Asp.net request.UrlReferrer is null

Question

in my web application Request.UrlReferrer is null. how can i set UrlReferrer ?

what do you need it for? IMO you better look for alternative way as the referrer is not stable to begin with. — user447356
– user447356, Commented Feb 15, 2011 at 9:57

Stilgar · Accepted Answer · 2011-02-15 09:47:51Z

2

You don't need to set the UrlReferrer. The referrrer is something that the browser sends to the server. This property is how you read what the browser sent as a referrer. For obvious reasons you cannot set what the browser sends you because your server does not control it.

Why do you want to set it anyway?

answered Feb 15, 2011 at 9:47

Stilgar

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2 Comments

maycil Over a year ago

actualy i don't want to set UrlReferrer, I want to be sure that UrlReferrer is not null. But in my application(when i logged in) is null.

Stilgar Over a year ago

You cannot depend on UrlReferrer because the browser may not send it. What is more someone can open the page directly.

Oddacon · Accepted Answer · 2016-03-29 15:12:25Z

0

you want to make sure UrlReferrer is not null. if you do not it can create 'Object reference not set to an instance of an object.' error.

if (!(Request.UrlReferrer == null)) {
    'if Request.UrlReferrer is not null do this 
}
else {
    'set Request.UrlReferrer to null
}

answered Mar 29, 2016 at 15:12

Oddacon

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