Calling a Javascript function in the C# webBrowser control

Question

I am using the webBrowser control in C# to load a webpage and need to call a JavaScript function that returns a string value. I got a solution to use the

Answer 1

Can you specify what failed?

My sample below consists of a form with a WebBrowser and a Button.

The object called y in the end has the sentence "i did it!". So with me it works.

public partial class Form1 : Form
    {

        public Form1()
        {
            InitializeComponent();

            webBrowser1.DocumentText = @"
                
                hello!";

        }

        private void button1_Click(object sender, EventArgs e)
        {
            object y = webBrowser1.Document.InvokeScript("doIt");
        }
    }