C# HttpWebRequest & HttpWebResponse

Question

I have a question/I need help, I'm trying to make a "updater" for my C# program, and I'm always getting this error

Cannot implicitly convert type 'System.Net.WebRequest' to 'System.Net.HttpWebRequest'. An explicit conversion exists (are you missing a cast?)

I was trying to make this "updater" as similar as possible to my .vb "updater", if anyone could help me solve this error I would be very thankful and happy, or if someone can send me a link to read about C# etc. I would also be very thankful, I'm very new to C# or the C family as well

System.Net.HttpWebRequest request = System.Net.HttpWebRequest.Create("link");
System.Net.HttpWebResponse response = request.GetResponse();
System.IO.StreamReader sr = new System.IO.StreamReader(response.GetResponseStream());
string newestversion = sr.ReadToEnd();
string currentversion = Application.ProductVersion;

Community · Accepted Answer · 2018-10-27 10:20:31Z

4

You have to use the System.Net.WebRequest.Create method and cast the returned instance to System.Net.HttpWebRequest:

HttpWebRequest myReq =
    (HttpWebRequest)WebRequest.Create("http://www.contoso.com/");

See: https://msdn.microsoft.com/en-us/library/system.net.httpwebrequest(v=vs.110).aspx#Anchor_7

edited Oct 27, 2018 at 10:20

CommunityBot

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answered Nov 9, 2015 at 17:56

James Wright

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krivtom · Accepted Answer · 2015-11-09 17:56:06Z

1

If you look at documentation for WebRequest.Create you will see that return type of the method is WebRequest, so you need to return it in your code:

System.Net.WebRequest request = System.Net.HttpWebRequest.Create("http://www.google.com");
System.Net.WebResponse response = request.GetResponse();
System.IO.StreamReader sr = new System.IO.StreamReader(response.GetResponseStream());
string newestversion = sr.ReadToEnd();

answered Nov 9, 2015 at 17:56

krivtom

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1 Comment

BloodfallenTear Over a year ago

Thank you a lot, you really helped me out mate, and everyone that commented on here, thank you everyone! :D

Cory Nelson · Accepted Answer · 2015-11-09 17:55:32Z

0

HttpWebRequest.Create() is actually WebRequest.Create(), which returns a WebRequest. You can cast it to HttpWebRequest if needed.

answered Nov 9, 2015 at 17:55

Cory Nelson

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