Scrolling speed of a data grid

[Terence Heaford]

Hi Trevor,

As promised I have made two short videos and uploaded them to dropbox.

Here are the links:

https://db.tt/N5uFSHft

https://db.tt/Em7cHRsS

Both zip files are approx. 25mb.

The first link is to a video of the Data Grid and demonstrates it’s action.

The second link is to a Table consisting of grouped fields and a scroller that I have partially completed
just to see if the performance is different to the Data Grid.

The performance of both is marginally better than in the video. Seemingly QuickTime recording
the screen affects performance very slightly.

It can be seen that the simple table has better performance than the Data Grid probably because it has no
bells and whistles.
Could this be why I am getting a performance hit from the Data Grid?

I hope there is a solution.

All the best

Terry



On 25 Feb 2014, at 20:27, Trevor DeVore <lists at mangomultimedia.com> wrote:

> Hi Terence,
> 
> This sounds more of a speed issue related to how often the scrolling is
> fired while using page up/down rather than a general performance issue with
> the data grid.
> 
> If you click on the data grid scrollbar and just drag from the top to
> bottom does the data grid respond quickly?
> 
> If so then it may just be a matter of seeing if we can get the page up/page
> down to fire more frequently.
>