Hi Paul,

There’s a way to hide the expansion icons for an igx-row-island that has no data. Our igxHierarchicalGrid provides an input to bind to a variable, which would define whether the icon should be displayed or not. That input is called hasChildrenKey. You’d have to manually do a check for the existence of data in the child grid and if there’s no data, then unset the variable, that’s responsible for the parent’s expand icon. There’s no way that we could make that check automatically, ever since when the data is loaded on demand, we cannot determine whether the child grid would have any data, prior its opening.

I’m providing you with a Stackblitz sample, forked from the igxHierarchicalGrid sample in the docs, to see what I meant with the upper explanations. Refer to the checkForEmptyChild function, which recursively checks for data presence in the children.

If you need any further assistance with that matter, please don’t hesitate to contact me.

And I’m sorry to hear that you find our IgniteUI for Angular docs not good enough. We’re constantly working on improving it.

All the best

Petko Bozhinov,
Infragistics, Inc.

I cannot reproduce what you meant. I made a sample, where I tried to replicate your issue. I didn’t manage to, but if you wish, you might fork it, edit and send it back to me for a further investigation.

Best

Petko Bozhinov,
Infragistics, Inc.