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

namespace WindowsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            String ln = textBox1.Text;
            if (!ln.StartsWith("<") || !ln.EndsWith(">"))
            {
                MessageBox.Show("Ikke korrekt HTML tag");
                return;
            }
            else
            {
                textBox2.Text = "korrekt HTML tag \r\n";
                ln = ln.Substring(1, ln.Length - 2);


                if (ln.IndexOf('=') == -1)
                {
                    textBox2.Text += "Navn: '" + ln + "' \r\n";
                }
            }
        }
    }
}