Export changes from Subversion with SharpSvn

private static void ExportRevisionRange(
    Uri repositoryUrl, 
    long fromRevision, 
    long toRevision, 
    string exportFolder)
{
    var client = new SvnClient();
    var from =
        new SvnUriTarget(repositoryUrl, fromRevision);
    var to =
        new SvnUriTarget(repositoryUrl, toRevision);
    Collection<SvnDiffSummaryEventArgs> list;
    client.GetDiffSummary(from, to, out list);

    foreach (SvnDiffSummaryEventArgs item in list)
    {
        if (item.DiffKind == SvnDiffKind.Deleted ||
            item.NodeKind != SvnNodeKind.File)
            continue;
        var target = new SvnUriTarget(item.ToUri);
        string exportPath =
            Path.Combine(
            exportFolder,
            item.Path.Replace("/", "\\"));
        var fi = new FileInfo(exportPath);
        if (!fi.Directory.Exists)
            fi.Directory.Create();
        client.Export(
            target,
            exportPath,
            new SvnExportArgs { Revision = toRevision });
    }}