How to Directly Generate JSON Output from ASMX WebMethods?

Generating JSON from ASMX Web Services

Many developers encounter challenges when attempting to generate JSON output directly from ASMX web methods. While configuring ResponseFormat is frequently proposed, it often proves insufficient. A more effective method involves directly manipulating the response.

Direct JSON String Output: The Solution

Instead of relying on ResponseFormat, directly write the JSON string to the HttpResponse object. This approach requires changing the WebMethod's return type to void. Here's the implementation:

<code class="language-csharp">    [System.Web.Script.Services.ScriptService]
    public class WebServiceClass : System.Web.Services.WebService {
        [WebMethod]
        public void WebMethodName()
        {
            HttpContext.Current.Response.Write("{property: value}");
        }
    }</code>

This method produces clean JSON output, free from XML wrapping, offering enhanced control and flexibility.

The above is the detailed content of How to Directly Generate JSON Output from ASMX WebMethods?. For more information, please follow other related articles on the PHP Chinese website!