jquery autocomplete extraParams

I开发者_开发百科m using jquery autocomplete can I pass extraParams to webservice in asp.net ? and how will my [WebMethod] get it ?

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You pass an extra params function as follows:

$("#controlId").setOptions(
                    {
                        extraParams:
                        {
                            extra: function()
                            {
                                return "Something";
                            }
                        }
                    }
                );

You then retrieve this in your webservice using:

    string yourParam = <HttpContext Goes Here>.QueryString["extra"];