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OptionPackPL
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MTS4.CAB
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Account.VB_Step7_ReceiptUpd.cls
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1998-04-27
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93 lines
VERSION 1.0 CLASS
BEGIN
MultiUse = -1 'True
END
Attribute VB_Name = "UpdateReceipt"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = True
Attribute VB_PredeclaredId = False
Attribute VB_Exposed = True
' Filename: Account.vbp
'
' Description: UpdateReceipt Class
'
' This file is provided as part of the Microsoft Transaction Server Samples
'
' THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT
' WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED,
' INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES
' OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR
' PURPOSE.
'
' Copyright (C) 1997 Microsoft Corporation, All rights reserved
Option Explicit
Private Const ERROR_NUMBER = vbObjectError + 0
Private Const APP_ERROR = -2147467008
Private Const strConnect = "FILEDSN=MTSSamples"
Public Function Update() As Long
On Error GoTo ErrorHandler
' get result set and then update table with new receipt number
Dim adoConn As New ADODB.Connection
Dim adoRsReceipt As ADODB.Recordset
Dim lngNextReceipt As Long
Dim strSQL As String
strSQL = "Update Receipt set NextReceipt = NextReceipt + 100"
adoConn.Open strConnect
' Assume that if there is an ado error then the receipt
' table does not exist
On Error GoTo ErrorCreateTable
TryAgain:
adoConn.Execute strSQL
strSQL = "Select NextReceipt from Receipt"
Set adoRsReceipt = adoConn.Execute(strSQL)
lngNextReceipt = adoRsReceipt!NextReceipt
Set adoConn = Nothing
Set adoRsReceipt = Nothing
GetObjectContext.SetComplete ' we are finished and happy
Update = lngNextReceipt
Exit Function
ErrorCreateTable:
On Error GoTo ErrorHandler
' create the receipt table
Dim objCreateTable As CreateTable
Set objCreateTable = CreateObject("Bank.CreateTable")
objCreateTable.CreateReceipt
GoTo TryAgain
ErrorHandler:
If Not adoConn Is Nothing Then
Set adoConn = Nothing
End If
If Not adoRsReceipt Is Nothing Then
Set adoRsReceipt = Nothing
End If
GetObjectContext.SetAbort ' we are unhappy
Update = -1 ' indicate that an error occured
Err.Raise Err.Number, "Bank.UpdateReceipt.Update", Err.Description
End Function