在表格上显示时钟 [英] Display clock on Form

问题描述

我想在Windows窗体的面板中显示时钟（每秒更新的数字时钟）。我写下面的代码。

I want to display clock (digital clock which update in every second) in panel on windows form. I write following code.

Panel agentPanel;
      Label lblTime;
      Timer timer1;
  private void CreateAgentPanels(int numberofPanel, string Current_Status, string Op_id)
     {
         for(int i =0; i <= numberofPanel;i++)
          {
            agentPanel = new Panel();

            lblTime = new Label();
            lblTime.Location = new Point(02, 35);
            lblTime.AutoSize = true;

            timer1 = new Timer();
            timer1.Tick += new EventHandler(timer1_Tick);
            this.timer1.Interval = 1000;
            timer1.Start()

             agentPanel.Controls.Add(lblTime);
         }
   }

 private void timer1_Tick(object sender, EventArgs e)
   {
       lblTime.Text = DateTime.Now.ToString(HH:mm:ss);
   }

但lblTime标签仅显示在最后一个循环面板中。如何在循环中创建的每个面板中显示。



先谢谢

but lblTime label displays only in the last panel of loop. how to display in every panel which created in the loop.

Thanks in Advance

推荐答案

尝试一下像这样：

Try something like this:

List<Label> listOfLabels = new List<Label>();

private void CreateAgentPanels(int numberofPanel, string Current_Status, string Op_id)
        {
            Panel agentPanel;
            Label lblTime;
            for(int i =0; i <= numberofPanel;i++)
            {
                
                
                agentPanel = new Panel();
                agentPanel.BackColor = Color.Blue;
                agentPanel.AutoSize = true;
                agentPanel.Size = new Size(50, 50);
                agentPanel.Location = new Point((i * 52), 0);
                
                
                 
                lblTime = new Label();
                lblTime.Location = new Point(02, 35);
                lblTime.AutoSize = true;
                 
                

                listOfLabels.Add(lblTime);
             
                agentPanel.Controls.Add(lblTime);
                this.Controls.Add(agentPanel);
            }

            Timer timer1;
            timer1 = new Timer();
            timer1.Tick += new EventHandler(timer1_Tick);
            timer1.Interval = 1000;
            timer1.Start();
        }

        private void timer1_Tick(object sender, EventArgs e)
        {
            foreach (Label l in listOfLabels)
            {
                l.Text = DateTime.Now.ToString("HH:mm:ss");
            }
        }

在表单级别创建一个List，将lblTime添加到CreateAgentPanels中的列表，然后再添加到timer1_Tick方法中，遍历此列表并设置文本。

Create a List at the Form level, add the lblTime to the list in CreateAgentPanels and then in the timer1_Tick method, loop through this list and set it's text.

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