Logging in to a web site from C# Windows Application

Question

3.00/5 (1 vote)

See more:

Hi,

I have a windows forms application which is event based. So when the form loads up, I have to launch a web page (login page) and use the configured User Id and Password to login to the web site.

When an even occurs in the application, I will then launch the appropriate URL's, which will bring the pages specific to the user.

The main hurdle for me is the first part. Can some one help me with how I should proceed on achieving that?

I am very new to the web related part of the programming. Any replies with code snippets will be appreciated.

Thanks in advance,
-Bhaskar

Posted 7-Mar-11 23:08pm

bhaskar82in

Add a Solution

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Ryan Zahra · Answer 1 · 2011-03-07T23:29:00

Solution 1

The below code will open the default browser and navigate to the website.

C#

string target= "http://www.google.com";

try
{
    System.Diagnostics.Process.Start(target);
}
catch(System.ComponentModel.Win32Exception noBrowser)
{
    if (noBrowser.ErrorCode==-2147467259)
        MessageBox.Show(noBrowser.Message);
}
catch (System.Exception other)
{
    MessageBox.Show(other.Message);
}

Also, do you want to pass the credentials? You can pass them as encrypted parameters in the query string or you can also use cookies.

Posted 7-Mar-11 23:29pm

Ryan Zahra

Updated 7-Mar-11 23:40pm

v2

Comments

bhaskar82in 8-Mar-11 5:41am

Hi Ryan,

Thanks for your reply. The code snippet you provided will help me launch a browser with the web page only. The main challenge I am facing is to pass the credentials to the web page and validate them in case of incorrect password/login id.

Thanks for your help.
-Bhaskar

Ryan Zahra 8-Mar-11 5:44am

Write a cookie: http://msdn.microsoft.com/en-us/library/aa287547(v=VS.71).aspx
Read a cookie: http://msdn.microsoft.com/en-us/library/aa287533(v=VS.71).aspx

Before launching the webpage, create the cookies.
When the webpage is being loaded, search for the cookies.