---
title: mdlExtensions
summary: API reference for mdlExtensions.
status: draft
owner: Claims Documentation Team
last_reviewed: 2026-07-27
library: SAIF.Business.Imaging
reference_type: package
---

# mdlExtensions

`mdlExtensions` is a VB.NET module that defines one extension method for `List(Of clsImageDocumentNameCode)`. It standardizes how UI-facing lists receive a leading blank document-name option.

## Purpose
- Adds a sentinel `clsImageDocumentNameCode` entry with code `BLANK` and a single-space description at index 0 of an existing list.

## Context
- Namespace: `SAIF.Business.Imaging`
- Assembly/package: `SAIF.BOF.Business.Imaging`

## Public members

| Member | Signature | Purpose |
| --- | --- | --- |
| `AddBlankOption` | `Public Sub AddBlankOption(ByRef values As List(Of clsImageDocumentNameCode))` | Extension method that prepends a `clsImageDocumentNameCode` whose `Code = "BLANK"` and `CodeDescr = " "`. |

## Behavioral notes
- The method creates the blank option with an object initializer and inserts it with `values.Insert(0, value)`.

## Constraints and usage notes
- Because the parameter is passed `ByRef`, callers hand the original list instance to the extension method and receive the inserted blank row in place.

## Sources
- `Business\SAIF.Business.Imaging\clsImageDocumentNameCode.vb`