REFRESH A LISTBOX TO DISPLAY NEW VALUES

Total Post:149

Points:1043
C# 
C#
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Hi Guys

I'm filling out my text box with values Im grabbing on line and passing them to the listbox like so:

        // textBox1.Text = test.ToString();
        string[] names = result.Split('|');
        foreach (string name in names)
        {
            listBox1.Items.Add(name);
        }

However I'm trying to click on a folder and have the files displayed from there be shown in my listbox1. THis is what I've tried:

   using (var testy = new WebClient())
        {
            test = testy.DownloadString("http://server.foo.com/images/getDirectoryList.php?dir=test_folder");
            string[] names1 = test.Split('|');
            foreach (string name in names1)
            {
                listBox1.Items.Clear();
                listBox1.Items.Add(name);
                listBox1.Update();
            }
        }

But all that happens is that my listbox empties and doesn't get refreshed.

  1. Post:378

    Points:2694
    Re: Refresh a listbox to display new values

    Hi Royce,


    Use a BindingSource

    BindingSource bs = new BindingSource();
    List<string> names1 = new List();
    bs.DataSource = names1;
    comboBox.DataSource = bs;
       using (var testy = new WebClient())
        {
            test = testy.DownloadString("http://server.foo.com/images/getDirectoryList.php?dir=test_folder");
            names1.AddRange(test.Split('|'));
            bs.ResetBindings(false);
        }

    The BindingSource will take care of everything for you.

      Modified On Mar-31-2018 12:59:33 AM

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