UniqueIndexViolationException Class

Definition

Namespace

Cuemon.Data

Assemblies

Cuemon.Data.dll

Source

src/Cuemon.Data/UniqueIndexViolationException.cs

The exception that is thrown when a unique index violation occurs from a data source.

public class UniqueIndexViolationException : Exception, ISerializable

Inheritance

object

Exception

UniqueIndexViolationException

Implements

ISerializable

Inherited Members

Exception.GetBaseException()

Exception.GetType()

Exception.ToString()

Exception.Data

Exception.HelpLink

Exception.HResult

Exception.InnerException

Exception.Message

Exception.Source

Exception.StackTrace

Exception.TargetSite

Exception.SerializeObjectState

Examples

UniqueIndexViolationException represents a unique index or constraint violation error, with support for inner exceptions and parameterless construction. This example throws a new instance with a descriptive message about a duplicate key in dbo.Users and catches it to print the message. It also creates a wrapped exception with an inner InvalidOperationException as the cause, and demonstrates that the default parameterless constructor has no inner exception.

using System;
using Cuemon.Data;

namespace MyApp.Data
{
    public sealed class UniqueIndexViolationExceptionExample
    {
        public void Demonstrate()
        {
            try
            {
                throw new UniqueIndexViolationException("Cannot insert duplicate key row in object 'dbo.Users'.");
            }
            catch (UniqueIndexViolationException ex)
            {
                Console.WriteLine(ex.Message);
            }

            var wrapped = new UniqueIndexViolationException(
                "Failed to register user.",
                new InvalidOperationException("IX_Users_Email was violated."));

            Console.WriteLine(wrapped.Message);
            Console.WriteLine(wrapped.InnerException?.Message);

            var empty = new UniqueIndexViolationException();
            Console.WriteLine($"Default exception has no inner exception: {empty.InnerException is null}");
        }
    }
}

Constructors

Name	Description
UniqueIndexViolationException()	Initializes a new instance of the UniqueIndexViolationException class.
UniqueIndexViolationException(string)	Initializes a new instance of the UniqueIndexViolationException class.
UniqueIndexViolationException(string, Exception)	Initializes a new instance of the UniqueIndexViolationException class.