ProgressBar 基础应用(简单)

创建一个简单的窗体,界面如下:

“基础应用”按钮对应的代码:

        /// 方法一: 
        /// 修改 progressBar1.Value 来使进度条显示发生变化
         /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btnEasy_Click(object sender, EventArgs e)
        {
            progressBar1.Minimum = 1;
            progressBar1.Maximum = 100000;
            for (int i = 0; i < progressBar1.Maximum; i++)
            {
                progressBar1.Value = i;
            }
        }

        /// <summary>
        /// 方法二: 
        /// 设置 Step 属性,调用 PerformStep() 来使进度条显示发生变化
         /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btnEasy_Click1(object sender, EventArgs e)
        {
            progressBar1.Minimum = 1;
            progressBar1.Maximum = 100000;
            progressBar1.Step = 1;
            for (int i = 0; i < progressBar1.Maximum; i++)
            {
                progressBar1.PerformStep();
            }
        }

各分钟按钮对应代码:

        /// <summary>
        /// 分钟按钮的 Tag 值里分别保存了 2, 5, 10
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btnAnySecond_Click(object sender, EventArgs e)
        {
            progressBar1.Minimum = 0;
            progressBar1.Maximum = 100;
            progressBar1.Value = 0;
            progressBar1.Step = 1;

            Button btn = sender as Button;
            timer1.Interval = Convert.ToInt32(btn.Tag) * 10;
            count = 0;
            timer1.Enabled = true;
        }

        private int count = 0;

        private void timer1_Tick(object sender, EventArgs e)
        {
            progressBar1.PerformStep();
            if (++count == 100)
            {
                timer1.Enabled = false;
            }
        }

        private void btnStop_Click(object sender, EventArgs e)
        {
            progressBar1.Value = 0;
            timer1.Enabled = false;
        }