采用

try{}catch (Exception e){throw;}

　不能捕捉到詳細異常提示, e.message的內容為"Validation failed for one or more entities. See 'EntityValidationErrors' property for more details."

如果需要獲取詳細的異常提示,采用

1 try 2 { 3 return base.SaveChanges(); 4 } 5 catch (DbEntityValidationException ex) 6 { 7 var errorMessages = ex.EntityValidationErrors 8 .SelectMany(x => x.ValidationErrors) 9 .Select(x => x.ErrorMessage); 10 11 var fullErrorMessage = string.Join("; ", errorMessages); 12 13 var exceptionMessage = string.Concat(ex.Message, " The validation errors are: ", fullErrorMessage); 14 15 throw new DbEntityValidationException(exceptionMessage, ex.EntityValidationErrors); 16 }

?鏈接:?http://stackoverflow.com/questions/15820505/dbentityvalidationexception-how-can-i-easily-tell-what-caused-the-error

轉載于:https://www.cnblogs.com/ygfnet/p/4248642.html

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