private void AssignBatchID(String pBatchID)
{
    // attach the batch number to only the selected invoice records
    for (int i = 0; i < invselection.SelectedCount; i++)
    {
        InvoicesCurrentBO mCurrInvoice = (InvoicesCurrentBO)invselection.GetSelectedRow(i);
        InvoiceMasterBO mInvMasterBO = new InvoiceMasterBO();
        mInvMasterBO.FillByPrimaryKey(mCurrInvoice.invoiceindex);
        if (mInvMasterBO.Count > 0)
        {
            mInvMasterBO.Edit();
            mInvMasterBO.batchid = pBatchID;
            mInvMasterBO.Save();
        }
    }
}

I am thinking that the Save() method needs to reflect transactions, like this: mInvMasterBO.Save(true).

If I replace that method parameter whereever a save occurs inside that transaction, will that fix the error?

Bill

private void UpdateAspireForTransfer()
{
    try
    {
        BusinessLayer.TransactionBegin("Aspire", IsolationLevel.ReadCommitted);
        // Retrieve the next Batch ID
        String mBatchID = GetNextBatchID();
        AssignBatchID(mBatchID);
        CreateCommissions(mBatchID);
        BusinessLayer.TransactionCommit("Aspire");
        UpdateDynamicsForTransfer(mBatchID);
    }
    catch
    {
        BusinessLayer.TransactionRollback("Aspire");
        throw;
    }
}

For some reason, yet unknown to me, the TransactionRollBack gets called and generates an error:

A transaction with the key [DEF_TRANS_KEY] has not been started.

and this stack trace:

at MicroFour.StrataFrame.Data.DbDataSourceItem.TransactionEnd(String TransactionKey, Boolean IsCommit)
at MicroFour.StrataFrame.Data.DbDataSourceItem.TransactionRollback(String TransactionKey)
at MicroFour.StrataFrame.Business.BusinessLayer.TransactionRollback(String DataSourceKey)
at Aspire.Accounting.Invoicing.UpdateAspireForTransfer()
at Aspire.Accounting.Invoicing.TransferTSB_Click(Object sender, EventArgs e)
at System.Windows.Forms.ToolStripItem.RaiseEvent(Object key, EventArgs e)
at System.Windows.Forms.ToolStripButton.OnClick(EventArgs e)
at System.Windows.Forms.ToolStripItem.HandleClick(EventArgs e)
at System.Windows.Forms.ToolStripItem.HandleMouseUp(MouseEventArgs e)
at System.Windows.Forms.ToolStripItem.FireEventInteractive(EventArgs e, ToolStripItemEventType met)
at System.Windows.Forms.ToolStripItem.FireEvent(EventArgs e, ToolStripItemEventType met)
at System.Windows.Forms.ToolStrip.OnMouseUp(MouseEventArgs mea)
at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.ScrollableControl.WndProc(Message& m)
at System.Windows.Forms.ToolStrip.WndProc(Message& m)
at System.Windows.Forms.Control.ControlNativewindow.OnMessage(Message& m)
at System.Windows.Forms.Control.ControlNativewindow.WndProc(Message& m)
at System.Windows.Forms.Nativewindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

So, what am I doing wrong?

Thanks, for straightening me out,
Bill