Class ValidationError

Namespace

REslava.Result

Assembly

REslava.Result.dll

Represents a validation error (HTTP 400/422 equivalent). Use when input data fails validation rules.

public class ValidationError : Reason<ValidationError>, IReasonMetadata, IError, IReason, IErrorFactory<ValidationError>

Inheritance

object

Reason

Reason<ValidationError>

ValidationError

Implements

IReasonMetadata

IError

IReason

IErrorFactory<ValidationError>

Inherited Members

Reason<ValidationError>.WithMessage(string)

Reason<ValidationError>.WithTag(string, object)

Reason<ValidationError>.WithTag<T>(TagKey<T>, T)

Reason<ValidationError>.WithTags(params (string key, object value)[])

Reason<ValidationError>.WithTagsFrom(ImmutableDictionary<string, object>)

Reason<ValidationError>.WithMetadata(ReasonMetadata)

Reason.Message

Reason.Tags

Reason.Metadata

Reason.ToString()

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

Extension Methods

ReasonMetadataExtensions.HasCallerInfo(IReason)

ReasonMetadataExtensions.TryGetMetadata(IReason)

ReasonTagExtensions.Has<T>(IReason, TagKey<T>)

ReasonTagExtensions.TryGet<T>(IReason, TagKey<T>, out T?)

TagAccessExtensions.FormatTags(IReason, string)

TagAccessExtensions.GetTagBool(IReason, string, bool)

TagAccessExtensions.GetTagDecimal(IReason, string, decimal)

TagAccessExtensions.GetTagInt(IReason, string, int)

TagAccessExtensions.GetTagKeys(IReason)

TagAccessExtensions.GetTagString(IReason, string, string)

TagAccessExtensions.GetTag<T>(IReason, string, T?)

TagAccessExtensions.GetTags(IReason)

TagAccessExtensions.HasTag(IReason, string)

TagAccessExtensions.RequireTag<T>(IReason, string)

ValidationExtensions.EnsureNotNull<TCollection>(TCollection?, string, string?)

Examples

Result<User>.Fail(ValidationError.Field("Email", "Invalid email format"));
Result<User>.Fail(new ValidationError("Name is required"));

Constructors

ValidationError(string, string)

[Obsolete("Use ValidationError.Field(fieldName, message) for field-specific validation errors. This constructor will be removed in a future version.")]
public ValidationError(string fieldName, string message)

Parameters

fieldName string

message string

ValidationError(string, string?, string?, int)

public ValidationError(string message, string? callerMember = null, string? callerFile = null, int callerLine = 0)

Parameters

message string

callerMember string

callerFile string

callerLine int

Properties

FieldName

public string? FieldName { get; }

Property Value

string

Methods

Create(string)

Creates an instance of ValidationError with the given message.

public static ValidationError Create(string message)

Parameters

message string

Returns

ValidationError

CreateNew(string, ImmutableDictionary<string, object>)

Factory method for creating new instances (maintains immutability). Must be implemented by derived classes.

protected override ValidationError CreateNew(string message, ImmutableDictionary<string, object> tags)

Parameters

message string

tags ImmutableDictionary<string, object>

Returns

ValidationError

Field(string, string, string?, string?, int)

Creates a validation error for a specific field, capturing the calling method name automatically.

public static ValidationError Field(string fieldName, string message, string? callerMember = null, string? callerFile = null, int callerLine = 0)

Parameters

fieldName string

message string

callerMember string

callerFile string

callerLine int

Returns

ValidationError