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    <head><title>Example Merge Changes</title>
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        <h1>Example Merge Changes</h1>
        <p style="font-weight: normal;">This example shows how changes are merged from the disconnected object to the object to update. To do this, traverse the object-graph and copy all value types over. All reference-types are first checked if they're an existing object. If it is,the primitives are copied over, otherwise it's a stored as a new object.</p>
        <div class="codesnippet" MadCap:conditions="Primary.c#">
            <pre class="prettyprint" xml:space="preserve">using (IObjectContainer container = OpenDatabase())
{
    // first get the object from the database
    Car carInDb = GetCarById(container, disconnectedCar.ObjectId);

    // copy the value-objects (int, long, double, string etc)
    carInDb.Name = disconnectedCar.Name;

    // traverse into the references
    Pilot pilotInDB = carInDb.Pilot;
    Pilot disconnectedPilot = disconnectedCar.Pilot;

    // check if the object is still the same
    if (pilotInDB.ObjectId.Equals(disconnectedPilot.ObjectId))
    {
        // if it is, copy the value-objects
        pilotInDB.Name = disconnectedPilot.Name;
        pilotInDB.Points = disconnectedPilot.Points;
    }
    else
    {
        // otherwise replace the object
        carInDb.Pilot = disconnectedPilot;
    }

    // finally store the changes
    container.Store(pilotInDB);
    container.Store(carInDb);</pre>
            <div class="codesnippet-meta">MergeExample.cs: merging
			<div class="codedownload"><a href="../../CodeExamples/disconnectedobj/merging/Example-disconnectedobj-merging-csharp.zip" class="codedownload" MadCap:conditions="Primary.Online">Download Code</a></div><div class="codedownload copylink-marker" MadCap:conditions="Primary.Online"><a href="#copy">Copy Code</a></div></div>
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        <div class="codesnippet" MadCap:conditions="Primary.VB.NET">
            <pre class="prettyprint lang-vb" MadCap:conditions="Primary.Online" xml:space="preserve">Using container As IObjectContainer = OpenDatabase()
    ' first get the object from the database
    Dim carInDb As Car = GetCarById(container, disconnectedCar.ObjectId)

    ' copy the value-objects (int, long, double, string etc)
    carInDb.Name = disconnectedCar.Name

    ' traverse into the references
    Dim pilotInDB As Pilot = carInDb.Pilot
    Dim disconnectedPilot As Pilot = disconnectedCar.Pilot

    ' check if the object is still the same
    If pilotInDB.ObjectId.Equals(disconnectedPilot.ObjectId) Then
        ' if it is, copy the value-objects
        pilotInDB.Name = disconnectedPilot.Name
        pilotInDB.Points = disconnectedPilot.Points
    Else
        ' otherwise replace the object
        carInDb.Pilot = disconnectedPilot
    End If

    ' finally store the changes
    container.Store(pilotInDB)</pre>
            <div class="codesnippet-meta">MergeExample.vb: merging
			<div class="codedownload"><a href="../../CodeExamples/disconnectedobj/merging/Example-disconnectedobj-merging-vb.zip" class="codedownload" MadCap:conditions="Primary.Online">Download Code</a></div><div class="codedownload copylink-marker" MadCap:conditions="Primary.Online"><a href="#copy">Copy Code</a></div></div>
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        <p>You can use reflection to automated this process. You can also use existing libraries like <a href="http://automapper.codeplex.com/" MadCap:conditions="Primary..NET">Automapper</a> <![CDATA[ ]]> which help you to do this.</p>
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