DataGrid: load images when in view
ambassador at fourthworld.com
Fri Nov 8 15:25:41 EST 2019
Dan Friedman wrote:
> Say you have a form DataGrid that is displaying 100 entries. Each
> entry has an image (loaded from a server) and some text. When you
> set the dgData, it will get all 100 images as it's building the rows.
> This is obviously going to take some time to load. Is there a way
> to have the DataGrid only load the row's image when that row comes
> into view? This way it will load the images as they are needed.
That's how the DG works, by design, and the main reason for using it
over a collection of nested groups.
The DG will only populate rows as they are brought into view. At any
given time the number of rendered rows = the number of visible rows.
I once made a media browser that allows access to 2600 images, and the
DG handled it like a champ.
Fourth World Systems
Software Design and Development for the Desktop, Mobile, and the Web
Ambassador at FourthWorld.com http://www.FourthWorld.com
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