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The Request object is what you received from the client. &nbsp;If you want to send a cookie back you need to use the Response object
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The Request object is what you received from the client.  If you want to send a cookie back you need to use the Response object

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According to MS, the CookieContainer.SetCookies<wbr /> Method &quot;ADDS Cookie instances for one or more cookies from an HTTP cookie header to the CookieContainer for a specific URI,&quot; but what if I wanted to REPLACE a Cookie instance? &nbsp;The below creates two instances of the same header. &nbsp;I just want one.<br />
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Uri uri = new Uri(url);<br />
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Console.WriteLine(MyHttpRe<wbr />quest.Cook<wbr />ieContaine<wbr />r.GetCooki<wbr />eHeader(ur<wbr />i));<br />
// displays &quot;MyCookie: MyValue&quot;<br />
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MyHttpRequest.CookieContai<wbr />ner.SetCoo<wbr />kies(uri,&quot;<wbr />MyCookie: MyNewValue);<br />
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Console.WriteLine(MyHttpRe<wbr />quest.Cook<wbr />ieContaine<wbr />r.GetCooki<wbr />eHeader(ur<wbr />i));<br />
// displays &quot;MyCookie: MyNewValue; MyCookie: MyValue,&quot; rather than just &quot;MyCookie: MyNewValue&quot;
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According to MS, the CookieContainer.SetCookies Method "ADDS Cookie instances for one or more cookies from an HTTP cookie header to the CookieContainer for a specific URI," but what if I wanted to REPLACE a Cookie instance?  The below creates two instances of the same header.  I just want one.

Uri uri = new Uri(url);

Console.WriteLine(MyHttpRequest.CookieContainer.GetCookieHeader(uri));
// displays "MyCookie: MyValue"

MyHttpRequest.CookieContainer.SetCookies(uri,"MyCookie: MyNewValue);

Console.WriteLine(MyHttpRequest.CookieContainer.GetCookieHeader(uri));
// displays "MyCookie: MyNewValue; MyCookie: MyValue," rather than just "MyCookie: MyNewValue"

Replacing a Cookie instance

C# is an object-oriented programming language created in conjunction with Microsoft’s .NET framework. Compilation is usually done into the Microsoft Intermediate Language (MSIL), which is then JIT-compiled to native code (and cached) during execution in the Common Language Runtime (CLR).