public int SaveChanges()
{
int affectedRow = 0;
try
{
if (_context == null)
{
throw new ArgumentNullException("_context");
}
affectedRow = _context.SaveChanges();
}
catch (DbEntityValidationException dbEx)
{
var msg = string.Empty;
foreach (var validationErrors in dbEx.EntityValidationErrors)
{
foreach (var validationError in validationErrors.ValidationErrors)
{
msg += string.Format("Property: {0} Error: {1}", validationError.PropertyName, validationError.ErrorMessage) + Environment.NewLine;
}
}
var fail = new Exception(msg, dbEx);
throw fail;
}
return(affectedRow);
}