Hello Ben,
If you get the title you can use ContentManager and GetMetaData method, but this will work only in case you do not have two items with the same title ( for instance you use several index types in one).
However, I managed to come up with something that will do the trick.
1. Create an index.
2 Open fieldsIndexingInfo.xml file located under Add_Data/Search/
YourIndexName
3. Add the following line as shown below:
4. Restart the application and then run the indexer again.
Now you should see the ResultItem ID returned in the snippet.
If necessary you can subscribe for ItemDataBound event of the repeater that lists all items ( under SearchResults template) and extract this ID as shown below:
Sincerely yours,
Ivan Dimitrov
the Telerik team