Question

Using .NET 4, how do I add custom properties to a document?

I’m assuming it goes something like this:

WordApp // an instance of Microsoft.Office.Interop.Word.Application
  .ActiveDocument
  .CustomDocumentProperties
  .Add...?

I cannot seem to find documentation for this that applies to .NET4/interops v14.

Answer 1

It took a lot of guessing (much more than 12 minutes worth, I’m embarrassed to say!) to figure this out:

WordApp // an instance of Microsoft.Office.Interop.Word.Application
  .ActiveDocument
  .CustomDocumentProperties
  .Add(Name: "PropertyName", 
       LinkToContent: false, 
       Type: 4, 
       Value: "PropertyValue");

I couldn’t find a decent enum for the types, so I dug the magic number “4” out of a forum post for string and it works…

For casual browsers, this was tricky because CustomDocumentProperties is dynamic, so I get no Intellisense. And for some reason, I cannot find docs on this.