ReturnUrl Duplicating Parameters - MVC 4

Question

User2066740583 posted

I'm having problem with retunUrl what is duplicating my QueryString parameters.

My url is like:

"www.mysite.com/Order/?id=1&item=123"

then, redirect me to login page and the url look like:

"www.mysite.com/login/RedirectUrl=/Order?id=1&item=123&id=1&item=123"

After the user login, the action redirect to:

"www.mysite.com/Order/?id=1&item=123&id=1&item=123"

In my page when i use Request.QueryString["id"] i got an error, because the querystring "ID" is duplicated.

My login Action code look like this:

[httpPost]

[AllowAnonymous]

public ActionResult Index(LoginModel model, string ReturnUrl)

{

             if(VerifyLogin(model))

             {

                     if(ReturnUrl != null)

                               return Redirect(ReturnUrl); //redirect with duplicated parameters

                       else

                                 return Redirect("/Home");

              }

              else

                       ModelState.AddModelError("", "Invalid Username or Password");

             return View();

}

How i can solve this problem?

Answer 1

User1262634031 posted

I think you attach parametes to

www.mysite.com/Order

then it becomes "www.mysite.com/Order/?id=1&item=123"

but somewhere in your code you again attach parameters to this ("www.mysite.com/Order/?id=1&item=123") resulted url 

Answer 2

User2066740583 posted

i dont attach querystring again to the url!

if i put break point in the begining of the Action, returnUrl already contains duplicated parameter.

Answer 3

User-417640953 posted

Hi fabiodrm,

Based on your description, I got that your url parameters are duplicating in mvc4 project.

For this issue, I think you are using IIS Url Rewrite module. If so please set the appendQueryString as false like below.

<rule name="Company Category">
<match url="company_category/([0-9]+)/(?:[^/]*)/?" />
<action type="Rewrite" url="company_search.aspx?cat={R:1}" appendQueryString="true" />
</rule>

Similar issue.

http://forums.iis.net/t/1176016.aspx

 

Hope this helps, thanks.

 

Best Regards!