c# - How do I set Encoding on AlternateView -

i'm creating mailbody via

using (var streamwriter = new streamwriter(foofilename, false, encoding.utf8)) {     streamwriter.write(foomessage); } 

now i'm consuming file with

var mailmessage = new system.net.mail.mailmessage {     = foosender,     =     {         foorecipient     },     subject = foosubject,     subjectencoding = encoding.utf8,     bodyencoding = encoding.utf8 }; // foomediatype can // - system.net.mime.mediatypenames.text.html // - system.net.mime.mediatypenames.text.plain var alternateview = new system.net.mail.alternateview(foofilename, foomediatype); mailmessage.alternateviews.add(alternateview); 

if i'm using non-umlauts, works fine, i'm using umlauts in alternateview, broken.

so how can set sort of encoding on alternateview working?

 var alternateview = new alternateview(foofilename, foomediatype)  {       contenttype =       {            charset = encoding.utf8.webname       }  };