private void SearchingRadButton_Click(object sender, EventArgs e)
 {
     if (!DocumentIDMaskedTextBox.MaskFull)
     {
         RadMessageBox.Show(this, "Numero de factura inválido", "JOSIAS INDUSTRIAL SRL", MessageBoxButtons.OK, RadMessageIcon.Info);
         DocumentIDMaskedTextBox.Focus();
         return;
     }
     try
     {
         var invoiceNumber = Convert.ToInt32(DocumentIDMaskedTextBox.Text);
         var result        = this._servicePaidAccountsBL.FindPaidAccountByCondition(x => x.Invoice.InvoiceNumber == invoiceNumber);
         if (result.Count > 0)
         {
             if (_currentParentForm is PaidAccountsRadForm)
             {
                 ((PaidAccountsRadForm)_currentParentForm).CurrentPaidAccountList = result;
                 this.Close();
             }
         }
         else
         {
             throw new PaidAccountsNotFoundException("Numero de factura no encontrado");
         }
         this.DisplayMsgRadLabel.Text = string.Empty;
     }
     catch (PaidAccountsNotFoundException ex)
     {
         RadMessageBox.Show(ex.Message, "JOSIAS INDUSTRIAL SRL", MessageBoxButtons.OK, RadMessageIcon.Error);
         return;
     }
 }
        private void InvoiceNumberRadForm_Load(object sender, EventArgs e)
        {
            DocumentIDMaskedTextBox.Focus();

            this.DisplayMsgRadLabel.Text = string.Empty;
        }