---
title: Add or clear SSRS report parameters
summary: Maintains the parameter set used on the next SSRS report render.
status: draft
owner: SAIF Case Management
last_reviewed: 2026-08-21
library: SAIF.Services.Printing
reference_type: embedded
operation_id: OP-RSPRINT-PARAMS
trigger: Caller invokes clsRSPrint.AddParameter or clsRSPrint.ClearParameters
---

# Add or clear SSRS report parameters

Maintains the internal name/value collection of SSRS report parameters that will be applied on the next [Render an SSRS report](render-ssrs-report.md) call.

| Field | Value |
| --- | --- |
| **Operation ID** | OP-RSPRINT-PARAMS |
| **Trigger** | Caller invokes `clsRSPrint.AddParameter(name, value)` or `clsRSPrint.ClearParameters()` |
| **Inputs** | Parameter `name`/`value` (for `AddParameter`) |
| **Outputs** | Updated internal `NameValueCollection` |
| **Primary components** | `clsRSPrint.AddParameter`, `clsRSPrint.ClearParameters` |
| **Entry point** | `SAIF.Services.Printing\clsRSPrint.vb` |

## Steps

1. `AddParameter` adds a name/value pair to the internal `NameValueCollection` used to build SSRS execution parameters on the next [Render an SSRS report](render-ssrs-report.md) call.
2. `ClearParameters` clears that collection.

## Process flow

```mermaid
flowchart TD
	Start([AddParameter or ClearParameters called]) --> Decision{Which method?}
	Decision -->|AddParameter| Add[Add name/value to NameValueCollection]
	Decision -->|ClearParameters| Clear[Clear NameValueCollection]
	Add --> End([Used by next PreviewDocument call])
	Clear --> End
```

## Failure and edge-case behavior
- No validation of parameter name/value pairs occurs at this stage; unrecognized parameter names would only surface as an error from the SSRS `SetExecutionParameters` call in [Render an SSRS report](render-ssrs-report.md).*

## Related documentation
- [Operations and processes](../operations-processes.md)
- [Business rules](../business-rules.md)

## Sources
- `SAIF.Services.Printing\clsRSPrint.vb`