#office.js

Beware the Dialog API falling silent under IE11

Issue Description I’ve been leveraging the Office.js Dialog API recently and found a scenario where I just couldn’t get it to behave properly. At the moment this appears to be either a bug or limitation of the Dialog API. I found that the calling MessageParent() from the dialog fails to trigger the registered callback method in the host add-in when running in IE11 (on both Win 7 and Win 8.1)…

Another year, another MVP Award

The first of January I was (again) awarded  MVP, for the 12th year already. After a bit of a roundtrip I returned back on my ‘home base’ with the award category of “Office Development”. Initially I was awarded MVP “Visual Studio Tools for the Office System” (I know, what is in a name?) in 2006 and was able to hold on to that for nine years. VSTO however went on maintenance mode and the category…

How to access properties of Office.js objects that don’t exist in the Typescript definition file

When developing Office Add-ins and using Typescript, I’ve found the Office.js Typescript definition file available at DefinatelyTyped to only support a fraction of the objects and properties that are available within the Office.js library. To give you an idea of what I mean, here is a list of properties that are available on the Office.context.mailbox.item object (according to the API…