public static void ClearAllSelections()
 {
     System.Windows.Forms.GroupBox[] tempGroupBox = cashierScreen.GetGroupBoxes();
     for (int i = 0; i < 3; i++)
     {
         foreach (RadioButton r in tempGroupBox[i].Controls.OfType <RadioButton>())
         {
             r.Checked = false;
         }
         foreach (TextBox t in tempGroupBox[i].Controls.OfType <TextBox>())
         {
             t.Text = "";
         }
         foreach (Label l in tempGroupBox[i].Controls.OfType <Label>())
         {
             string tempName = "lblSelection" + i;
             if (l.Name.Equals(tempName))
             {
                 l.Text = "";
             }
         }
     }
     cashierScreen.SetFinalText("");
 }