public void MaterialsCommand_Executed(object sender) { if (!AppProperties.FormHaveModifications || DiscardFormModifications()) { AppProperties.FormHaveModifications = false; SelfInvoiceButtonStyle = Application.Current.Resources["MainMenuButtonStyle"] as Style; InvoiceButtonStyle = Application.Current.Resources["InvoiceMenuButtonStyle"] as Style; CashButtonStyle = Application.Current.Resources["CashMenuButtonStyle"] as Style; MaterialsButtonStyle = Application.Current.Resources["SelectedMenuButtonStyle"] as Style; ClientsButtonStyle = Application.Current.Resources["ClientsMenuButtonStyle"] as Style; FirstInfo = "Materiali inseriti nel sistema:"; SecondInfo = _contoData.MaterialsCountGet().ToString(CultureInfo.InvariantCulture); SelectedControl = new MaterialsUserControl(); } }