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Can I use JRO with .Net?

Posted on 2005-03-23
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Last Modified: 2012-08-13
I have a replicated Access Database that I will need to be able to synchronize.  I know that Access using JRO to manage the synchronization.  Am I able to use JRO with .NET.  If not, can anyone point me in the right direction to find some material to explain how to handle the synchronization.

On a side note, what I am doing is rebuilding the frontend of the application to get it out of Access.  I don't necessarily have to use Access as a backend.  What I do have to do is make the data accessable on and off the network.  Most of the time it will be used in the office; however, the application will need to be able to run on several laptops at remote locations where they will not have access to the internet.  I will need to insure the data's integrity and have some way to synchronize the information when the laptops are back on the network.

Currently, I was looking for a solution that would keep the same backend.  If someone knows how to accomplish this using a different backend and can help me personally or point me to the information I will need to come up with a working solution I will also accept that.

Thank you,
Kevin McBrearty
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Question by:kmcbrearty
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Expert Comment

by:Mohammed Nasman
ID: 13621182
This article uses JRO to compact and repair Access, it may help you to accomplish what you are looking for
http://www.thecodeproject.com/cs/database/mdbcompact_latebind.asp
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Author Comment

by:kmcbrearty
ID: 13746033
Sorry,

mnasman that really isn't helping me.

Kevin
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Author Comment

by:kmcbrearty
ID: 13952885
mnasman,

I have created code using VB.NET.  The following is the VB.NET code that was used and works.  

-----------------------------------------------------------------------------------------------------------------------------------------------
Imports System
Imports System.Windows.Forms
Imports JRO
Imports JRO.SyncTypeEnum
Imports JRO.SyncModeEnum


Module JROSync

    Function Synchronize(ByVal DB1 As String, ByVal DB2 As String)

        Call TwoWayDirectSync(DB1, DB2)

    End Function

    Sub TwoWayDirectSync(ByVal strReplica1 As String, _
    ByVal strReplica2 As String)
        Dim repReplica As New JRO.Replica
        Dim DBConnection As ADODB.Connection
        Dim strDBConnection As String

        Try
            ' Open connection
            strDBConnection = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & strReplica1 & ";"
            DBConnection = New ADODB.Connection
            DBConnection.Open(strDBConnection)

            repReplica.ActiveConnection = DBConnection

            ' Sends changes made in each replica to the other.
            repReplica.Synchronize(strReplica2, jrSyncTypeImpExp, jrSyncModeDirect)

            repReplica = Nothing
            MessageBox.Show("Synchronization Complete", "Synchronize Database", MessageBoxButtons.OK, MessageBoxIcon.Information)
        Catch ex As Exception
            MessageBox.Show(ex.Message, "An Error has Occured", MessageBoxButtons.OK, MessageBoxIcon.Error)
        Finally
            DBConnection.Close()
            DBConnection = Nothing
        End Try

    End Sub

End Module
-----------------------------------------------------------------------------------------------------------------------------------------------

You have to add a reference to your project to the Microsoft Jet and Replication objects 2.6 library for it work.  If you want to rewrite this code for C# I will go ahead and award you the points.  Otherwise, I recommend that the points be refunded as the above link did not answer the question, it only works for compacting a database which is not what I wanted to accomplish.  I apologize for just now getting back to this but my wife was having some health problems and I haven't had much time to work on it.
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