// command execution indicator methods:
protected virtual bool CanExecute_SaveRecordCommand()
{
bool condition1 = _records.Any(record => record.GetIdCode() == PresentedRecord.GetPresentedIdCode());
bool condition2 = PresentedRecord.IsSaveable();
return(!condition1 && condition2);
}
protected virtual bool CanExecute_UpdateCommand()
{
return(SelectedRecord != null && !PresentedRecord.IsEqualToSelectedRecord(SelectedRecord) && PresentedRecord.IsSaveable());
}