Model biding sucks!

MVC modelbiding is not working anymore. i spent alot of time trying to post some json object to my server.

mvc class: Menu

public class menu

{

public string name {get;set;}

}

my javascript on the browser which sends json to server using ajax.

request.send(JSON.stringify({ name: this.dataset.name }));

when i was debugging, i checked the value of "this.dataset.name", it's value is "one". and on server when i hit the break point at controller which recieves menu object, is not recieving menu object. here is the code.

 public ActionResult getcontent(menu m)
        {
            
            viewmodelsub vms = new viewmodelsub();
            
           
            vms.n = db.navimenus.Where(r => r.menuname == m.name).ToList();
            vms.p = db.posts.Where(r => r.navname ==vms.n.FirstOrDefault().navname).ToList();
            return Json(vms) ;
        }

Can anyone please help me with this?

Re: Model biding sucks!

sean freeman
when i hit the break point at controller which recieves menu object, is not recieving menu object.

Put the breakpoint at

sean freeman
viewmodelsub vms = new viewmodelsub();

sean freeman
MVC modelbiding is not working anymore

Does your example work on other time? Or it does not work from the beginning?

sean freeman
Model biding sucks!

Maybe

sean freeman
request.send

sucks. What framework are you using for ajax requests?

Please see my example of http://bit.ly/mvc_ajax_jquery - it works and more, gives indication about where is the error - on server or on communication side.

Re: Model biding sucks!

try json as below

{'Menu':{'name':this.dataset.name}}

Hope it helps!

Re: Model biding sucks!

what is "request.send". Are you not using the jquery ajax functions? I suggest to use jQuery to avoid compatibility problems.

Are you sending a post or a get? Because if you are sending a get...this might be a routing parameters problem

Re: Model biding sucks!

also is you request.send setting the content type to application/json?

use fiddler to monitor the requests and responses to see if you are sending valid posts.

Re: Model biding sucks!

@bruce

yeah, i'm setting the content type to "application/json". here is all my code when an event click on an element is triggered.

function menuclicked() {
    var request = new XMLHttpRequest();
    request.open("GET", 'jd/getcontent'); // Specify URL to fetch
    request.setRequestHeader("Content-Type",
"application/json");
    request.onreadystatechange = function () {
        
        if (request.readyState === 4 && request.status === 200) {
           alert((JSON.parse(request.responseText)));
        }
        else if (request.readyState === 4 && request.status !== 200)
            alert('error');
    };

    request.send(JSON.stringify({ name: this.dataset.name }));
}

Still i'm having this same problem !

thanks for your reply~!

Re: Model biding sucks!

@gopakumar

that didnt work out !

anyway thanks.

Re: Model biding sucks!

1. i dont think putting the break point in a different solution solves this problem in this situation. even though i tried but .....

2. this process did work before. now i'm working on another web site now it's having this problem.

3. haha ,

'Request.send" doesnt suck. it's a built in javascript method in every browser. i debugged this code using fiddler and IE developer tools. and it's infact sending the server a json object.

4. i don't use somebody's framework for my website.

Re: Model biding sucks!

sean freeman
i dont think putting the break point in a different solution solves this problem in this situation. even though i tried but

I did not tell to put in another solution. Do you have more than one?

sean freeman
2. this process did work before. now i'm working on another web site now it's having this problem.

Maybe you did not add all js references.

sean freeman
'Request.send" doesnt suck. it's a built in javascript method in every browser.

Please provide reference about this javascript function . I did not found.( and it is in lynx.browser.org too? Also in IE 5 ? Netscape 1.0 ?)

Later Edit: Now I see that your request is , in fact, XMLHttpRequest() . And you do use GET , not POST - and, usually, GET is denied on ajax requests for MVC ( can be changed). And what version of IE are you using?

Re: Model biding sucks!

sean freeman

request.open("GET", 'jd/getcontent')

PLease use POST.

Re: Model biding sucks!

Thre you go!

yeah, it was actually POST, not GET. thats why it worked before. i'm sorry for that,

Model Binding doesn't suck anymore!

it's just my mistake.

Thank you all for you replies. i really appreciate it.

Re: Model biding sucks!

Moral of the story:
If it works first time, and second time not, spot the differences - do not accuse something tested by other developers.