[Visual Basic]
Public Function get_dbkey( _ 
   ByVal Tablename As String _ 
) As Long

Parameter

Tablename

Quellcode

[Visual Basic]
        Public Function get_dbkey(ByVal Tablename As String) As Long 
            Dim m_dbkey As Long 
            Dim scmCmdToExecute As SqlCommand = New SqlCommand() 
            scmCmdToExecute.CommandText = "dbo.[sp_get_dbkey]" 
            scmCmdToExecute.CommandType = CommandType.StoredProcedure 
            ' // Use base class' connection object 
            scmCmdToExecute.Connection = m_scoMainConnection 
            Try 
                scmCmdToExecute.Parameters.Add(New SqlParameter("@Tablename", SqlDbType.VarChar, 255, ParameterDirection.Input, True, 0, 0, "", DataRowVersion.Proposed, Tablename)) 
                scmCmdToExecute.Parameters.Add(New SqlParameter("@dbkey", SqlDbType.Int, 4, ParameterDirection.Output, True, 10, 0, "", DataRowVersion.Proposed, m_dbkey)) 
                scmCmdToExecute.Parameters.Add(New SqlParameter("@iErrorCode", SqlDbType.Int, 4, ParameterDirection.Output, True, 10, 0, "", DataRowVersion.Proposed, m_iErrorCode)) 
 
                If m_bMainConnectionIsCreatedLocal Then 
                    ' // Open connection. 
                    m_scoMainConnection.Open() 
                Else 
                    If m_cpMainConnectionProvider.bIsTransactionPending Then 
                        scmCmdToExecute.Transaction = m_cpMainConnectionProvider.stCurrentTransaction 
                    End If 
                End If 
 
                ' // Execute query. 
                Try 
                    scmCmdToExecute.Connection.Open() 
                Catch ex As Exception 
                Finally 
                End Try 
 
                scmCmdToExecute.ExecuteNonQuery() 
                m_dbkey = scmCmdToExecute.Parameters.Item("@dbkey").Value 
                m_iErrorCode = New SqlInt32(CType(scmCmdToExecute.Parameters.Item("@iErrorCode").Value, SqlInt32)) 
                scmCmdToExecute.Connection.Close() 
 
                If Not m_iErrorCode.Equals(New SqlInt32(LLBLError.AllOk)) Then 
                    ' // Throw error. 
                    Throw New Exception("Stored Procedure 'sp_get_dbkey' reported the ErrorCode: " & m_iErrorCode.ToString()) 
                End If 
 
                Return m_dbkey 
            Catch ex As Exception 
                ' // some error occured. Bubble it to caller and encapsulate Exception object 
                Throw New Exception("clsKey_tabelle::get_dbkey::Error occured." + ex.Message, ex) 
            Finally 
                If m_bMainConnectionIsCreatedLocal Then 
                    ' // Close connection. 
                    m_scoMainConnection.Close() 
                End If 
                scmCmdToExecute.Dispose() 
            End Try 
        End Function

Forderungen

Plattformen: Windows 98, Windows 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

Siehe auch

clsMyKey_Tabelle