jQuery post request (not AJAX)
In an ASP.NET MVC app I use jQuery for posting data on button-click:
<button onclick="addProducts()">Add products</button>
....
$.post('<%= Url.Action("AddToCart", "Cart") %>',
{
...
returnUrl: window.location.href
});
In the "AddToCart" action of "Cart" controller I use redirection to another View after posting:
public RedirectToRouteResult AddToCart(..., string returnUrl)
{
...
return Redire开发者_如何学GoctToAction("Index", new { returnUrl });
}
All is okay, except this redirection. I stay on the same page after posting. I suspect it's due to AJAX type of "POST" request.
How to solve the problem with jQuery POST request blocking the redirection?
I created a $.form(url[, data[, method = 'POST']]) function which creates a hidden form, populates it with the specified data and attaches it to the <body>. Here are some examples:
$.form('/index')
<form action="/index" method="POST"></form>
$.form('/new', { title: 'Hello World', body: 'Foo Bar' })
<form action="/index" method="POST">
<input type="hidden" name="title" value="Hello World" />
<input type="hidden" name="body" value="Foo Bar" />
</form>
$.form('/info', { userIds: [1, 2, 3, 4] }, 'GET')
<form action="/info" method="GET">
<input type="hidden" name="userIds[]" value="1" />
<input type="hidden" name="userIds[]" value="2" />
<input type="hidden" name="userIds[]" value="3" />
<input type="hidden" name="userIds[]" value="4" />
</form>
$.form('/profile', { sender: { first: 'John', last: 'Smith', postIds: null },
receiver: { first: 'Foo', last: 'Bar', postIds: [1, 2] } })
<form action="/profile" method="POST">
<input type="hidden" name="sender[first]" value="John">
<input type="hidden" name="sender[last]" value="Smith">
<input type="hidden" name="receiver[first]" value="John">
<input type="hidden" name="receiver[last]" value="Smith">
<input type="hidden" name="receiver[postIds][]" value="1">
<input type="hidden" name="receiver[postIds][]" value="2">
</form>
With jQuery's .submit() method you can create and submit a form with a simple expression:
$.form('http://stackoverflow.com/search', { q: '[ajax]' }, 'GET').submit();
Here's the function definition:
jQuery(function($) { $.extend({
form: function(url, data, method) {
if (method == null) method = 'POST';
if (data == null) data = {};
var form = $('<form>').attr({
method: method,
action: url
}).css({
display: 'none'
});
var addData = function(name, data) {
if ($.isArray(data)) {
for (var i = 0; i < data.length; i++) {
var value = data[i];
addData(name + '[]', value);
}
} else if (typeof data === 'object') {
for (var key in data) {
if (data.hasOwnProperty(key)) {
addData(name + '[' + key + ']', data[key]);
}
}
} else if (data != null) {
form.append($('<input>').attr({
type: 'hidden',
name: String(name),
value: String(data)
}));
}
};
for (var key in data) {
if (data.hasOwnProperty(key)) {
addData(key, data[key]);
}
}
return form.appendTo('body');
}
}); });
$.post is an AJAX call.
Your best bet is to make the button a trigger for a form and just submit that using the post method.
An alternative would be to echo your new url from the server, but that defeats the point of AJAX.
Use jQuery.submit() to submit form: http://api.jquery.com/submit/
It looks like you are trying to Add Products to the cart and then redirect to your current page. My guess is is that is how you are updating the visual effect of your shopping cart. I would suggest adding the success handler on your $.post and then redirecting to the current page. If an error occurs on the server, you can send back the serialized error and handle it client side.
function addProducts() {
$.post('<%= Url.Action("AddToCart", "Cart") %>',{
returnUrl: window.location.href
}, function(data){
window.location.href = window.location.href
});
}
This will refresh your current page after your products are posted.
Here is a fiddle for reference: http://jsfiddle.net/brentmn/B4P6W/3/
If you're doing a full redirect after a post, then why do it with Ajax? You should be able to perform a tradtional POST here and have it successfully redirect.
If you really want an ajax request to go through and still redirect, a very easy and non-intrusive way to do that would be to return a JavascriptResult from your action instead of a RedirectResult:
return JavaScript("window.location = " + returnUrl);
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