如何为HttpWebRequest设置HttpRequestHeader？

Question

I'm trying to set the HttpRequestHeader for a HttpWebRequest like so:

new HttpWebRequest().Headers.Add(HttpRequestHeader.UserAgent, "Mozilla/4.0");

But I get an exception: System.ArgumentException: This header must be modified using the appropriate property .

How should I be setting the header?

Answer 1

UserAgent is a property. So set it like this:

HttpWebRequest request = new HttpWebRequest();
request.UserAgent = "Mozilla/4.0";