อยากถามเรื่องขั้นตอนการ Connect PostgresSQL ด้วย VB.Net 2008

Public Class Form1
    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        ' Dim oOleDbConnection As OleDbConnection
        Dim con As String = "Provider=PostgreSQL.1;Data Source=127.0.0.1;location=post;User ID=postgres;password=admin;"
        'Dim con As String = "Server=127.0.0.1;Port=5432;Database=post;Integrated Security=true;"
        Dim MyConnection As New OleDbConnection(con)
        Try

            MyConnection.Open()
            MsgBox("ok")
        Catch ex As Exception
            MsgBox("No")
        End Try
    End Sub
End Class