// 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);
}
// saves record to database:
protected virtual void SaveRecord()
{
try
{
_dataProvider.AddAsync(PresentedRecord.GetRecordFromPresentedRecord()).Wait();
RefreshKeysCollection();
}
catch (Exception e)
{
SendTabNotification(new TabNotificationSentEventArgs()
{
Message = e.Message
});
return;
}
}
protected virtual bool CanExecute_UpdateCommand()
{
return(SelectedRecord != null && !PresentedRecord.IsEqualToSelectedRecord(SelectedRecord) && PresentedRecord.IsSaveable());
}
// generates first unused id number to use in CRUD tab:
protected virtual void GenerateAvailableId()
{
PresentedRecord.SetPresentedIdCode(GenerateFirstAvailable4DigitCode());
RaisePropertyChangedEvent(nameof(PresentedRecord));
}
