Is it necessary to call SPWeb.Update() after setting AllowUnsafeUpdates?

Question

Amidst working on resolving this issue, there's something I was curious about, and something that I've been very inconsistent about in my code.

If you enable SPWeb.AllowUnsafeUpdates = true, do you have to call SPWeb.Update() for that to be in effect? Or is just the one statement sufficient? I re-examined the WSS 3.0 SDK to look it up again, but either it's buried in a really random article or they aren't explaining it well.

I imagine that whatever is the case for setting it to true, it'll be the same for setting it to false in the finally block.

Answer 1

You do not need to call SPWeb.Update() because the AllowUnsafeUpdates property is not persisted. (Reference Best Pattern for AllowUnsafeUpdates)