wpf使用进度条，趣味学习

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace 进度条Again
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
button1.Enabled = false;
button2.Enabled = false;
button3.Enabled = false;
}
private bool isok=true;
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
{
if (button2.Text == "暂停")
{
timer1.Enabled = false;
button2.Text = "继续";
textBox2.AppendText(DateTime.Now.ToString("HH:mm:ss") + "进度暂停" + "\r\n");
}
else
{
timer1.Enabled = true;
button2.Text = "暂停";
textBox2.AppendText(DateTime.Now.ToString("HH:mm:ss") + "进度继续" + "\r\n");
}

}

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 + "]...." + "\r\n");//拼接字符串

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

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

private void Form1_Load(object sender, EventArgs e)
{

}
}
}