private void toolStripButtonRemoveInvalid_Click(object sender, EventArgs e) { try { if (comboBoxPlatform.SelectedValue != null) { RomFunctions.RemoveInvalidRomsEntries(PlatformBusiness.Get(comboBoxPlatform.SelectedValue.ToString())); } else { RomFunctions.RemoveInvalidRomsEntries(); } FilterRoms(); } catch (OperationCanceledException ioex) { return; } catch (Exception ex) { FormCustomMessage.ShowError(ex.Message); } }