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ASP.NET Overwrite a cookie

I'm using the attached javascript code to set a cookie from view.aspx. What I would like to do, is overwrite that cookie from default.aspx. I've tried the following four methods and none of them seem to overwrite what was set with the js function. All of these methods were in the Page_Load.

Method 1:
Dim aCookie As New HttpCookie("ActiveTab")
aCookie.Value = "1"
aCookie.Expires = DateTime.Now.AddDays(30)
Response.Cookies.Add(aCookie)

Method 2:
Response.Cookies.Add(New HttpCookie("ActiveTab", "1"))

Method 3:
Response.Cookies("ActiveTab").Value = "1"
Response.Cookies("ActiveTab").Expires = DateTime.Now.AddDays(30)

Method 4: (Just expire the cookie)
If (Not Request.Cookies("ActiveTab") Is Nothing) Then
Dim myCookie As HttpCookie
myCookie = New HttpCookie("ActiveTab")
myCookie.Expires = DateTime.Now.AddDays(-1D)
Response.Cookies.Add(myCookie)
End If

function clientActiveTabChanged(sender, args) {
      var ActiveTab = sender.get_activeTabIndex() ;
          var expiredays =30;
          var c_name="ActiveTab";
          var exdate=new Date();
      exdate.setDate(exdate.getDate()+expiredays);
      document.cookie=c_name+ "=" +escape(ActiveTab)+
      ((expiredays==null) ? "" : ";expires="+exdate.toGMTString());
      }

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Cerixus

ASKER

This is a follow up to https://www.experts-exchange.com/questions/25480103/ASP-NET-Use-OnClientActiveTabChanged-to-remember-selected-tab-restore-on-postback-pageload.html if you need more reference...

masterpass

In the page_load of the view page ....

If(!IsPostBack)
{
TabPanel1.ActiveTabIndex = 1;
}

just see if it works .. other wise we ll go for cookie overwrite

Cerixus

ASKER

No, that won't work.

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masterpass

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Cerixus

ASKER

Yeah, I thought about doing it with javascript again, but I was hoping there was a simpler, .net way. I guess it's not a big deal either way...

Cerixus

ASKER

And I get "Undetermined String Constant" on that function for some reason...

masterpass

Try putting a space between = and 1 (it was together initially)

document.cookie=c_name+ "= 1" + ((expiredays==null) ? "" : ";

Cerixus

ASKER

Changed to attached and it works great

(put on same line and added a semicolon after setting the value (1)

    function LoadInitialTab()
    {
        var expiredays =30;
        var c_name="ActiveTab";
        var exdate=new Date();
        exdate.setDate(exdate.getDate()+expiredays);
        document.cookie=c_name+ "=1;" + ((expiredays==null) ? "" : "expires="+exdate.toGMTString());
    }

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masterpass

Good work Cerixus :)