/// <summary>
 /// Loads teh rejection file
 /// </summary>
 /// <param name="sender"></param>
 /// <param name="e"></param>
 private void btnTryLoadRejectionFile_Click(object sender, EventArgs e)
 {
     if (!string.IsNullOrWhiteSpace(txtRejectionFile.Text))
     {
         txtRejectionFileLoadResults.Text = "";
         CsvParser<FlatRejectionRecord> csvParser = new CsvParser<FlatRejectionRecord>();
         csvParser.ValidationErrorOccurred += new CsvParser<FlatRejectionRecord>.ValidationErrorOccuredHandler(csvParser_RejectionErrorOccurred);
         try
         {
             txtRejectionFileLoadResults.Text += "Start reading file...\r\n";
             _flatRejectionFile = new FlatRejectionFile(csvParser.ReadFromFile(txtRejectionFile.Text, ";", chkHasHeaders.Checked));
             txtRejectionFileLoadResults.Text += "\r\nEnd reading file.";
             txtRejectionFileLoadResults.Text += string.Format("Total {0} of {1} lines imported.", csvParser.ImportedLineCount, csvParser.TotalLineCount);
             if (_flatRejectionFile.GetInvoiceCount() > 0 || _flatCargoFile.GetInvoiceCount() > 0)
                 this.btnNext.Enabled = true;
             else
                 this.btnNext.Enabled = false;
         }
         catch (IOException ex)
         {
             txtRejectionFileLoadResults.AppendText(ex.Message + "\r\n");
         }
         catch (Exception ex)
         {
             txtRejectionFileLoadResults.AppendText(ex.Message + "\r\n");
         }
     }
 }