[Qt-interest] Model/View delayed loading for large datasets

[william.crocker at analog.com]

Jugdish wrote:
> The problem I'm running into is that immediately after requesting the 
> rowCount from the model, the view then asks for every modelIndex up to 
> the maximum row. So if I have the model return 500 for rowCount, I 
> can't figure out how to stop the view from fetching the data for all 
> 500 rows. Any ideas?
>

Did you set:

       void setUniformItemSizes(true)

> On Mon, Feb 1, 2010 at 3:55 PM, Brad Howes <howes at ll.mit.edu 
> <mailto:howes at ll.mit.edu>> wrote:
>
>     Remember, you have control over what Qt thinks is row count. If
>     you know up front that there are 3K rows, just say so, but you do
>     not have to load all 3K, only enough to fill the view port.
>
>     Brad
>
>     --
>     Brad Howes
>     Group 42
>     MIT Lincoln Laboratory • 244 Wood St. • Lexington, MA 02173
>     Phone: 781.981.5292 • Fax: 781.981.3495 • Secretary: 781.981.7420
>
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