使用C#的第一个WP程序

 //委托对象
        DelegateTest delegateObject;
        delegate void DelegateTest(int i);
        /// <summary>
        /// 按钮点击事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void Button_Click(object sender, RoutedEventArgs e)
        {
            delegateObject = SetColor;
            Thread thread = new Thread(ChangeColorThread);
            thread.Start();  
        }
        /// <summary>
        /// 修改颜色线程
        /// </summary>
        public void ChangeColorThread()
        {
            for (int i = 0; i < 100; i++)
            {
                //调用委托
                this.Dispatcher.BeginInvoke(delegateObject, i);
                //一秒钟变换一次
                Thread.Sleep(1000);
            }

        }
        public void SetColor(int i)
        {
            
            Random r = new Random();
            //取随机数
            int col = r.Next(0, 5);
            //调用方法根据不同的数字更新不同的颜色
            Title.Foreground = new SolidColorBrush(GetColorValue(col));
            
        }
        public void UpdateColor()
        {
            //循环100次
            for (int i = 0; i < 100; i++)
            {
                this.Dispatcher.BeginInvoke(delegateObject, i);
                Thread.Sleep(1000);
                //睡眠1秒
            }
        }
        /// <summary>
        /// 该方法可以用来获取颜色
        /// </summary>
        /// <param name="i"></param>
        /// <returns></returns>
        public System.Windows.Media.Color GetColorValue(int i)
        {
            switch (i)
            {
                case 0:
                    return Colors.Blue ;

                case 1:
                    return Colors.Brown;
                case 2:
                    return Colors.Cyan;
                case 3:
                    return Colors.Green;
                case 4:
                    return Colors.Red;
                default:
                    return Colors.Orange;

            } 
            
        }