protected void OnDebitSelected(DebitSelectedEventArgs args)
        {
            DebitSelectedEventHandler handler = DebitSelected;

            if (handler != null)
            {
                handler(this, args);
            }
        }
        private void OkButton_Click(object sender, EventArgs e)
        {
            DebitSelectedEventArgs args = new DebitSelectedEventArgs()
            {
                TotalDebit    = TotalTextbox.Text.ToDecimal(),
                DebitSelected = selectedDebits.ToList()
            };

            DebitSelected(sender, args);
            this.Close();
        }