C# DataGridView 与 DataSet 显示问题

Question

I have the following code:

private void Timer1Tick(object sender, EventArgs e)
{
  timer_ScanTimer.Enabled = false;

  var psc = new ParseScannedCheckNumbers();
  if (psc.ParseCheck(_checkData))
  {
    label_Status.Text = @"Scan Next Check";

    var ct = checkTrans.IndividualCheck.NewIndividualCheckRow();
    ct.Date = DateTime.Now.ToShortDateString();
    var bracct = GetBranchAccountNumber(psc.BankAccountNumber);
    if (bracct.Trim().Length == 7)
    {
      ct.Branch = bracct.Substring(0, 2);
      ct.AccountNumber = bracct.Substring(2, 5);
      ct.NameOnCheck = GetAccountName(ct.Branch + ct.AccountNumber);
      ct.AccountBalance = GetAccountBalance(ct.Branch + ct.AccountNumber);
    }
    else
    {
      ct.Branch = Configuration.Branch;
      ct.AccountNumber = string.Empty;
      ct.NameOnCheck = string.Empty;
      ct.AccountBalance = 0;
    }

    ct.CheckAmount = 0;
    ct.BankRoutingNumber = psc.BankRoutingNumber;
    ct.BankAccountNumber = psc.BankAccountNumber;
    ct.CheckNumber = psc.CheckNumber;
    ct.Status = "Entered";
    checkTrans.IndividualCheck.Rows.Add(ct);
  }
  else
  {
    label_Status.Text = Resources.ScanCheck_ScanFailed;
  }
  _checkData = string.Empty;

  var rs = new RegistrySettings();
  if (!rs.ScanChecksContinuous)
  {
    StopScanning();
    label_Status.Text = Resources.ScanCheck_Success;
    EditLastRowEntered();
  }

  label_ChecksScanned.Text = (dgv_Checks.RowCount - 1).ToString();
}

When the timer goes off, I verified that I have received all of the data, then I add it to the dataset. It's being added to the dataset without issue, it's just being seen on the datagridview every time. Sometimes it works, most time it doesn't.

How do I get the datagridview to update when changes are done to the dataset? Am I doing something wrong in the above code?

Thanks! (again)

Answer 1

If you created the dataset and attached it to the DataGridView using the Visual Studio Data Source Configuration Wizard, then you probably have a call to

this.somethingTableAdapter.Fill(this.yourDataSet.someDataTable);

somewhere in your code. This is what actually loads the data from the DataSet into your DataGridView . While calling this method again might not be the 'proper' way to refresh your DGV, it did the job for me.