public MainWindow() { ExpressionBindingDescriptor.SetPropertyDescription(typeof(XRProgressBar), "Progress", new ExpressionBindingDescription(new[] { "BeforePrint" }, -1, new string[0], null)); InitializeComponent(); var icon = BitmapFrame.Create(AssemblyHelper.GetResourceUri(GetType().Assembly, "progress.png")); DevExpress.Xpf.Reports.UserDesigner.ReportDesigner.RegisterControl <XRProgressBar>(() => new XRProgressBarDiagramItem(false), icon); reportDesigner.OpenDocument(new XtraReport1()); }