---
title: ValidationFailure
summary: API reference for ValidationFailure.
status: draft
owner: saif-docgen
last_reviewed: 2026-09-15
library: SAIF.Framework.Common
reference_type: package
---

# ValidationFailure

Implementation of `IValidationFailure` describing one field-level validation error: which property failed, the attempted value, and the message to surface.

## Purpose
- Implementation of `IValidationFailure` describing one field-level validation error: which property failed, the attempted value, and the message to surface.

## Context
- Namespace: `SAIF.Common`
- Assembly/package: `SAIF.Framework.Common`

## Public members
| Member | Signature | Purpose |
| --- | --- | --- |
| AttemptedValue | `public object AttemptedValue { get; set; }` | The value that failed validation. |
| ErrorMessage | `public string ErrorMessage { get; set; }` | Human-readable description of the failure. |
| PropertyName | `public string PropertyName { get; set; }` | The name of the property/field that failed. |
| ValidationFailure() | `public ValidationFailure()` | Parameterless constructor for property-initializer style construction. |
| ValidationFailure(string propertyName, string errorMessage, object attemptedValue) | `public ValidationFailure(string propertyName, string errorMessage, object attemptedValue)` | Constructs a fully-populated failure in one call. |


## Sources
- `Common/SAIF.Common/Classes/ValidationFailure.cs`