What's the easiest way to exclude a dataset from being draggable?

[karloluis]

As the question says. There are some datasets that should be draggable and some not. I can think on ways to use the OnDrag events to prevent certain dataset indexes from being updated.
Is there some property that can configure it this rather than adding custom ways to filter the events from modifying the value?

[artus9033]

We should have this documented at a later stage (we are missing solid API docs), so this is a good question. If you take a look at how this is currently implemented, it looks as follows:

• setting a dragData key (full path: data.datasets[index].dragData) to false on an entire dataset
• setting a dragData key to false on a individual scales (full path: config.options.scales[index].dragData)
• setting a dragData key to false on individual samples (full path: data.datasets[index].data[elementIndex].dragData)