GUI/进度条未从后台工作人员更新

我一直在尝试完成这项工作，但它不会更新 GUI 上的任何内容，并且我的应用程序存在于我在代码中显示的错误上。

    ListViewItem item;
    public void SetStatusStrip()
    {
        BackgroundWorker bw = new BackgroundWorker();
        bw.WorkerReportsProgress = true;
        listviewTables.Columns.Add(gDatabase);
        bw.DoWork += new DoWorkEventHandler(
        delegate(object o, DoWorkEventArgs args)
        {
            BackgroundWorker b = o as BackgroundWorker;
            try
            {
                MySqlCommand iCommand = new MySqlCommand("SHOW TABLES;", iCon);
                iRead = iCommand.ExecuteReader();
                int i = 0;
                while (iRead.Read())
                {
                    item = new ListViewItem(new[] { iRead.GetString(0) });
                    bw.ReportProgress(i);
                    i++;
                }
            }
            catch (MySqlException ex)
            {
                MessageBox.Show("There was an error getting tables from the database: " + gDatabase + ".'n'nError Dump:'n" + ex, "MySQL Error!");
                return;
            }
        });
        bw.ProgressChanged += new ProgressChangedEventHandler(
        delegate(object o, ProgressChangedEventArgs args)
        {
            progressBar1.Value = args.ProgressPercentage;
            listviewTables.Items.Add(item); // I get error here: System.ArgumentException
        });
        bw.RunWorkerCompleted += new RunWorkerCompletedEventHandler(
        delegate(object o, RunWorkerCompletedEventArgs args)
        {
            progressBar1.Value = 0;
            // Finished.
        });
        bw.RunWorkerAsync();
    }