C#一个显示进度条的类及当前线程或多线程调用示例

朱雀 2023-06-25 08:11 19阅读 0赞

## C\#一个显示进度条的类及当前线程或多线程调用示例 ##

进度条类：

class ShowProgress
        {
            Form pf;
            ProgressBar pb;
            Label lbl;
            public static Thread thread;
            public ShowProgress(bool isCircle)
            {
                if (isCircle)
                {
                    pf = new Form();
                    pf.ControlBox = false;
                    pf.ShowInTaskbar = false;
                    pf.TopMost = true;
                    pf.FormBorderStyle = FormBorderStyle.None;
                    pf.Size = new Size(600, 100);
                    pb = new ProgressBar();
                    Control.CheckForIllegalCrossThreadCalls = false;
                    pb.Style = ProgressBarStyle.Marquee;
                    pf.Controls.Add(pb);
                    pf.Padding = new Padding(5);
                    pb.Dock = DockStyle.Fill;
                    
                    pf.StartPosition = FormStartPosition.CenterScreen;
                    pf.Show();
                }
                else
                {
                    pf = new Form();
                    pf.ControlBox = false;
                    pf.ShowInTaskbar = false;
                    pf.TopMost = true;
                    pf.FormBorderStyle = FormBorderStyle.None;
                    pf.Size = new Size(600, 100);
                    pb = new ProgressBar();
                    pb.Step = 1;
                    pb.Maximum = 100;
                    pb.Minimum = 1;                
                    pf.Padding = new Padding(5);
                    //pb.Dock = DockStyle.Fill;
                    pb.Size = new Size(600, 80);
                    lbl = new Label();
                    lbl.TextAlign = ContentAlignment.MiddleCenter;
                    lbl.AutoSize = false;
                    lbl.Size = new Size(600, 20);   
                    lbl.ForeColor = Color.Blue;
                    lbl.Font = new Font("宋体", 12);
                    lbl.Location = new Point(0 ,80 );
                    pf.Controls.Add(lbl);
                    pf.Controls.Add(pb);
                    pf.StartPosition = FormStartPosition.CenterScreen;
                    pf.Show();
                    //pb.Value = 50;
                }
            }
            public static void run(object sp)
            {
                Random r = new Random();
                ShowProgress spp = sp as ShowProgress;
                while (true)
                {
                    spp.set(r.Next(100));
                    Thread.Sleep(100);
                }
            }
            public static void show_circle_dialog()
            {
                if (thread != null && thread.IsAlive)
                {
                    MessageBox.Show("已经打开了一个进度，现在立即将其退出");
                    try
                    {
                        thread.Abort();
                    }
                    catch { }
                    finally
                    {
                        thread = null;
                    }
                }
                ThreadStart ts = new ThreadStart(ShowProgress.show);
                thread = new Thread(ts);
                thread.Start();
                Thread.Sleep(200);
            }
            public static void close_circle_dialog()
            {
                if (thread != null)
                {
                    try
                    {
                        thread.Abort();
                    }
                    catch { }
                    finally
                    {
                        thread = null;
                    }
                }
            }
            public static void show()
            {
                ShowProgress sp = new ShowProgress(true);
                run(sp);
            }
            public delegate void Set(int value);
            public delegate void deg_set();
            public void set(int value)
            {
                if (pb.InvokeRequired)
                {
                    Set set_deg = new Set(set);
                    pb.Invoke(set_deg, new object[] { value });
                }
                else
                {
                    try { pb.Value = value; }
                    catch { }
                }
            }
            public void set(int value,string pro)
            {
                if (pb.InvokeRequired)
                {
                    Set set_deg = new Set(set);
                    pb.Invoke(set_deg, new object[] { value });
                }
                else
                {
                    try { 
                        pb.Value = value;
                        lbl.Text = pro;
                    }
                    catch { }
                }
            }
            public void close()
            {
                if (pf.InvokeRequired)
                {
                    deg_set set_deg = new deg_set(close);
                    pf.Invoke(set_deg);
                }
                else
                {
                    pf.Close();
                    pf.Dispose();
                }
            }
        }

普通调用：

ShowProgress sp = new ShowProgress(false);      
    sp.set(10,"10%，完成加载【基本信息】");//完成加载基本信息
    Application.DoEvents();
    rules = api.get_packet_filter();
    init_list();
    sp.set(20,"20%，完成加载【规则】");//完成加载规则
    Application.DoEvents();

调用一个循环的进度条

ShowProgress.show_circle_dialog();
                for (int i = 1; i <= 100; i++)
                {
                    Thread.Sleep(100);                
                }
    ShowProgress.close_circle_dialog();