Serializing Lists of Classes to XML

So some times we want to convert object to xml. We can follow severel cumbersome methods. So I am using Utlity methods to convert c# object to xml and xml to c# object. Suppose we have class like below And we want serialize List<Student> to xml. So we can use this utlity function As a example we populate List<student>  with dummy data Then call out utility function then out xml variable look like as below  

The remote server returned an error: (417) Expectation failed is solved

what is Expect100Continue Property        According to  The purpose of the 100 (Continue) status  is to allow a client that is sending a request message with a request body to determine if the origin server is willing to accept the request (based on the request headers) before the client sends the request body. In some cases, it might either be inappropriate or highly inefficient for the client to send the body if the server will reject the message without looking at the body. more details about 100 continue property I got this error when try to call web method in c#. So finally I salved this error by applying following things. Adding following statement right before calling web method  System.Net.ServicePointManager.Expect100Continue = false. 2. Adding following section in web.config inside <configuration> <settings> <servicePointManager expect100Continue=”false” /> </settings> more detail on MSDN