Sending Custom Objects to an asp.net webservice

Question

So I want to send a custom object to an asp.net 4.0 Webservice.
I have been sending a bunch of individual parameters but i want to start reusing some code so I'd like to do something like

    [WebMethod(Description = "Testing Sending Object In")]
    [ScriptMethod(ResponseFormat = ResponseFormat.Json)]
    public bool COT(CodeWithMessage CWM)
    {
...

where the class for CodeWithMessage is

namespace UserSite
{
    namespace General
    {
        public class CodeWithMessage
        {
            public int iCode { get; set; }
            public string sMessage { get; set; }
            public CodeWithMessage()
            {
            }
        }
    }
}

The webservice defines the input as

    <?xml version="1.0" encoding="utf-8"?>
    <soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
xmlns:xsd="http://www.w3.org/2001/XMLSchema" 
    xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
      <soap:Body>
        <COT xmlns="http://localhost">
          <CWM>
            <iCode>int</iCode>
            <sMessage>string</sMessage>
          </CWM>
        </COT>
      </soap:Body>
    </soap:Envelope>

I tried passing the webservice the following json

      var postdata = { "iCode": -5, "sMessage": "BlogName " }

I get back an Internal Server Error [500]

{"Message":"Invalid JSON primitive: iCode."

Do I need to wrap this up somehow to indicate it is part of this object? I tried

{"__type":"UserSite.General.CodeWithMessage","iCode":-5,"sMessage":"Blog Name Already Exists"}

Which is what CodeWithMessage returns from another webservice that sends it instead of receiving it.

Is there some reason you're not using WCF instead of the legacy ASMX technology? — John Saunders
– John Saunders, Commented Dec 2, 2011 at 2:28
hrm. I guess because I have no knowledge of how WCF works or that it even replaced ASXM. I guess I'll have to start looking into this. Thanks — Jordan
– Jordan, Commented Dec 2, 2011 at 2:51
Yeah. I took 5 years out of software development to help my family with their business and I have recently jumped back in. 2006 would be precisely when I left the field. — Jordan
– Jordan, Commented Dec 2, 2011 at 3:07
I would highly recommend looking into WCF. Here is a good reference: msdn.microsoft.com/en-us/netframework/dd939784.aspx — Robert
– Robert, Commented Dec 2, 2011 at 19:10

Pranay Rana · Accepted Answer · 2011-12-02 02:31:19Z

1

Your error says that you Json is wrong you need to check the json string you are passing to the webservice.

its may be like

var postdata = { 'iCode': '-5', 'sMessage': 'BlogName' }

check the jSon String example : http://www.json.org/js.html on jSon site........

answered Dec 2, 2011 at 2:31

Pranay Rana

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