Refactor function retrieval and add handler for functions tab

Refactored GetMsSqlFunctions to accept multiple types and use SQL IN clause for function retrieval. Added rbFunctionsTb_CheckedChanged event handler to load MS-SQL functions into cmbDataviews and handle unsupported database types.

ToolCollection/frmNIVerknuepfungen.vb

@@ -796,70 +796,46 @@ Public Class frmNIVerknuepfungen
             Return Nothing
         End Try
     End Function
-    Private Function GetMsSqlFunctions(Type As String) As String()
+    Private Function GetMsSqlFunctions(ParamArray types As String()) As String()
         Try
             Dim SqlString As String
             Dim DataViews() As String = Nothing
             Dim i As Integer = 0
 
-            'Dim ConnectionString As SqlConnectionStringBuilder
             Dim Connection As SqlConnection
             Dim Command As SqlCommand
             Dim DataAdapter As SqlDataAdapter
             Dim DataSet As DataSet = New DataSet()
 
             Dim con As String
-            ' ConnectionString aufbauen
             If _selectedProfil.UserId = "WINAUTH" Then
                 con = "Data Source=" & _selectedProfil.DataSource & ";Initial Catalog=" & _selectedProfil.InitialCatalog & ";Trusted_Connection=True;"
             Else
                 con = "Server=" & _selectedProfil.DataSource & ";Database=" & _selectedProfil.InitialCatalog & ";User Id=" & _selectedProfil.UserId & ";Password=" & _selectedProfil.Password & ";"
             End If
-            'ConnectionString = New SqlConnectionStringBuilder()
-            'ConnectionString.DataSource = Me._selectedProfil.DataSource
-            'ConnectionString.UserID = Me._selectedProfil.UserId
-            'ConnectionString.Password = Me._selectedProfil.Password
-            'ConnectionString.InitialCatalog = Me._selectedProfil.InitialCatalog
 
-            ' Verbindung zur DB herstellen
             Connection = New SqlConnection(con)
             Connection.Open()
 
-            ' DB-Abfrage für alle Views definieren 
-            SqlString = $"SELECT O.name FROM sys.sql_modules M INNER JOIN sys.objects O ON M.object_id=O.object_id WHERE O.type = '{Type}'"
+            Dim typeList As String = String.Join("','", types)
+            SqlString = $"SELECT O.name FROM sys.sql_modules M INNER JOIN sys.objects O ON M.object_id=O.object_id WHERE O.type IN ('{typeList}')"
 
-            ' die DB-Abfrage erzeugen
             Command = New SqlCommand(SqlString, Connection)
-
-            ' die DB-Abfrage durchführen
             DataAdapter = New SqlDataAdapter(Command)
-
-            ' das DataSet mit den Daten füllen
             DataAdapter.Fill(DataSet)
 
-
             If DataSet.Tables(0).Rows.Count > 0 Then
-
-                Dim tabellenart As String = "FUNCTIONS"
-
-
-                ' alle Ergebnisse (VIEWs) durchlaufen
                 For Each row As DataRow In DataSet.Tables(0).Rows
-
                     If DataViews IsNot Nothing Then ReDim Preserve DataViews(DataViews.Length) Else ReDim DataViews(0)
-                    ' View in Array schreiben
                     DataViews(i) = row.Item(0)
                     i += 1
-
-
                 Next
-                ' Array zurückgeben
+
                 Return DataViews
             Else
                 Return Nothing
             End If
 
-
         Catch ex As Exception
             MsgBox("Die MSSQL-Datenansichten der Datenbank konnten nicht fehlerfrei ausgelesen werden." & vbNewLine & vbNewLine & ex.Message, MsgBoxStyle.Exclamation, "Fehler beim Auslesen der Datenansichten MSSQL")
             Return Nothing
@@ -3747,6 +3723,40 @@ Public Class frmNIVerknuepfungen
         End If
     End Sub
 
+    Private Sub rbFunctionsTb_CheckedChanged(sender As Object, e As EventArgs) Handles rbFunctionsTb.CheckedChanged
+        If Not _flagIgnoreCheckedChanged Then
+            If Me._selectedProfil Is Nothing = False Then
+                Me.cmbDataviews.Items.Clear()
+
+                ' View- oder Tabellenliste
+                Dim dataviews() As String = Nothing
+                If Me._selectedProfil.DbArt = "MS-SQL" Then
+                    dataviews = Me.GetMsSqlFunctions("TF", "IF")
+                    'ElseIf Me._selectedProfil.DbArt = "ODBC" Then
+                    '    dataviews = Me.GetOdbcDataviews(Me.rbViews.Checked)
+                    'ElseIf Me._selectedProfil.DbArt = "OLE (Access)" Then
+                    '    dataviews = Me.GetOleDataviews(Me.rbViews.Checked)
+                Else
+                    MsgBox("Der gewählte Datenbanktyp ist nicht für Funktionen unterstützt.", MsgBoxStyle.Critical, "Unbekannter Datenbanktyp")
+                End If
+
+                If dataviews IsNot Nothing Then
+
+                    For Each dataview As String In dataviews
+                        Me.cmbDataviews.Items.Add(dataview)
+                    Next
+
+                End If
+
+
+                Me.txtSelectAnweisung.Text = ""
+            Else
+                MsgBox("Bitte wählen Sie ein Profil aus!", MsgBoxStyle.Information, "Achtung:")
+            End If
+
+        End If
+    End Sub
+
     Private Sub Label1_Click(sender As Object, e As EventArgs) Handles Label1.Click
 
     End Sub