c# - Add Object to existing Xelement -

i have object obj 2 properties p1, p2. , xelement like:

<root><aa><bb>bb</bb></aa></root> 

i'd make xelement as:

<root><aa><bb>bb</bb><cc><p1>val1</p1><p2>val2</p2></cc></aa></root> 

i make new xelement obj

xelement x = new xelement("cc",new xelement("p1", obj.p1),new xelement("p2", obj.p2)); 

and insert in aa element. ther better way serializing obj , convert xelement? (because object can change in future) . help. here attempt use xmlserializer:

   xelement xelem = reqret.requestdefinition;     xelem.descendants("aa").tolist().foreach(reqitem =>     {         using (memorystream ms = new memorystream())         {             using (textwriter tw = new streamwriter(ms))             {                 xmlserializer ser = new xmlserializer(typeof(obj));                 ser.serialize(tw, objval);                 schelem = new xelement( xelement.parse(encoding.ascii.getstring(ms.toarray())));                 reqitem.add(schelem);             }         }         reqitem.add(schelem);     }); 

since you're open using xmlserializer, use xmlroot attribute; try adding following class declaration:

[xmlroot(namespace = "www.contoso.com",     elementname = "cc",     datatype = "string",     isnullable=true)] public class myobj {     ... 

see https://msdn.microsoft.com/en-us/library/system.xml.serialization.xmlrootattribute%28v=vs.110%29.aspx more information.

after that, can use code:

    xelement xelem = xelement.parse("<root><aa><bb>bb</bb></aa></root>");     myobj myobj = new myobj();      xmlserializer ser = new xmlserializer(typeof(myobj));     foreach (xelement reqitem in xelem.descendants("aa"))     {         using (memorystream ms = new memorystream())         {             ser.serialize(ms, myobj);                             reqitem.add(xelement.parse(encoding.utf8.getstring(ms.toarray())));           }     } 

this gives desired output.

if want remove xmlns declarations, can use .attributes.remove() after creating xelement.