Setting Header in ASP.NET MVC 4 Controller

Question

I am trying to insert an header in my controller according with the parameter sub, but with no success. I have tried these two lines, here's the code:

public ActionResult Index(string sub)
{
    if (!string.IsNullOrEmpty(sub))
    {
        HttpContext.Response.Headers.Add("sub", sub);
        Response.AddHeader("sub", sub);
    }

    return View();
}

Try this HttpContext.Current.Response.AppendHeader("sub",sub); OR Try this HttpContext.Response.AppendHeader("sub",sub); — K D
– K D, Commented May 28, 2013 at 12:15
possible duplication: stackoverflow.com/questions/10765725/… — Dima
– Dima, Commented May 28, 2013 at 12:18

K D · Accepted Answer · 2013-05-28 12:17:35Z

8

This may work for you..

public ActionResult Index(string sub)
{
    if (!string.IsNullOrEmpty(sub))
    {
        HttpContext.Response.AppendHeader("sub", sub);

    }
return View();
}

answered May 28, 2013 at 12:17

K D

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2 Comments

Wellington Zanelli Over a year ago

Thank you, this worked for me, but now I have another problem. My header is like an array, because previously I have setted the value "0" in it. How can I clear this header before setting it again? Now the header is like: "xxxxx, 0" where 0 is the previous value.

K D Over a year ago

Check if header exists first using Headers.AllKeys() and remove if it already exists..

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