private async void DownloadButton_OnClick(object sender, RoutedEventArgs e)
        {
            try
            {
                if (FileLocationTextBox.Text == string.Empty)
                {
                    await
                        ((MetroWindow)Window.GetWindow(this)).ShowMessageAsync("Securities Import",
                                                                               "Please specify a file path.");
                    return;
                }
                bool success = await _viewModel.ImportSecurities();

                if (success)
                {
                    await
                        ((MetroWindow)Window.GetWindow(this)).ShowMessageAsync("Securities Import",
                                                                               "Import successful!");
                }
                else
                {
                    await
                        ((MetroWindow)Window.GetWindow(this)).ShowMessageAsync("Securities Import",
                                                                               "Importation failed.");
                }
            }
            catch (Exception exc)
            {
                await
                    ((MetroWindow)Window.GetWindow(this)).ShowMessageAsync("Securities Import", String.Format("Import Failed : {0}", exc.Message));
            }
        }