使用Winform空間編寫簡單的進度條小程序：

? ? ?? ? 所需控件：Lable 標簽? TextBox? 文本框? progressBar? 進度條控件? timer 定時器

? ? ? ? ? 下面是源碼及效果圖：

 1  /// 

 2         /// 進度條開始
 3         /// 
 4         /// 
 5         /// 
 6         private void btnBegin_Click(object sender, EventArgs e)
 7         {
 8             if (txtLenght.Text == "")
 9             {
10                 return;
11             }
12             progressBar1.Value = 0;
13             progressBar1.Minimum = 0;
14             progressBar1.Maximum = Convert.ToInt32(txtLenght.Text);
15             output("進度條開始運行");
16             timer1.Enabled = true;
17         }
18 
19         private void Form1_Load(object sender, EventArgs e)
20         {
21 
22         }
23 
24         /// 

25         /// 停止按鈕
26         /// 
27         /// 
28         /// 
29         private void btnStop_Click_1(object sender, EventArgs e)
30         {
31             output("進度條停止運行");
32             timer1.Enabled = false;
33             progressBar1.Value = 0;
34         }
35 
36         /// 

37         /// 日志記錄
38         /// 
39         /// 
40         public void output(string log)
41         {
42             //如果日志信息長度超過100行自動清空
43             if (txtJournal.GetLineFromCharIndex(txtJournal.Text.Length) > 150)
44             {
45                 txtJournal.Text = "";
46             }
47             //添加日志  AppendText向文本框的當前文本追加文本
48             txtJournal.AppendText(DateTime.Now.ToString("yyyy-mm-dd hh:mm:ss") + log + "\r\n");
49         }
50 
51         /// 

52         /// 暫停按鈕
53         /// 
54         /// 
55         /// 
56         private void btnSuspend_Click(object sender, EventArgs e)
57         {
58             if (timer1.Enabled == true)
59             {
60                 output("進度條暫停運行");
61                 btnSuspend.Text = "繼續";
62                 timer1.Enabled = false;
63             }
64             else
65             {
66                 output("進度條繼續運行");
67                 btnSuspend.Text = "暫停";
68                 timer1.Enabled = true;
69             }
70         }
71 
72         /// 

73         /// 定時器
74         /// 
75         /// 
76         /// 
77         private void timer1_Tick(object sender, EventArgs e)
78         {
79             //如果進度條的當前值小于最大值，繼續運行 否則，結束
80             if (progressBar1.Value  progressBar1.Maximum)
81             {
82                 progressBar1.Value++;
83                 output("進度條進行中,{" + progressBar1.Value.ToString() + " / " + progressBar1.Maximum + "}");
84             }
85             else
86             {
87                 output("進度條已完成");
88                 timer1.Enabled = false;
89             }
90         }

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? ? ? ?效果圖展示:

? ? ? ?

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