进度条

一、主要实现的是输入进度条最大数，点开始进度条会往前加载，同时将日志存到文本框2里面去

二、编辑代码

namespace 进度条Again
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
            button1.Enabled = false;
            button2.Enabled = false;
            button3.Enabled = false;
        }
      
        private void button1_Click(object sender, EventArgs e)//开始按钮
        {   
            if(string.IsNullOrWhiteSpace(textBox1.Text))
            {
                return;
            }
            else
            {
                button2.Enabled = true;
                button3.Enabled = true;
                toolStripProgressBar1.Value = 0;//进度条当前值为0
                toolStripProgressBar1.Minimum = 0;//进度条最小值为0
                toolStripProgressBar1.Maximum = Convert.ToInt32(textBox1.Text);//进度条最大值为文本框1输入的数
                timer1.Enabled = true;
            }
        }

        private void textBox1_TextChanged(object sender, EventArgs e)//当文本框1文本改变的时候button1才可以用
        {
            button1.Enabled = true;
        }

        private void button2_Click(object sender, EventArgs e)//暂停
        {　　 
　　　　　　　button1.Enabled = false;
            if (button2.Text == "暂停")
            {
                timer1.Enabled = false;
                button2.Text = "继续";
                textBox2.AppendText(DateTime.Now.ToString("HH:mm:ss") + "进度暂停" + "
");//AppendText追加文本
            }
            else
            {
                timer1.Enabled = true;
                button2.Text = "暂停";
                textBox2.AppendText(DateTime.Now.ToString("HH:mm:ss") + "进度继续" + "
");
            }
            
        }

        private void button3_Click(object sender, EventArgs e)//停止
        {
            timer1.Enabled = false;
            toolStripProgressBar1.Value = 0;
            textBox2.Text = "";
            textBox1.Text = "";
            button1.Enabled = false;
            button2.Enabled = false;
            button3.Enabled = false;

        }

        private void timer1_Tick(object sender, EventArgs e)
        {
            if (toolStripProgressBar1.Value < toolStripProgressBar1.Maximum)//如果进度条当前的值小于进度条最大的值
            {
                toolStripProgressBar1.Value++;//就把进度条的当前值++
                textBox2.AppendText(DateTime.Now.ToString("HH:mm:ss") + "当前进度为[" + toolStripProgressBar1.Value + "/" + toolStripProgressBar1.Maximum + "]...." + "
");//拼接字符串

            }
            else
            {
                textBox2.Text = "";
            }
        }

        private void button4_Click(object sender, EventArgs e)
        {
            this.Close();
        }
    }
}