---
id: object/codeunit/3035
type: object
title: Codeunit 3035 "DotNet_Buffer"
summary: Codeunit 3035 "DotNet_Buffer" in Base Application (System.Utilities). 4 public procedures. Present since at least BC23, still in BC30, changed in BC28.
tier: official
language: en
tags:
  - codeunit
  - base application
versions:
  introduced: null
  last_changed: "28"
  deprecated: null
review:
  state: derived
  by: null
  at: null
  flags: []
generated:
  at: "2026-10-11T00:31:51.816Z"
  pipeline: 0.2.0
  prompts: {}
  input_hash: d5652ef13534b2306d297066c19eebacc59a2a5d0ee5316634b8a8cf08473a95
evidence:
  - kind: code
    url: https://github.com/microsoft/BCApps/blob/ea08af5ef2d6a9b5c5af4a029288abbe2c883220/src/Layers/W1/BaseApp/Modules/System/DotNetWrappers/DotNetBuffer.Codeunit.al
    title: src/Layers/W1/BaseApp/Modules/System/DotNetWrappers/DotNetBuffer.Codeunit.al (releases/29.x)
    date: null
    commit: ea08af5ef2d6a9b5c5af4a029288abbe2c883220
    t: null
    quote: null
links:
  learn: []
  objects: []
  features: []
  topics: []
  localizations: []
  videos: []
  posts: []
  guidelines: []
object_type: codeunit
object_id: 3035
name: DotNet_Buffer
namespace: System.Utilities
app: Base Application
extends: null
first_version: "23"
last_version: "30"
present_in:
  - "23"
  - "24"
  - "25"
  - "26"
  - "27"
  - "28"
  - "29"
  - "30"
changed_in:
  - "28"
source_major: "29"
obsolete: null
countries: []
ms_search_form_ids: []
counts:
  fields: 0
  procedures: 4
  events: 0
  subscribers: 0
relations:
  out: 0
  referenced_by: 0
  pages: 0
  extended_by: 0
  event_subscribers: 0
  calls: 1
  called_by: 0
  implements: 0
---

# Codeunit 3035 "DotNet_Buffer"

> Codeunit 3035 "DotNet_Buffer" in Base Application (System.Utilities). 4 public procedures. Present since at least BC23, still in BC30, changed in BC28.

Base Application · System.Utilities · BC23-30 · [source at ea08af5e](https://github.com/microsoft/BCApps/blob/ea08af5ef2d6a9b5c5af4a029288abbe2c883220/src/Layers/W1/BaseApp/Modules/System/DotNetWrappers/DotNetBuffer.Codeunit.al) · facts from BC29

## Procedures

- `BlockCopy(var Source_DotNet_Array: Codeunit DotNet_Array; SourceOffset: Integer; var Destination_DotNet_Array: Codeunit DotNet_Array; DestinationOffset: Integer; Count: Integer)`
- `ByteLength(var DotNet_Array: Codeunit DotNet_Array): Integer`
- `GetByte(var DotNet_Array: Codeunit DotNet_Array; Index: Integer): Integer`
- `SetByte(var DotNet_Array: Codeunit DotNet_Array; Index: Integer; Value: Integer)`

## Triggers

OnRun

## Calls

From the extracted call graph of BC29 (graphify-al on the snapshot checkout): calls whose target is known from a declared type or an `Object::"Name"` argument. Interface dispatch and calls through events are not counted, so the list is not complete.

- [Codeunit 3000 "DotNet_Array"](../codeunit/3000.md) (4 calls: `BlockCopy → GetArray`, `ByteLength → GetArray`, `GetByte → GetArray`, …)

## Across versions

- Present in: BC23-30
- Changed (declaration) in: BC28

Source: AL metadata extracted from the code (names, ids, signatures, properties); no code bodies (D10).

## Ask your agent

Procedure bodies are not stored here (D10). The call sections above are our own, per object, from the BC29 call graph. For a procedure body or the calls of one procedure, ask bc-code-atlas (external, by Stefan Maron, MIT; default corpus w1-28), which the bc-observatory plugin connects: `bcatlas_resolve_node(object_type: "codeunit", object_name: "DotNet_Buffer")`, then `bcatlas_get_procedure_body` or `bcatlas_get_neighbors` on the returned id.