VB.net adding code to find the joins between SQL tables

Hi. I am using the following code to get the names of a SQL database. What code would I add to find relationships between any of the tables. Thanks

 Public Sub Populate_TreeView_From_SQL()

        Dim SQLExpression As String = _

        Dim Rootnode As TreeNode = Nothing
        Dim Mainnode As TreeNode = Nothing
        Dim Childnode As TreeNode = Nothing

        Dim MainName As String = String.Empty

        Dim oConnectionString As String = Me.RichTextBox1.Text
        Dim cn As New SqlConnection(oConnectionString)

        Dim adp As New SqlDataAdapter(SQLExpression, cn)

        Dim ds As New DataSet

        adp.Fill(ds, "SystemData")

        'Dim Con As String = "server=,1444;uid=murbro73;pwd=chestnut3;database=test"
        Rootnode = Me.TreeView_From.Nodes.Add(key:="Root", text:="database name here", _
                                        imageIndex:=0, selectedImageIndex:=0)

        For Each row As DataRow In ds.Tables("SystemData").Rows

            If MainName <> row(0).ToString Then
                Mainnode = Rootnode.Nodes.Add(key:="Table", text:=row(0).ToString, _
                imageIndex:=1, selectedImageIndex:=1)
                MainName = row(0).ToString
            End If

            Childnode = Mainnode.Nodes.Add(key:="Column", text:=row(1).ToString, _
            imageIndex:=2, selectedImageIndex:=2)


        Me.TreeView_From.Scrollable = True

        ds = Nothing
        adp = Nothing
        cn = Nothing

    End Sub
Murray BrownMicrosoft Cloud Azure/Excel Solution DeveloperAsked:
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Dirk HaestProject managerCommented:
SQL SERVER – Query to Display Foreign Key Relationships and Name of the Constraint for Each Table in Database

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Visual Basic.NET

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