Hello Igor,

Let's assume that I have a grid with multiple rows in the thousands.

However, at any given point of time, I can only view 50 within the UI while the rest are hidden unless you scrolled up/down.

My question is, how do I check if the rows are within visibility and not hidden, so that I don't have to update the entire thousand rows unnecessarily.

I hope I explained it clearly.

Thanks!

The GetStartEndCells() method of iGrid allows you to know the top-left and bottom-right cells currently displayed in the viewport. Having them, you can know the index of the first/last row visible in the viewport.

For more info, read the Viewport Related Tasks topic in the manual.