wpf - Copy list to Flowdocument messes up 1st listitem -

i'm writing extension allows user merge multiple notes single note , provides features adding periods onto end of original notes. i'm writing code copies parts of 1 flowdocument , inserts periods goes.

i having problems copying lists new document. reason first listitem ends in paragraph preceeding list instead of in list.

my code:

foreach (block b in tempdoc.blocks)                 {                     thisblock++;                     if (b list)                     {                         pkhcommon.wpf.helpers.addblock(b, mergeddocument);                     }                     else                     {                         paragraph p = b paragraph;                         foreach (inline inl in p.inlines)                         {                             if (!(inl linebreak))                                 pkhcommon.wpf.helpers.addinline(inl, mergeddocument);                         }                         if (thiselement != lastelement || thisblock != lastblock)                             if ((bool)cb_addperiods.ischecked)                                 pkhcommon.wpf.helpers.addinline(new run(". "), mergeddocument);                             else                                 pkhcommon.wpf.helpers.addinline(new run(" "), mergeddocument);                     }                 } 

below function merge blocks. addiline function works same way.

    public static void addblock(block from, flowdocument to)     {         if (from != null)         {             using (system.io.memorystream stream = new system.io.memorystream())             {                 textrange range = new textrange(from.contentstart, from.contentend);                 system.windows.markup.xamlwriter.save(range, stream);                 range.save(stream, dataformats.xamlpackage);                 textrange textrange2 = new textrange(to.contentend, to.contentend);                 textrange2.load(stream, dataformats.xamlpackage);             }         }     } 

i can't understand why flowdocument deciding put listitem preceeding paragraph.

adding block flowdocument's block collection should put @ end.
works me.

document.blocks.add(blocktoadd); 

you doing save/load clone block right? can try adding way @ end instead of inserting in text range?

var blocktoadd = xamlreader.load(stream) block; document.blocks.add(blocktoadd); 

part of issue after saving, stream position @ end of stream, there nothing load. there better way fix out of time help. setting position 0 feels wrong. has no parse exception.

        var = new system.windows.documents.list(new listitem(new paragraph(new run("blah"))));         using (var stream = new memorystream())         {             system.windows.markup.xamlwriter.save(from, stream);             stream.position = 0;             block b = system.windows.markup.xamlreader.load(stream) block;         }