We’re rewarding the question askers & reputations are being recalculated! Read more.

The ID of one or more components that are redrawn when the result of the action method returns to the client. This value can be a single ID, a comma-separated list of IDs, or a merge field expression for a list or collection of IDs.

The ID of one or more components that are redrawn when the result of the action method returns to the client. This value can be a single ID, a comma-separated list of IDs, or a merge field expression for a list or collection of IDs.

This parameter is used with almost all the "action" elements of Visualforce like a

history | excerpt history