---
id: object/codeunit/1235
type: object
title: Codeunit 1235 "XML Buffer Writer"
summary: Codeunit 1235 "XML Buffer Writer" in Base Application (System.IO). 9 public procedures, 5 events. Present since at least BC23, still in BC30, changed in BC26, BC29.
tier: official
language: en
tags:
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  - base application
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  last_changed: "29"
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    url: https://github.com/microsoft/BCApps/blob/ea08af5ef2d6a9b5c5af4a029288abbe2c883220/src/Layers/W1/BaseApp/System/DataExchange/XMLBufferWriter.Codeunit.al
    title: src/Layers/W1/BaseApp/System/DataExchange/XMLBufferWriter.Codeunit.al (releases/29.x)
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object_type: codeunit
object_id: 1235
name: XML Buffer Writer
namespace: System.IO
app: Base Application
extends: null
first_version: "23"
last_version: "30"
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---

# Codeunit 1235 "XML Buffer Writer"

> Codeunit 1235 "XML Buffer Writer" in Base Application (System.IO). 9 public procedures, 5 events. Present since at least BC23, still in BC30, changed in BC26, BC29.

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

## Events published

- `OnBeforeInsertAttribute(var XMLBuffer: Record "XML Buffer"; ParentXMLBuffer: Record "XML Buffer"; NodeNumber: Integer; NodeDepth: Integer; var AttributeName: Text; var AttributeValue: Text; var IsHandled: Boolean)` (integration)
- `OnBeforeInsertAttributeWithNamespace(var XMLBuffer: Record "XML Buffer"; ParentXMLBuffer: Record "XML Buffer"; NodeNumber: Integer; NodeDepth: Integer; var AttributeNameWithNamespace: Text; var AttributeValue: Text; var IsHandled: Boolean)` (integration)
- `OnBeforeInsertElement(var XMLBuffer: Record "XML Buffer"; ParentXMLBuffer: Record "XML Buffer"; ElementNumber: Integer; ElementDepth: Integer; var ElementNameAndNamespace: Text; var ElementValue: Text; var IsHandled: Boolean)` (integration)
- `OnInsertElementOnBeforeInsertXMLBuffer(var XMLBuffer: Record "XML Buffer"; ParentXMLBuffer: Record "XML Buffer"; ElementNumber: Integer; ElementDepth: Integer; var ElementNameAndNamespace: Text; var ElementValue: Text)` (integration)
- `OnAfterReadAndInsertXmlElement(var XMLBuffer: Record "XML Buffer"; ParentXMLBuffer: Record "XML Buffer"; var ElementNumber: Integer; var InsertedXMLBufferElement: Record "XML Buffer"; var ProcessingInstructionNumber: Integer)` (integration)

## Procedures

- `InitializeXMLBufferFrom(var XMLBuffer: Record "XML Buffer"; StreamOrServerFile: Variant)`
- `InitializeXMLBufferFromStream(var XMLBuffer: Record "XML Buffer"; XmlStream: InStream)`
- `InitializeXMLBufferFromText(var XMLBuffer: Record "XML Buffer"; XmlText: Text)`
- `GenerateStructureFromPath(var XMLBuffer: Record "XML Buffer"; Path: Text)`
- `GenerateStructure(var XMLBuffer: Record "XML Buffer"; OutStream: OutStream)`
- `InsertAttribute(var XMLBuffer: Record "XML Buffer"; ParentXMLBuffer: Record "XML Buffer"; NodeNumber: Integer; NodeDepth: Integer; AttributeName: Text; AttributeValue: Text)`
- `InsertAttributeWithNamespace(var XMLBuffer: Record "XML Buffer"; ParentXMLBuffer: Record "XML Buffer"; NodeNumber: Integer; NodeDepth: Integer; AttributeNameWithNamespace: Text; AttributeValue: Text)`
- `InsertElement(var XMLBuffer: Record "XML Buffer"; ParentXMLBuffer: Record "XML Buffer"; ElementNumber: Integer; ElementDepth: Integer; ElementNameAndNamespace: Text; ElementValue: Text)`
- `InsertProcessingInstruction(var XMLBuffer: Record "XML Buffer"; ParentXMLBuffer: Record "XML Buffer"; NodeNumber: Integer; NodeDepth: Integer; InstructionName: Text; InstructionValue: Text)`

Plus 20 local procedures.

## 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 1237 "Get Json Structure"](../codeunit/1237.md) (1 call: `GenerateStructureFromPath → GenerateStructure`)
- [Codeunit 419 "File Management"](../codeunit/419.md) (1 call: `CreateXMLReaderFromPath → IsAllowedPath`)

## Called by

- [Table 1235 "XML Buffer"](../table/1235.md) (9 calls: `AddAttribute → InsertAttribute`, `AddAttributeWithNamespace → InsertAttributeWithNamespace`, `AddGroupElement → InsertElement`, …)
- [Codeunit 1236 "Suggest Col. Definition - XML"](../codeunit/1236.md) (1 call: `GenerateDataExchColDef → GenerateStructureFromPath`)
- [Codeunit 1237 "Get Json Structure"](../codeunit/1237.md) (1 call: `GenerateStructure → GenerateStructure`)
- [Table 1650 "Curr. Exch. Rate Update Setup"](../table/1650.md) (1 call: `GetXMLStructure → GenerateStructureFromPath`)

## Across versions

- Present in: BC23-30
- Changed (declaration) in: BC26, BC29

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: "XML Buffer Writer")`, then `bcatlas_get_procedure_body` or `bcatlas_get_neighbors` on the returned id.