Connect .Net project to a website

Question

Hi everyone,

I want to login to a website (any website with a login screen) but instead of typing my credentials into a website's login text fields, I want my C# code to do it for me automatically.

The issue is that I don't know how to connect my .Net project to interactive with an external website. I tried using a webBrowser control but it's not efficient.

Answer 1

@Nicholas Nguyen , based on your description, you could try the following code to login into a website in the winform:

private void Form1_Load(object sender, EventArgs e)  
        {  
            webBrowser1.Navigate("https://somesite.com/");  
        }  
  
        private void button1_Click(object sender, EventArgs e)  
        {  
            if (webBrowser1.ReadyState == WebBrowserReadyState.Complete)  
            {  
                HtmlDocument htmlDoc = this.webBrowser1.Document;  
                ////set account  
                HtmlElement id = htmlDoc.GetElementById("username");  
                id.SetAttribute("value", txtName.Text.Trim());  
                //set password  
                HtmlElement pwd = htmlDoc.GetElementById("password");  
                pwd.SetAttribute("value", txtPassword.Text.Trim());  
                //login  
                var btn = htmlDoc.GetElementsByTagName("div").Cast<HtmlElement>().Where(i=>i.InnerText== "sign in ").First();  
                if (btn != null)  
                {  
                    btn.InvokeMember("click");  
                }  
            }  
  
        }  

Note: We need to achieve the htmlelement for username, password and sign in button and set the value for username and password and finally click the button.

Example html:

Best Regards,
Jack

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