How to set Authetication values in dynamically called WSDL to call its methods

hi all

i need attention on asap,my issue goes below

i consuming webservice dynamically in code , not adding referrence

so have downloaded wsdl using webclient @ end , created proxy classes

and compiled using codedom,and extracted infos regarding methods following

//service dynamically created instance of web service
 service = assembly.gettype("service1");
 methodinfo = service.getmethods();

than have created instance of service using following , calling method using invoke method

 var obj = activator.createinstance(service);
 var response = t.invoke(obj, paramsarray);

now question works how set autheticationvalues required in method or soapheader
how pass creadentials web service method requires authenication parameters soapheader

now 1 interesting fact if go in quick watch window , if create new authetication() allows me , if set value of 2 properties called username , password , than

if , invoke mathod,it works , return result,but otherwise gives me error,now wanted ask is

how can achive compile time,how set authetication values method can

get executed,and returns result

thxs

note: have used webclient, soaphttpclientprotocol classes pass credentials  not useful

if have service instance in "obj", , if know properties "username" , "password", can set them follows:

var type = obj.gettype();  var usernameproperty = type.getproperty("usrname");  usernameproperty.setvalue(obj, "joe user", new object[]{});  var passwordproperty = type.getproperty("password");  passwordproperty.setvalue(obj, "joe user's password", new object[]{});  

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john saunders
wcf is web services. not 2 separate things.
use wcf new web service development, instead of legacy asmx or obsolete wse
use file->new project create web service projects

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