Populating a listview from another thread

Question

I\'m trying to populate a listview from another class, but I\'m geting this error: \" Cross-thread operation not valid: Control \'listView1\' accessed from a thread other than t

Answer 1

Usually I'm doing it like this:

using System;
using System.Windows.Forms;

namespace TestWinFormsThreding
{
    class TestFormControlHelper
    {
        delegate void UniversalVoidDelegate();

        /// 

        /// Call form control action from different thread
        /// 
        public static void ControlInvoke(Control control, Action function)
        {
            if (control.IsDisposed || control.Disposing)
                return;

            if (control.InvokeRequired)
            {
                control.Invoke(new UniversalVoidDelegate(() => ControlInvoke(control, function)));
                return;
            }
            function();
        }
    }

    public partial class TestMainForm : Form
    {
    // ...
    // This will be called from thread not the same as MainForm thread
    private void TestFunction()
    {
        TestFormCotrolHelper.ControlInvoke(listView1, () => listView1.Items.Add("Test"));
    }   
    //...
    }
}