CODEWITHSUNDEEP
asp.net-mvc-3jquery
kheya
kheya

Reputation: 7622

How do I pass multiple parameters to MVC controller from jQuery $.ajax()?

This is what I doing to build the data:

for (var i = args.length; i < args.length; i += 2) {
    if (args.length != 0) args += ','; 
    args += '"' + arguments[i] + '":"' + arguments[i + 1] + '"';
}

This is how I am calling:

$.ajax({
        type: "GET",
        url: "/blog/GetPosts",
        //data: "{" + args + "}",                    <- gives 500 in 1.6 but works in 1.3
        data: "app=blog&id=100&page=2&pagesize=10",  <- this works
        contentType: "application/json; charset=utf-8",
        dataType: "json",
        success: function (res) {},
        error: function (xhr, status, error) {}
});

How to build the data with multiple parameters and pass to controller? I need to loop and build the data since I have variable length of parameters.

Note that this works: data: "app=blog&id=100&page=2&pagesize=10"

But I can have &abc=something in the data itself which will be treated as another parameter.

Thanks for reading

Upvotes: 2

Views: 5667

Answers (5)

Guffa
Guffa

Reputation: 700362

Don't create the string representation of an object, create an object instead. Also, your loop is wrong, so it would not get the values from the array properly.

var data = {};
for (var i = 0; i < arguments.length; i += 2) {
  data[arguments[i]] = arguments[i + 1];
}

Now use the variable in the call:

$.ajax({
  type: "GET",
  url: "/blog/GetPosts",
  data: data,
  ...

Upvotes: 2

Mike Ruhlin
Mike Ruhlin

Reputation: 3556

You don't need to pass a query string into data. If you're passing multiple values, you should pass in an object.

$.ajax({
        type: "GET",
        url: "/blog/GetPosts",
        data: {
            app: 'blog',
            id: 100,
            page: 2
            pagesize: 10
        },
        contentType: "application/json; charset=utf-8",
        dataType: "json",
        success: function (res) {},
        error: function (xhr, status, error) {}
});

jQuery will handle the URL encoding for you.

Upvotes: 2

Shaunak
Shaunak

Reputation: 18028

The data: "app=blog&id=100&page=2&pagesize=10" works and this //data: "{" + args + "}" doesnt Because you are using "GET" as request type. to send the data along you need the request to be of type "POST" a GET request can only send the params along with the url.

Upvotes: 0

Raynos
Raynos

Reputation: 169401

data: JSON.stringify(someObject)

Store your key/value data in an object then pass the stringified version to data

Upvotes: 1

no.good.at.coding
no.good.at.coding

Reputation: 20371

It sounds like you need to make use of encodeURIComponent to encode the parameter values that have special characters such as &, + or =. You might also want to check out the comparison between escape(), encodeURI() and encodeURIComponent().

Alternatively, you might make use of $.serialize()

Upvotes: 0

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