Sending url with parameter to action function via javascript

Question

I am trying to open new window using window.open(actionUrl) the actionUrl is compose form the action address and url as parameter. so eventually the actionUrl is : "/Default/Details?url= http://www.someaddress.com?a1=1&a2=2&a3=3 " However in the action the url i get is : " http://www.someaddress.com?a1=1 " I do not get "&a2=2&a3=3" parameters

Here is the relevant view code:

<div>
    <input type="button" value="test" id="btnTest" />
</div>

<script>
    var vurl = '@Url.Action("Details", "Default")';
    $(function () {
        $("#btnTest").click(function () {
            var url = "http://www.someaddress.com?a1=1&a2=2&a3=3";
            vurl = vurl + url;
            window.open(vurl);

        });
    })

</script>

and this is the controller and action

 public class DefaultController : Controller
{
    // GET: Default
    public ActionResult Index()
    {
        return View();
    }

    // GET: Default/Details/5
    public ActionResult Details(string url)
    {
        return View();
    }
}

Answer 1

You need to use the encodeURIComponent function on the url parameter's value:

var actionUrl = '/Default/Details?url=' + encodeURIComponent('http://www.someaddress.com?a1=1&a2=2&a3=3');

The &a2=2&a3=3 part was actually part of the /Default/Details URL, not the http://www.someaddress.com one. Now that the inner URL is URI encoded, it should work.

Make sure to decode the value when using the url parameter though, using decodeURIComponent :

var urlMatch = location.search.match(/url=(.*)&?/);
if (urlMatch) {
    var decodedUrl = decodeURIComponent(urlMatch[1]);
    // do something with the decoded URL...
}

EDIT

For the first part (URI encoding) and based on your code, you should use it this way:

<div>
    <input type="button" value="test" id="btnTest" />
</div>

<script>
    var vurl = '@Url.Action("Details", "Default")';
    $(function () {
        $("#btnTest").click(function () {
            var url = "http://www.someaddress.com?a1=1&a2=2&a3=3";
            vurl = vurl + encodeURIComponent(url);
            window.open(vurl);

        });
    })

</script>

As for the ASP.NET part and the use of the string url parameter, I'd suggest checking the following post: using decodeURIComponent within asp.net as I'm not familiar with this environment.