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POUpdating a progress bar in a C# GUI from another thread and class
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  1. POUpdating a progress bar in a C# GUI from another thread and class
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    copied!<blockquote> <p><strong>Possible Duplicate:</strong><br> <a href="https://stackoverflow.com/questions/924108/updating-a-progress-bar-from-another-thread">Updating a Progress Bar from Another Thread</a> </p> </blockquote> <p>In my program, I wanted to separate non-GUI functions to another class, and leave things related to the GUI in the main class. However, I am having issues with updating a progress bar while one of the worker methods in the worker class is doing its job. I know that I will have to work with multithreading here, but I do not understand how. I may just be missing simple things, but when I look for information about it, it seems that most tutorials talk about the minutia, but do not explain the big picture very well. I partially understand what invoke and delegate commands are, but I don't really understand how they interact.</p> <p>Below is stripped down version of what I want to do. How do I modify this to update the progress bar, but keep the window responsive and repainting?</p> <p>Main form class:</p> <pre><code>public partial class Form1 : Form { time_waster thing = new time_waster(); public Form1() { InitializeComponent(); progressBar1.Minimum = 0; progressBar1.Maximum = 100; } private void button1_Click(object sender, EventArgs e) { thing.something_that_takes_a_while(); } } </code></pre> <p>Separate worker class: class time_waster { public time_waster() { }</p> <pre><code> public void something_that_takes_a_while() { int delay = 200; for (int i = 0; i &lt; 100; i++) { Thread.Sleep(delay); //appropriate code to update the progress bar for each iteration of the for loop. } } } </code></pre>
 

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