c# - Add Adorner to Image in WPF RichTextBox when loaded -

i have richtextbox control in application developing using along toolbar create rich text editor. 1 feature have implemented ability user insert image, worth noting @ point output richtextbox rtf.

when user inserts image using following code add image document , add resizeadorner (example here richtextbox resizing adorner) image allows user resize. when user saves , loads document size of image persisted correctly.

private void btninsertimage_onclick(object sender, routedeventargs e) {     openfiledialog ofd = new openfiledialog();     ofd.multiselect = false;     ofd.checkfileexists = true;     ofd.checkpathexists = true;     ofd.filter = "image files (*.png;*.jpg;*.jpeg;*.gif;*.bmp)|*.png;*.jpg;*.jpeg;*.gif;*.bmp";     ofd.initialdirectory = environment.getfolderpath(environment.specialfolder.mypictures);     ofd.title = "insert image";     if (ofd.showdialog() == true)     {         bitmapimage bitmap = new bitmapimage(new uri(ofd.filename, urikind.relativeorabsolute))                                  {                                      cacheoption = bitmapcacheoption.onload                                  };         image image = new image();         image.isenabled = true;         image.source = bitmap;         image.width = bitmap.width;         image.height = bitmap.height;         image.loaded += this.imageonloaded;         image.stretch = stretch.uniform;          inlineuicontainer container = new inlineuicontainer(image, this.rtbeditor.selection.start);         paragraph paragraph = new paragraph(container);          var doc = this.rtbeditor.document;         doc.blocks.add(paragraph);     } }  private void imageonloaded(object sender, routedeventargs routedeventargs) {     var img = sender image;     if (img != null)     {         var al = adornerlayer.getadornerlayer(img);         if (al != null)         {             al.add(new resizingadorner(img));         }     } } 

the problem , question when document loaded unable figure out how add resizingadorner images in document. using attached property load document contents, code below part loads document:

var stream = new memorystream(encoding.utf8.getbytes(getdocumentxaml(richtextbox))); var doc = new flowdocument(); var range = new textrange(doc.contentstart, doc.contentend);  range.load(stream, dataformats.xaml);  richtextbox.document = doc; 

could how can add resizingadorner images in loaded document please?

so have worked out way can add adorner image in document through selectionchanged event handler , following code

var inline = this.rtbeditor.caretposition.getadjacentelement(logicaldirection.forward) inline; if (inline != null) {     this.addadorner(inline.nextinline inlineuicontainer);     this.addadorner(inline.previousinline inlineuicontainer); } 

and addadorner method

private void addadorner(inlineuicontainer container) {     if (container != null)     {         var image = container.child;         if (image != null)         {             var al = adornerlayer.getadornerlayer(image);             if (al != null)             {                 var currentadorners = al.getadorners(image);                 if (currentadorners != null)                 {                     foreach (var adorner in currentadorners)                     {                         al.remove(adorner);                     }                 }                  al.add(new resizingadorner(image));             }         }     } } 

i know not elegant way achieve me works wanted post others can choose use if appropriate