Entity Framework發生『Validation failed for one or more entities. See 'EntityValidationErrors' property for more details』
catch (DbEntityValidationException ex) { var entityError = ex.EntityValidationErrors.SelectMany(x => x.ValidationErrors).Select(x => x.ErrorMessage); var getFullMessage = string .Join( "; " , entityError); var exceptionMessage = string .Concat(ex.Message, "errors are: " , getFullMessage); //NLog LogException( new Exception( string .Format( "File : {0} {1}." , logFile.FullName, exceptionMessage), ex)); }