Web Crawler C# (Login Using WebRequset Object)

Asked Mar 08 '16 at 11:26

Active Mar 10 '16 at 13:24

Viewed 956 times

I am writing a Web Crawler in C#. There is this website which has two text-fields (Username & Password) and a Login button. Now I want to Submit data through my C# code using WebRequest or WebClient object, but after executing this line

NameValueCollection values = new NameValueCollection();
        values.Add("userName", "abc");
        values.Add("pwd", "Potagold201");
byte[] result = client.UploadValues(URL, "POST", values);
        string ResultAuthTicket = Encoding.UTF8.GetString(result);

I get redirected to Login Page... In short I am unable to post Data on that page.

edited Mar 10 '16 at 13:24

Mel

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asked Mar 08 '16 at 11:26

Bilal_Ur_Rehman

You are posting 'pwd', but your post says the field is called 'password'. Coincidence? – ChrisBint Mar 08 '16 at 11:29
well obviously i have to use the "ID" of the respective textfield which is pwd.. :P – Bilal_Ur_Rehman Mar 08 '16 at 11:30
Perhaps you should make that clear then – ChrisBint Mar 08 '16 at 11:30
my bad. sorry... but the problem still persisits !!! – Bilal_Ur_Rehman Mar 08 '16 at 11:32
You might want to took a look at this http://stackoverflow.com/questions/17183703/using-webclient-or-webrequest-to-login-to-a-website-and-access-data – ChrisBint Mar 08 '16 at 11:35
Did you compare your post with the actual post and requests using the browser network debugger tools? maybe you're loosing some other filed? – xvan Mar 08 '16 at 11:44
@xvan can u elaborate your thoughts, i didn't get it... did u mean to say the usage of FIDDLER ? – Bilal_Ur_Rehman Mar 08 '16 at 11:47
All browsers have an embedded debugger: ctrl+shift+q (firefox), F12 IE, ctrl + shift+ I (chrome). You can capture the network traffic on the network tab. – xvan Mar 08 '16 at 11:52

Web Crawler C# (Login Using WebRequset Object)

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