private void Save()
{
Messages.Clear();
contactDBContext dc = new contactDBContext();
try
{
//============================================
//http://patrickdesjardins.com/blog/entity-framework-ef-modifying-an-instance-that-is-already-in-the-context
// you have to detach the local version and set to modify the entity you are modifying
//we first verify if the entity is present inside the DbSet. If it is NOT null, than we detach the local entity.
//This scenario is pretty common if you receive the object from a web request and you want to save the entity.
var local = dc.Set <T003TelephoneContact>()
.Local
.FirstOrDefault(s => s.T003Pk == ContactRecord.T003Pk);
if (local != null)
{
dc.Entry(local).State = EntityState.Detached;
}
//=============================================
// Either Update or Insert child
if (PageMode == PageConstants.EDIT)
{
dc.Entry(ContactRecord).State = EntityState.Modified;
//by setting the state, then the 'SaveChanges' is able to save it's changes
dc.SaveChanges();
LogTheAction(eNums.eReadUpdateCreateDelete.Update);
}
else if (PageMode == PageConstants.ADD)
{
dc.T003TelephoneContact.Add(ContactRecord);
dc.SaveChanges();
LogTheAction(eNums.eReadUpdateCreateDelete.Create);
}
// Get all the data again in case anything changed
Get();
}
catch (DbEntityValidationException ex)
{
IsValid = false;
// Validation errors
foreach (var errors in ex.EntityValidationErrors)
{
foreach (var item in errors.ValidationErrors)
{
Messages.AddModelError(item.PropertyName, item.ErrorMessage);
}
}
}
// Set page state
SetUIState(PageMode);
}
