csharp/console/DomForm/Program.cs

#region Copyright

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// modification, must retain the above copyright notice and the following
// disclaimer.
// 
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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#endregion

using System;
using System.Text;
using System.Threading;
using DotNetBrowser.Browser;
using DotNetBrowser.Dom;
using DotNetBrowser.Engine;

namespace DomForm
{
    /// <summary>
    ///     This example demonstrates how to fill HTML Form fields using DotNetBrowser DOM API.
    /// </summary>
    internal class Program
    {
        public static void Main()
        {
            using (IEngine engine = EngineFactory.Create())
            {
                using (IBrowser browser = engine.CreateBrowser())
                {
                    byte[] htmlBytes =
                        Encoding.UTF8.GetBytes("<html><body><form name=\"myForm\">"
                                               + "First name: <input type=\"text\" id=\"firstName\" name=\"firstName\"/><br/>"
                                               + "Last name: <input type=\"text\" id=\"lastName\" name=\"lastName\"/><br/>"
                                               + "<input type='checkbox' id='agreement' name='agreement' value='agreed'>I agree<br>"
                                               + "<input type='button' id='saveButton' value=\"Save\" onclick=\""
                                               + "if(document.getElementById('agreement').checked){"
                                               + "    console.log(document.getElementById('firstName').value +' '+"
                                               + "document.getElementById('lastName').value);}"
                                               + "\"/>"
                                               + "</form></body></html>");
                    browser.Navigation
                           .LoadUrl($"data:text/html;base64,{Convert.ToBase64String(htmlBytes)}")
                           .Wait();

                    IDocument document = browser.MainFrame.Document;
                    IInputElement firstName =
                        (IInputElement) document.GetElementByName("firstName");
                    IInputElement lastName =
                        (IInputElement) document.GetElementByName("lastName");
                    IInputElement agreement =
                        (IInputElement) document.GetElementByName("agreement");

                    firstName.Value = "John";
                    lastName.Value = "Doe";
                    agreement.Checked = true;

                    browser.ConsoleMessageReceived += (sender, args) =>
                    {
                        Console.WriteLine($"JS Console: < {args.Message}");
                    };
                    document.GetElementById("saveButton").Click();
                    Thread.Sleep(3000);
                }
            }

            Console.WriteLine("Press any key to terminate...");
            Console.ReadKey();
        }
    }
}