Docs API Reference

InitializationReason Enumeration

Specifies whether the add-in was just inserted or was already contained in the document.

Hosts: Excel, Project, Word
Added in 1.0



Enumeration Value Description
Office.InitializationReason.Inserted "inserted" The add-in was just inserted into the document.
Office.InitializationReason.DocumentOpened "documentOpened" The add-in is already part of the document that was opened.

Support details

A capital Y in the following matrix indicates that this enumeration is supported in the corresponding Office host application. An empty cell indicates that the Office host application doesn't support this enumeration.

For more information about Office host application and server requirements, see Requirements for running Office Add-ins.

Supported hosts, by platform

Office for Windows desktop Office Online (in browser) Office for iPad
Excel Y Y Y
Project Y
Word Y Y
Add-in types Content, task pane
Library Office.js
Namespace Office

Support history

Version Changes
1.1 Added support for Excel and Word in Office for iPad.
1.0 Introduced