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Thread: grouping grids - performance problems when displaying many rows

  1. #1
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    Default grouping grids - performance problems when displaying many rows

    Hello,

    for my statistics application, I try to load about one thousand dummy-rows into a grouping grid.

    It works fine. But, every action on the grid (sorting, menu, hover on rows) takes about 10 seconds. Also, my whole browser window (ie7) freezes as long my action is beeing performed.

    Someone used the grid for that many rows?

    Thanks

  2. #2
    Sencha User jay@moduscreate.com's Avatar
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    how many rows? There are going to be performance issues when you try to do too much with javascript.

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    about 1500 rows... showing articlecalculations...

  4. #4
    Sencha User jay@moduscreate.com's Avatar
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    yeah that's a ton of rows. How many columns? You have to think in context of the framework - each grouping/sort function needs to re-order and shuffle data around, delete dom objects, then redraw. that's a lot of work.

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