How to login window authorisation

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I have probelem guys i am taking HMTL code from my local Site i am using this code

C#

         // We'll use WebClient class for reading HTML of web page
WebClient MyWebClient = new WebClient();

// Read web page HTML to byte array
Byte[] PageHTMLBytes;
if (textBox1.Text != "")
{

  PageHTMLBytes = MyWebClient.DownloadData(textBox1.Text);

  // Convert result from byte array to string
  // and display it in TextBox txtPageHTML
  UTF8Encoding oUTF8 = new UTF8Encoding();
  richTextBox1.Text = oUTF8.GetString(PageHTMLBytes);
}

buut this site first need Windows Authoristation i know User and password buuut how can i authorise with form it is erroring mee unauthorise beaocuse i don't enter any user and password i need that form that will take this password in password field and user in user field Help guys

Posted 6-Jan-16 0:55am

GTR0123

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Nathan Minier · Accepted Answer · 2016-01-06T02:08:00

If the target page is using Windows authentication it's easy:

C#

         // We'll use WebClient class for reading HTML of web page
WebClient MyWebClient = new WebClient();
MyWebClient.Credentials = new NetworkCredential("myusername","mypassword");
 
// Read web page HTML to byte array
Byte[] PageHTMLBytes;
...

This will add the windows credentials into the authentication header.

If a different authentication mechanism is being used, you will need to provide the credentials in a different way. A really good example for forms authentication can be found at:
c# - WebClient accessing page with credentials - Stack Overflow[^]