xmlns:docView="clr-namespace:PDFTron.SilverDox.Samples;assembly=ReaderControl"
loaded the control in xaml
<docView:ReaderControl x:Name="myReaderControl"
Background="DarkGray"
Grid.Row="1"
EnableOpenLocalFileControl="False"
EnableThumbnailListControl="True"
EnableFullTextSearchControl="False"
EnableOutlineTreeControl="False"
EnablePageNavigationControl="True"
EnableFitModeControl="True"
ShowToolbar="True"
ShowSideWindow="False"
EnableToolModeControl="False"
EnableRotateControl="True"
EnableFullScreenControl="False"
EnableAnnotationWindowControl="False"
EnableLayoutControl="False"
EnableSearchControl="False"/>
I load the document with a byte array from a database:
Uri documentUri = new Uri(address + "?id=" + _documentRefID);
var myHttpPartRetriever = new HttpStreamingPartRetriever(documentUri);
myReaderControl.DocumentViewer.LoadAsync(myHttpPartRetriever, OnLoadAsyncCallback);