---
id: object/page/1542
type: object
title: Page 1542 "WF Event/Event Comb. Matrix"
summary: Page 1542 "WF Event/Event Comb. Matrix" in Base Application (System.Automation). 2 public procedures. Present since at least BC23, still in BC30.
tier: official
language: en
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    url: https://github.com/microsoft/BCApps/blob/ea08af5ef2d6a9b5c5af4a029288abbe2c883220/src/Layers/W1/BaseApp/System/Workflow/WFEventEventCombMatrix.Page.al
    title: src/Layers/W1/BaseApp/System/Workflow/WFEventEventCombMatrix.Page.al (releases/29.x)
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object_type: page
object_id: 1542
name: WF Event/Event Comb. Matrix
namespace: System.Automation
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---

# Page 1542 "WF Event/Event Comb. Matrix"

> Page 1542 "WF Event/Event Comb. Matrix" in Base Application (System.Automation). 2 public procedures. Present since at least BC23, still in BC30.

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

## Properties

| Property | Value |
|---|---|
| Caption | WF Event/Event Comb. Matrix |
| SourceTable | Workflow Event |
| PageType | ListPart |

## Fields on this page

Layout controls in source order, grouped by the container they sit in. Shows: the table field a control is bound to (or its expression as written); ToolTip: the control's own, else the bound field's (marked).

| Group | Control | Shows | ToolTip |
|---|---|---|---|
| Group | Preceding Event | [Description](../table/1520.md#fields) | Specifies the workflow event that comes before the workflow event in the workflow sequence. |
|  | Cell1 | `MATRIX_CellData[1]` | — |
|  | Cell2 | `MATRIX_CellData[2]` | — |
|  | Cell3 | `MATRIX_CellData[3]` | — |
|  | Cell4 | `MATRIX_CellData[4]` | — |
|  | Cell5 | `MATRIX_CellData[5]` | — |
|  | Cell6 | `MATRIX_CellData[6]` | — |
|  | Cell7 | `MATRIX_CellData[7]` | — |
|  | Cell8 | `MATRIX_CellData[8]` | — |
|  | Cell9 | `MATRIX_CellData[9]` | — |
|  | Cell10 | `MATRIX_CellData[10]` | — |
|  | Cell11 | `MATRIX_CellData[11]` | — |
|  | Cell12 | `MATRIX_CellData[12]` | — |

## Procedures

- `SetMatrixColumns(ColumnCaptions: array[12] of Text; ColumnSetLength: Integer)`
- `ShowHideColumns()`

Plus 2 local procedures.

## Triggers

OnAfterGetCurrRecord, OnAfterGetRecord, OnOpenPage

## Relations

- source table [Table 1520 "Workflow Event"](../table/1520.md)

## 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 1520 "Workflow Event Handling"](../codeunit/1520.md) (1 call: `UpdateMatrixData → AddEventPredecessor`)

## Across versions

- Present in: BC23-30
- Changed (declaration) in: none

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: "page", object_name: "WF Event/Event Comb. Matrix")`, then `bcatlas_get_procedure_body` or `bcatlas_get_neighbors` on the returned id.