using System;
using System.Windows.Forms;

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

        private void button1_Click(object sender, EventArgs e)
        {
            try
            {
                string str = "true";
                bool flag = System.Convert.ToBoolean(str);
                MessageBox.Show("flg value is " + flag);
            }
            catch (Exception ex)
            {
                MessageBox.Show("Cannot conver the value" + ex.ToString() );
            }
        }
    }
}