Reason

No service of the family is registered under the requested name.

The named service exists but belongs to a family that cannot answer the request.

The requested role is not bound in the family.

The family has no explicit default, no eligible default candidate and no eligible service.

The family has no explicit default and several eligible candidates or services.

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Returns an array containing the constants of this enum type, in the order they're declared.