---
title: SAIFMenu.ContextChangedEventHandler
summary: API reference for SAIFMenu.ContextChangedEventHandler.
status: draft
owner: SAIF documentation team
last_reviewed: 2026-08-17
library: SAIF.Presentation.Web.Controls.V2.Menu
reference_type: package
---

# SAIFMenu.ContextChangedEventHandler

`SAIFMenu.ContextChangedEventHandler` is the nested delegate signature for `SAIFMenu`'s `OnContextChanged` event, letting host pages react whenever the context-value text box's content changes and access both the previous and new values in one handler call.

## Purpose
- Defines the callback shape `(OldContext, NewContext)` that host pages implement to detect and react to changes in the context-value text box (e.g., a claim number field) without polling `ContextValue` themselves.

## Context
- Namespace: `SAIF.Presentation.Web.Controls.V2.Menu` (nested within `SAIFMenu`)
- Assembly/package: `SAIF.Presentation.Web.Controls.V2.Menu` (packaged within `SAIF.BOF.Presentation.Web.Infragistics103`)

## Public members
| Member | Signature | Purpose |
| --- | --- | --- |
| `Invoke` | `Delegate Sub ContextChangedEventHandler(OldContext As String, NewContext As String)` | Defines the handler signature raised by `SAIFMenu.OnContextChanged`, supplying both the previous and updated context-box values to the subscriber. |

## Behavioral notes
- Raised by `SAIFMenu` when the context-value text box's value changes, distinct from `MenuNavigate` (which fires on Enter-to-postback navigation from the same field)*.

## Constraints and usage notes
- Host pages subscribe to `SAIFMenu.OnContextChanged` using this delegate signature to receive both old and new context values in a single event.

> **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.Presentation.Web.Controls.V2.Menu\SAIFMenu.vb`