Server.ServerSideMenu.IPoints_TextChanged C# (CSharp) Méthode

        private void IPoints_TextChanged(object sender, EventArgs e)
        {
            try
            {
                pointsToWin = Int32.Parse(IPoints.Text);
            }
            catch (FormatException ex)
            {
                this.Text = "Sorry you must enter a int number";
            }
        }