What is DbEntityValidationException?
DbEntityValidationException is the exception thrown by Entity Framework when entity validation fails. While this exception is extremely valuable, the exception message omits the most important bit of information: The actual validation errors.
What is EntityValidationErrors?
EntityValidationErrors is a collection which represents the entities which couldn’t be validated successfully, and the inner collection ValidationErrors per entity is a list of errors on property level. These validation messages are usually helpful enough to find the source of the problem.
How do I get DbEntityValidationException?
The easiest solution is to override SaveChanges on your entities class. You can catch the DbEntityValidationException , unwrap the actual errors and create a new DbEntityValidationException with the improved message. Create a partial class next to your SomethingSomething. Context.
What is Dbupdateexception?
Exception thrown by DbContext when the saving of changes to the database fails. Note that state entries referenced by this exception are not serialized due to security and accesses to the state entries after serialization will return null.
How to catch the dbentityvalidationexception in CS?
You can catch the DbEntityValidationException, unwrap the actual errors and create a new DbEntityValidationException with the improved message. Create a partial class next to your SomethingSomething.Context.cs file.
What does dbentityvalidationexception mean in Entity Framework?
System.Data.Entity.Validation.DbEntityValidationException: Validation failed for one or more entities. See ‘EntityValidationErrors’ property for more details. The validation errors are: The field PhoneNumber must be a string or array type with a maximum length of ’12’; The LastName field is required.
What does DynamoDB return when an HTTP request is unsuccessful?
If the request is successful, DynamoDB returns an HTTP success status code (200 OK), along with the results from the requested operation. If the request is unsuccessful, DynamoDB returns an error. Each error has three components: An HTTP status code (such as 400). An exception name (such as ResourceNotFoundException).
What does the ” conditional request failed ” message mean?
Message: The conditional request failed. You specified a condition that evaluated to false. For example, you might have tried to perform a conditional update on an item, but the actual value of the attribute did not match the expected value in the condition. OK to retry?