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Visual Basic class definition | 1997-08-14 | 2.2 KB | 62 lines |
- VERSION 1.0 CLASS
- BEGIN
- MultiUse = -1 'True
- END
- Attribute VB_Name = "VbBusObjCls"
- Attribute VB_GlobalNameSpace = False
- Attribute VB_Creatable = True
- Attribute VB_PredeclaredId = False
- Attribute VB_Exposed = True
- Option Explicit
-
- Private Sub Class_Initialize()
- 'class setup code here
- End Sub
-
- Public Function Test()
- 'this is here to test minimum functionality
- Test = "Functional test verified."
- End Function
-
- Public Function GetMachineName() As String
- 'this is here to show that not all methods need to be database related
- On Error GoTo ehGetMachineName
- Dim pc_name As String * 255
- Dim x As Long
- x = GetComputerName(pc_name, 255)
- GetMachineName = Trim(pc_name)
- Exit Function
- ehGetMachineName:
- GetMachineName = ""
- End Function
-
- Public Function ExecuteSQL(ByVal Connect As String, ByVal SQL As String) As Long
- 'this function executes and SQL string and returns the number of records affected
- On Error GoTo ehExecuteSQL
- Dim objADOCn As New ADODB.Connection 'ADO must be registered locally
- objADOCn.Open Connect 'open connection
- objADOCn.BeginTrans 'begin a transaction
- objADOCn.Execute SQL, ExecuteSQL 'recordsetAffected is returned
- objADOCn.CommitTrans 'no errors, commit
- Exit Function
- ehExecuteSQL:
- 'if transactions is not committed, it will be rolled back
- ExecuteSQL = -2 '-2 indicates error condition
- End Function
-
- Public Function GetRecordset(ByVal Connect As String, ByVal SQL As String) As ADOR.Recordset
- 'this function returns an ADODB recordset object
- On Error GoTo ehGetRecordset
- Dim objADORs As New ADODB.Recordset 'ADO must be registered locally
- objADORs.CursorLocation = adUseClientBatch 'this property is not visible in v1.0 typelib
- objADORs.Open SQL, Connect, adOpenUnspecified, adLockBatchOptimistic, adCmdUnspecified
- Set GetRecordset = objADORs 'set object pointer for ADOR type recordset
- Exit Function
- ehGetRecordset:
- Err.Raise Err.Number, Err.Source, Err.Description
- End Function
-
- Private Sub Class_Terminate()
- 'class cleanup code here
- End Sub
-