what is web method attribute in web service?

Question

what is web method attribute in web service? fro example

[WebMethod(EnableSession = true)]
[ScriptMethod(UseHttpGet = true)]
public string GetApplicationDomains(string strParameterList)
{

}        

for what purpose this attributes WebMethod and ScriptMethod are used?

Solution 1

WebMethod indicates "the method exposed as part of the XML Web service."
ScriptMethod "Specifies which HTTP verb is used to invoke a method, and the format of the response"

Solution 2

WebMethod attribute identifies this method as a web service method.

The ScriptMethodAttribute attribute is optional.

If a method is not marked with ScriptMethodAttribute, the method will be called by using the HTTP POST command and the response will be serialized as JSON. You cannot override this setting from script.

Solution 3

The WebMethod attribute enables the method to be called through the web service.

The ScriptMethod attribute tells which method should be used to call the method (POST/GET) and with formatting the response should use (JSON or XML)