What about security page method vis a vis asmx service.

Is page method more secure and will it work with windows integrated authentication on IIS.

Please advise.
Thanks

San

I changed it to using a POST and it worked. I wasn’t aware of the limitation of query string parameters for the GET and was hoping to use GET because my situation lends itself more to the idea of a GET rather than POST. But nevertheless it’s working now and I’m done being frustrated about it. :)

Thanks!

Not critical, but would be nice if there was a solution for this. More info on this issue here on the jQuery forum:

http://forum.jquery.com/topic/datafilter-function-and-json-string-result-problems#14737000001336005

Setting $.ajax()’s dataType parameter to “text” (or anything) solves the issue of handling invalid JSON. Since that’s just an arbitrary string that gets passed around, you can take it one step further and solve both problems fairly elegantly like this:

$.ajaxSetup({
  dataFilter: function(data, type) {
    if (type === 'ScriptMethod') {
      // JSON.parse(), strip the .d, handle dates, etc.
    }
  }
});
 
$.ajax({
  // Pass our secret handshake in to the dataFilter.
  dataType: 'ScriptMethod',
  // Carry on with a normal $.ajax() call to a service method here.
});

I haven’t used that widely, but did implement it in one project (where I had a conflict with plugins, as you mention) with solid results.

$.ajaxSetup({ dataFilter: function (jsonString, type) {
    if (type == "json") {
        // Use json library so we can fix up dates        
        var res = JSON.parseWithDate(jsonString);
        if (res && res.hasOwnProperty("d"))
            res = res.d;
        this.dataType = "text";
        return res;
    }
    return jsonString;
}
});

Otherwise every AJAX call even if it returns script or text/html will encode into JSON which is definitely a problem if you use a global filter and if other plugins are used that might make their own internal AJAX callbacks to retrieve script or other support files.

I think the dataFilter approach you show here has a serious issue if you are returning a string value result (or a date encoded as string). The problem is that jQuery parses the result from the dataFilter function again using JSON parsing (if the dataType=”json”):

if ( s && s.dataFilter ) {s
	data = s.dataFilter( data, type );
}
 
// The filter can actually parse the responsess
if ( typeof data === "string" ) {
	// Get the JavaScript object, if JSON is used.
	if ( type === "json" || !type && ct.indexOf("json") >= 0 ) {
		data = jQuery.parseJSON( data );
...
}

which means that any string result will fail with a parser error as it’s effectively double parsed.

Bummer cause there appears to be no workaround for this. Fixable if instead of type they’d use s.dataType so that the dataFilter function could change the type to “text”.

This article was really helpful, but unfortunately my problem still isn’t solved. Using Fiddler my request header is:
GET /Services/GlobalFilters.asmx/GetTechnologists?{facilityIDs:”25,27″,locationIDs:”",modalityIDs:”8″} HTTP/1.1

My asmx WebMetho header looks like this:
[WebMethod(true)]
[ScriptMethod(UseHttpGet = true)]
public IEnumerable GetTechnologists(string facilityIDs, string locationIDs, string modalityIDs)

Can you tell from that what might be going wrong?

Thanks so much!