private void OnRegisterCommand(object parameters) { var values = (object[])parameters; TextBox txtwrap = values[0] as TextBox; StackPanel Stp = values[1] as StackPanel; var thisUser = DialogLogginViewModel.Users[0]; txtwrap.Text = StandardWord(txtwrap.Text); string[] ListLine = txtwrap.Text.Split(' ', ',', '-', '+', '\n'); InsertAndFindingError(ListLine, Stp); ListRegistered = new ObservableCollection <GetInfoRegistered_Result>(ST.GetInfoRegistered(thisUser.ID).ToList()); }