---
title: Change policy context
summary: How a user switches the policy in context on the NDReimbursement screen.
status: generated
owner: SAIF Case Management
last_reviewed: 2026-10-20
---

# Change policy context

## Steps

1. The user picks a policy or statement in the layout, which posts to the reload-context, policy-number or statement handler. External updaters do not see the control ([BR-APP-004](../business-rules.md#br-app-004)); the server does not enforce this.
2. The inherited page model re-resolves the web context ([INH-001](../business-rules.md#inh-001)) † and refreshes the policy header, reusing a session header only on a policy match ([INH-006](../business-rules.md#inh-006)) †.
3. External users see only associated policies, and the dropdown is ordered ([INH-005](../business-rules.md#inh-005), [INH-007](../business-rules.md#inh-007)) †. Remote failures fall back to defaults ([INH-003](../business-rules.md#inh-003)) †.
4. `OnPostReloadContext` sets the context policy number and calls `SaveContext()`, which saves the context to the `BolContext` cookie ([INH-008](../business-rules.md#inh-008)) †, before calling `OnPost()`.
5. `OnPost()` reaches `OnPostPolicyNumber`, which runs `PopulateModel` with the user checks ([BR-APP-002](../business-rules.md#br-app-002), [BR-APP-003](../business-rules.md#br-app-003)).
6. The screen is rendered for the new policy as in [Load screen](load-screen.md).

## Process flow

The diagram shows the order of steps when the reload-context handler saves the `BolContext` cookie before it repopulates the model.

```mermaid
flowchart TD
    A["Select policy"] --> B["POST ReloadContext"]
    B --> C["Set context policy number"]
    C --> D["SaveContext: BolContext cookie †"]
    D --> E["OnPost then OnPostPolicyNumber"]
    E --> F["PopulateModel"]
    F --> G["Render screen"]
```

> **Note:** Statements marked with `†` are derived from dependency library
> documentation via the Legends CLI. They describe inherited behavior from the indicated
> origin library and should be verified if the dependency version changes.

## Related documentation
- [Application index](../index.md)
- [Operations and processes](../operations-processes.md)
- [Business rules](../business-rules.md)
- [Security and authorization](../security-authorization.md)

## Sources
- src/NDReimbursementWebApp/Pages/NDReimbursement.cshtml.cs
- src/NDReimbursementWebApp/Pages/NDReimbursement.cshtml