---
title: clsRulesManagerBase
summary: API reference for clsRulesManagerBase.
status: draft
owner: <owner>
last_reviewed: 2026-07-23
library: SAIF.Framework.Bindable
reference_type: package
---

# clsRulesManagerBase

`clsRulesManagerBase` is an abstract base class that exposes `RuleBroken`/`RuleNotBroken` events, implementing a business-rule-violation notification pattern for subclasses elsewhere in the SAIF BOF stack.

## Purpose
- Provide a reusable rule-violation notification mechanism (`RuleBroken`/`RuleNotBroken` events) for business object subclasses; contains no concrete rule evaluation or validation logic itself.

## Context
- Namespace: `SAIF.Framework`
- Assembly/package: `SAIF.BOF.Framework.Bindable.csproj` (packed into the `SAIF.BOF.Framework` NuGet package)*

## Public members
| Member | Signature | Purpose |
| --- | --- | --- |
| `RuleBroken` | `event RuleEvent RuleBroken` | Serialization-safe (`[NonSerialized]`) event raised when a subclass reports a business rule has been broken. |
| `RuleNotBroken` | `event RuleEvent RuleNotBroken` | Serialization-safe (`[NonSerialized]`) event raised when a subclass reports a previously-broken business rule is resolved. |

## Behavioral notes
- The protected `OnRuleBroken(object rule)` and `OnRuleNotBroken(object rule)` methods invoke their respective event delegates directly (`RuleBroken(rule)`, `RuleNotBroken(rule)`) with no null-check guard, so calling either method with zero subscribers throws a `NullReferenceException` at runtime.* This is the mechanism documented in [BR-001](../../business-rules.md#br-001-rule-violation-notification-requires-a-subscribed-listener).
- This contrasts with the guarded pattern used in `clsBindableBase.OnIsModifiedChanged()`, which checks `if (IsModifiedChanged != null)` before raising its event.
- No consumers of this class exist within this library's own source; actual subclassing usage is outside this library's scope and unverified.**

## Constraints and usage notes
- Consumers must ensure a subscriber is always attached to `RuleBroken`/`RuleNotBroken` before a subclass calls `OnRuleBroken`/`OnRuleNotBroken`, or an unhandled `NullReferenceException` will be thrown. See [BR-001](../../business-rules.md#br-001-rule-violation-notification-requires-a-subscribed-listener).
- The `RuleBroken` and `RuleNotBroken` events are marked `[NonSerialized]`, so they are excluded from binary/XML serialization of the subclass instance.

> **Note:** Statements marked with * were inferred from code structure, naming conventions, or
> contextual evidence where direct confirmation was not available in source artifacts. Statements
> marked with ** could not be confirmed; treat as unknown until verified.

## Sources
- `SAIF.Framework.Bindable\clsrulesmanagerbase.cs`