when i click on hospital B in cmbusers(Combobox2) it was displaying both users og hospital A and B I used if which clears the text but not the previous hosptal data please suggest.
I used below three to clear but getting the same old values when selecting.
//cmbhusers.SelectedItem=null;
cmbhusers.Items.Clear();
cmbhusers.ResetText();
cmbhusers.SelectedIndex=-1;