How to add a timer to a dynamic created labels in a winform C#?

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i have a small app that creates dynamically a panels that include ( table layout panel where there is a list box and a label in this table) the question is how i m gonna assign a timer in that label for every panel created? and also how i m gonna start the timer from 00:00? here is the code:

C#

public Form1()
        {
           
           InitializeComponent();

               p = new Panel();
               p.Size = new System.Drawing.Size(360, 500);
               p.BorderStyle = BorderStyle.FixedSingle;
               p.Name = "panel";

               tpanel = new TableLayoutPanel();
               tpanel.Name = "tablepanel";

               ListBox lb = new ListBox();
               tpanel.Controls.Add(lb = new ListBox() { Text = "qtylistBox2" }, 1, 3);
                       
               Label l6 = new Label();
               tpanel.Controls.Add(l6 = new Label() { Text = "0" }, 2, 1)
//here is the timer that i created
               timer1.Interval = 1000;
               timer1.Tick += new EventHandler(timer1_Tick);
               timer1.Enabled = true;

public void timer1_Tick(object sender, EventArgs e)
        {
             l6.Text = DateTime.Now.ToString("mm\\:ss");

        }

What I have tried:

i have tried this code but only adds the timer to the last label in the last panel created.

Posted 30-Sep-19 2:05am

Member 14106991

Updated 1-Oct-19 4:50am

Sheepings

v2

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ZurdoDev 30-Sep-19 8:12am

Same way you are creating dynamic labels, create dynamic timers.

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OriginalGriff · Accepted Answer · 2019-09-30T04:14:00

The way I'd do it is to create a single timer, and add your labels to a collection that it can examine.
When your single timer gets a Tick event, it checks the collection for each label instead of needing a a separate timer for each one. If the label needs specific timeout period, set the end time into the Label.Tag property as a DateTime, and compare it to DateTime.Now in the Tick handler.
That way, you can write a method which processes a tick for a single label, and call it repeatedly from the single Tick event passing the Label through as a parameter.