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Thread: TreePanel very slow at loading & expanding ~250 nodes after ajax call to get nodes

  1. #11
    Sencha User
    Join Date
    Dec 2013
    Posts
    1

    Default

    As to ExtJS 4.2, try adding
    Code:
    plugins: {     ptype: 'bufferedrenderer' }
    to your treepanel configuration.

  2. #12

    Join Date
    Aug 2007
    Location
    Romania
    Posts
    41

    Default

    I'm having issues with expanding and collapsing all nodes of ~800 leafs grouped in folders. It is very slow and it is annoying because it actually freezes my application.
    The best solution I came up was setting a parameter on the store to return the folders all expanded or collapsed in the response JSON and I reload the store.
    I hope this helps anyone.

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