SimpleTemplateFormat Class
SharePoint 2010
Supports an array of tags one level deep (no tags within tags).
Namespace:
Microsoft.Office.Server.ActivityFeed
Assembly: Microsoft.Office.Server.UserProfiles (in Microsoft.Office.Server.UserProfiles.dll)
Each tag is identified by the contents within a pair of braces ({}). These braces cannot be escaped and therefore cannot be in string literals. Each tag can be substituted with a value from the TemplateVariable property of an ActivityEvent object by a feed generator. Tags that are not understood by a generator can be passed on to another generator in a pipeline until there are no tags remain to be substituted. A list tag is supported, but the contents of a list must be of the same type in a TemplateVariable.