一个进度条的简单的问题
做个最简单的TIMER控制的进度条，结果不动弹，帮忙看看哪里的问题？谢谢

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

namespace WindowsFormsApplication1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}

private void Form1_Load(object sender, EventArgs e)
{
progressBar1.Value = 0;
}

private void button1_Click(object sender, EventArgs e)
{
timer1.Interval = 100;
timer1.Enabled = true;
}
private void timer1_Tick(object sender, EventArgs e)
{
if (progressBar1.Value >= 100)
progressBar1.Value = 0;
else progressBar1.Value = progressBar1.Value + 10;

}
}
}

有这个的话就不用加那句话了