---
title: InterestdParyExtensions
summary: API reference for InterestdParyExtensions.
status: draft
owner: Technical Writer
last_reviewed: 2026-07-31
library: SAIF.Business.Policy.Affiliate
reference_type: package
---

# InterestdParyExtensions

Extension module that derives the in-force interested-party subset for an as-of date from an in-memory sequence.

## Purpose
- Provide an `Active` filter for interested-party collections without re-querying the database.

## Context
- Namespace: `SAIF.Business.Policy.Affiliate`
- Assembly/package: `SAIF.Business.Policy.Affiliate`

## Public members
| Member | Signature | Purpose |
| --- | --- | --- |
| Active | `Public Function Active(ByVal target As IEnumerable(Of clsInterestedParty), ByVal inAsofDate As Date) As IEnumerable(Of clsInterestedParty)` | Filters an interested-party sequence to the items active on the supplied date. |

## Behavioral notes
- Related operations, rules, and SQL are cross-referenced from the library-level documentation.

## Constraints and usage notes
- The library exposes read-only retrieval behavior; no type in this package can persist changes through live criteria SQL.

## Sources
- `Business\SAIF.Business.Policy.Affiliate\clsInterestedPartyCollection.vb`