Initial

EDOKA/DB/DB_Allgemein/clsMyKey_Tabelle.vb

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+Imports System
+Imports System.Data
+Imports System.Data.SqlTypes
+Imports System.Data.SqlClient
+Namespace edokadb
+    Public Class clsMyKey_Tabelle
+        Inherits edokadb.clsKey_tabelle
+
+        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
+
+    End Class
+End Namespace