Get the application's JavascriptSerializer in a old ASP.NET ASMX web service

Question

I have an old ASP.NET ASMX webservice

public class MyWS : System.Web.Services.WebService

I was able to use some features of the JavaScriptSerializer like ScriptIgnore, but if I want to register a custom converter, where would I grab the application's serializer object so I could register it?

I looked into GlobalConfiguration but it's not something available (yet) in this old version.

My functions are decorated with:

[WebMethod(EnableSession = true)]
[ScriptMethod(ResponseFormat = ResponseFormat.Json)]

And return objects that are serialized to Json just fine, but I want more control.

Answer 1

There really isn't a need to "grab" the application's serializer to register new converters. They simply have to be defined in web.config:

<system.web.extensions>
    <scripting>
        <webServices>
            <jsonSerialization maxJsonLength="2147483644">
                <converters>
                    <add name="MyJavaScriptConverter"
                         type="Company.Webservice.Utilities.MyJavaScriptConverter, Company.Webservice, Version=1.0.0.0, Culture=neutral"/>
                </converters>
            </jsonSerialization>
        </webServices>
    </scripting>
</system.web.extensions>

The MyJavaScriptConverter class above only has to inherit the JavaScriptConverter abstract class.