ios - how to modify a .plist file using c#? -

how change 14th line changed value, , save .plist file! trying use xmlelement , save it, problem after save file, doctype line ,i mean "[]" has been added @ end of doctype line cause issue when iphone use file.in c#, how edit in right way?

i use below code modify .plist file:

xmldocument doc = new xmldocument();         string plistpath = "app.plist";         doc.load(plistpath);      foreach (var node in doc.selectnodes("//string"))         {             if (node xmlelement)             {                 var elem = (xmlelement)node;                 if (elem.innertext == "software-package")                 {                     var versionelement = elem.nextsibling.nextsibling xmlelement;                     if (versionelement != null)                     {                         versionelement.innertext = "pcdownload url";                     }                 }             }         }         doc.save(plistpath); 

and doctype line changed to:< !doctype plist public "-//apple//dtd plist 1.0//en" "http://www.apple.com/dtds/propertylist-1.0.dtd"[]> in .plist file.

i think issue has xmldocument.save() method. know, xml , plist files different, save() method trying apply xml properties plist when saving.

here options:

1) use regular expressions. buffer file contents byte[], make changes using regular expressions, , write buffer .plist.

2) parse document using xml parser, don't use built in save() method. may still result in unwanted modifications in plist file, it's worth shot.