Interactivity Service and Selection Manager in Custom Visuals

Hi Anonymous,

My understanding of these is that:

• The Selection Manager is used to generate Selection IDs.
• The Interactivity Service requires Selection IDs to correctly identify how to interact with data within/between visuals when highlighting and cross-filtering.

Selection IDs are also used by the report page (canvas) tooltips to correctly identify when to display those vs. a standard tooltip. There was a thread the other day that has an example to illustrate.

I haven't come across any specific examples online, except for these videos on Jorge's YouTube channel, which help illustate the in the context of the sample bar chart, which uses a categorical data mapping. These videos are a couple of years old but the premise still holds-up today.:

• Adding Interaction
• Adding Highlighting

Selection ID support for matrix and table dataViewMappings is pretty new, and they aren't too well covered at present in terms of examples.

The Context Menu API is also a relatively new addition and the linked page/sample bar chart is the only example I've seen to date. I haven't personally had a chance to play with it but this is how you'd conceptually manage Drillthrough - I see the example does refer to a Selection ID.

If you're after drilldown vs. drillthrough, then there's a short intro here, but this only refers to enabling it in your visual. I've only done as much as this when setting up a visual and haven't looked into drill-down by clicking on a node for example.

I'm not sure if this resolves your question but I hope that it gives you some ideas, at least :)

Good luck!

Daniel