Windows Show Desktop causes WinForms elements to stop updating (2)-CodePudding

Is there a simple way to have elements on a form keep updating even after I click on Windows Show Desktop? The following code updates the value in textBox1 until I click on Windows Show Desktop (Windows 10 - click on the bottom right of the screen). I prefer not to use Application.DoEvents()

    private async void Button1Click(object sender, EventArgs e)
    {
        int n = 0;
        while (true) {
            Task<int> task = Increment(n);
            var result = await task;
            n = task.Result;
            textBox1.Text = n.ToString();
            textBox1.Refresh();
            Update();
            // await Task.Delay(200);
        }
    }
    
    public async Task<int> Increment(int num)
    {
        return   num;
    }

CodePudding user response：

One way to solve this problem is to offload the CPU-bound work to a ThreadPool thread, by using the Task.Run method:

private async void Button1Click(object sender, EventArgs e)
{
    int n = 0;
    while (true)
    {
        n = await Task.Run(() => Increment(n));
        textBox1.Text = n.ToString();
    }
}

This solution assumes that the Increment method does not interact with UI components internally in any way. If you do need to interact with the UI, then the above approach is not an option.