private void bbExportHistory_ItemClick(object sender, DevExpress.XtraBars.ItemClickEventArgs e)
        {
            XtraFolderBrowserDialog dialog = new XtraFolderBrowserDialog();

            if (dialog.ShowDialog() != DialogResult.OK)
            {
                return;
            }
            GridControl gc   = new GridControl();
            GridView    view = new GridView();

            gc.ViewCollection.Add(view);
            gc.MainView   = view;
            gc.DataSource = new BindingSource()
            {
                DataSource = typeof(DependencyArbitrageHistoryItem)
            };
            gc.BindingContext = new BindingContext();
            gc.ForceInitialize();
            view.PopulateColumns();
            ArbitrageHelper.Items.ForEach(i => i.SaveHistory());
            ArbitrageHelper.Items.ForEach(i => {
                StatisticalArbitrageStrategy info = new StatisticalArbitrageStrategy();
                info.Assign(i);
                info.LoadHistory();
                gc.DataSource = info.History;
                gc.ExportToXlsx(dialog.SelectedPath + "\\" + info.GetExportFileName() + ".xlsx");
            });
            System.Diagnostics.Process.Start(dialog.SelectedPath);
        }