private void butOK_Click(object sender, EventArgs e)
 {
     if (listBoxPick.SelectedItems.Count == 0)
     {
         MsgBox.Show(this, "Please select an item in the list first.");
         return;
     }
     Field.FieldValue = listBoxPick.SelectedItem.ToString();
     if (Field.FieldValue == "")           //If blank, then delete
     {
         if (IsNew)
         {
             DialogResult = DialogResult.Cancel;
             return;
         }
         ApptFields.Delete(Field.ApptFieldNum);
         DialogResult = DialogResult.OK;
         return;
     }
     if (IsNew)
     {
         ApptFields.Insert(Field);
     }
     else
     {
         ApptFields.Update(Field);
     }
     DialogResult = DialogResult.OK;
 }
        /*private void buttonDelete_Click(object sender,EventArgs e) {
         *
         * }*/

        private void butOK_Click(object sender, System.EventArgs e)
        {
            Field.FieldValue = textValue.Text;
            if (Field.FieldValue == "")          //if blank, then delete
            {
                if (IsNew)
                {
                    DialogResult = DialogResult.Cancel;
                    return;
                }
                ApptFields.Delete(Field.ApptFieldNum);
                DialogResult = DialogResult.OK;
                return;
            }
            if (IsNew)
            {
                ApptFields.Insert(Field);
            }
            else
            {
                ApptFields.Update(Field);
            }
            DialogResult = DialogResult.OK;
        }