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, May 28 '13 at 12:15
possible duplication: http://stackoverflow.com/questions/10765725/adding-headers-in-asp-net-mvc-3 — Dima, May 28 '13 at 12:18

score 8 · Accepted Answer · answered May 28 '13 at 12:17

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 '13 at 12:17

K D

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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. – Wellington Zanelli May 28 '13 at 12:31
Check if header exists first using Headers.AllKeys() and remove if it already exists.. – K D May 28 '13 at 12:56

Setting Header in ASP.NET MVC 4 Controller

1 Answers1