Programmatically Get Version Changes for List Item in SharePoint 2013

Question

Is it possible to get only the changes (changed field values) from every version of a List Item in SP 2013? If so, can anyone please explain it in detail with code?

Answer 1

There's no direct way provided by the server side API to get version changes. But you can compare the fields of different versions:

using (SPSite site = new SPSite("http://my.domain.com/"))
using (SPWeb web = site.OpenWeb())
{
    SPList list = web.GetList("http://my.domain.com/Lists/Stuff");
    SPListItem item = list.Items[1];

    Console.Out.WriteLine(item.Title);

    SPListItemVersion currentVersion = item.Versions[0];
    SPListItemVersion previousVersion = item.Versions.Count > 1 ? item.Versions[1] : null;

    Console.Out.WriteLine("Version is current: {0}", currentVersion.IsCurrentVersion);

    foreach (SPField field in currentVersion.Fields)
    {
        if (field.ShowInVersionHistory == false)
        {
            continue;
        }

        if (previousVersion == null)
        {
            Console.Out.WriteLine("  > {0} changed to \"{1}\"",
                field.StaticName, currentVersion[field.StaticName]);
            continue;
        }

        if (currentVersion[field.StaticName].Equals(previousVersion[field.StaticName]))
        {
            continue;
        }

        Console.Out.WriteLine("  > {0} changed from \"{1}\" to \"{2}\"",
            field.StaticName, previousVersion[field.StaticName], currentVersion[field.StaticName]);
    }
}

Source