Imports iAnywhere.Data.UltraLite

Public Class MainWindow
    Inherits System.Windows.Forms.Form
    Implements ULServerSyncListener

	Private conn As ULConnection

    Public Sub New(ByVal args() As String)
        MyBase.New()

        'This call is required by the Windows Form Designer.
        InitializeComponent()

        'Add any initialization after the InitializeComponent() call
        ULConnection.DatabaseManager.SetServerSyncListener( _
            "myCompany.mymsg", "myCompany.myapp", Me _
        )
        'Create Connection
        ...
    End Sub

    Protected Overrides Sub OnClosing( _
        ByVal e As System.ComponentModel.CancelEventArgs _
    )
        ULConnection.DatabaseManager.SetServerSyncListener( _
            Nothing, Nothing, Nothing _
        )
        MyBase.OnClosing(e)
    End Sub

    Public Sub ServerSyncInvoked(ByVal messageName As String) _
        Implements ULServerSyncListener.ServerSyncInvoked

        Me.Invoke(New EventHandler(AddressOf Me.ServerSyncAction))
    End Sub

    Public Sub ServerSyncAction( _
        ByVal sender As Object, ByVal e As EventArgs _
    )
        ' Do Server sync
        conn.Synchronize()
    End Sub
End Class

using iAnywhere.Data.UltraLite;
public class Form1 : System.Windows.Forms.Form, ULServerSyncListener
{
    private System.Windows.Forms.MainMenu mainMenu1;
    private ULConnection conn;

    public Form1()
    {
        //
        // Required for Windows Form Designer support
        //
        InitializeComponent();

        //
        // TODO: Add any constructor code after
        // InitializeComponent call
        //
        ULConnection.DatabaseManager.SetServerSyncListener(
            "myCompany.mymsg", "myCompany.myapp", this
        );

	    // Create connection
        ...
    }

    protected override void Dispose( bool disposing )
    {
        base.Dispose( disposing );
    }

    protected override void OnClosing(
        System.ComponentModel.CancelEventArgs e)
    {
        ULConnection.DatabaseManager.SetServerSyncListener(
            null, null, null
        );
        base.OnClosing(e);
    }

    public void ServerSyncInvoked( string messageName )
    {
        this.Invoke( new EventHandler( ServerSyncHandler ) );
    }

    internal void ServerSyncHandler(object sender, EventArgs e)
    {
        conn.Synchronize();
    }
}