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Visual Basic
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 Copy Code
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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
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