C#

HtmlElement headElement = webBrowser3.Document.GetElementsByTagName("head")[0];
HtmlElement scriptElement = webBrowser3.Document.CreateElement("script");
IHTMLScriptElement element = (IHTMLScriptElement)scriptElement.DomElement;
element.text = "function fillbox() { document.getElementById('ember891').value = 'test@test.com' }";
headElement.AppendChild(scriptElement);
webBrowser3.Document.InvokeScript("fillbox");

javascript:document.getElementById('ember891').value = 'test@test.de'

I have uploaded a C # ActiveX control inside an MFC ActiveX control.

The WebBrowser inside the C # ActiveX control does not communicate with the script.

Is there a solution?

<pre>
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Fractionapp
{
    class Fraction
    {

        private int numerator;
        private int denominator;

        // no parameter constructor.
        public Fraction()
        {
            numerator = 0;
            denominator = 0;
        }

        // two parameter constructor.
        public Fraction(int num, int den)
        {
            numerator = num;
            Denominator = den;
            Reduce();
        }

        // numerator property.
        public int Numerator
        {
            get
            { return numerator; }
            set
            { numerator = value; }
        }

        // denominator property.
        public int Denominator
        {
            get
            {
                return Denominator;
            }
            set
            {
                if (value == 0)
                {
                    throw new ArgumentOutOfRangeException("Denominator", value, "Denominator cannot be zero");

                }
            }
        }

        // reduce method.
        private void Reduce()
        {
            int GCD = 0;
            for (int x = 1; x <= denominator; x++)
            {
                if ((numerator % x == 0) && (denominator % x == 0))
                    GCD = x;
            }
            if (GCD != 0)
            {
                numerator = numerator / GCD;
                denominator = denominator / GCD;
            }
        }

        //// to string method.
        public override string ToString()
        {
            return numerator + "/" + denominator;

        }

    }
    }

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;


namespace Fractionapp
{

    public partial class Form1 : Form
    {
        //Fraction fr1 = new Fraction();
        //int divisor, numerator, denominator, reducedNumerator, reducedDenominator;
        public Form1()
        {

            InitializeComponent();

        }

        private void btnCalculateFraction_Click(object sender, EventArgs e)
        {


            

            {
                
                Fraction fr2 = new Fractionapp.Fraction(Convert.ToInt32(txtNumerator.Text), Convert.ToInt32(txtDenominator.Text));
                
                txtReduced.Text = "The lowest form of the inputted fraction is: " + fr2.ToString();
                
               
            }
}
}
}

#VALUE!