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    Question How to detect if a Border Layout Panel is open or closed?

    How to detect if a Border Layout Panel is open or closed?


    I need to be able to programatically detect whether the east pane of a border layout is open or closed. If it is open, I will make an ajax call, if it is closed I will not (save on loading large images if they are not going to be seen...)

    I have not found away to determine the current state of a region - open or closed - in order to then collapse or expand it based on mouse clicks in another region.

    Any ideas?

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    http://extjs.com/deploy/ext-1.1-beta...html#isVisible. You could also read the collapsed property.

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    TryanDLS,

    Nope. isVisible() seems to work only when the pane is hidden or not (whether the region can be seen or not). I have a closed pane that still responds to isVisible() as true.

    The 'collapsed' property does not appear to be public, but I'll give it a try.

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    There are also regioncollapsed, *expanded etc. events in BorderLayout.

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    'collapsed' property works.

    Strange that it is not listed as a public accessible property in the docs for a LayoutRegion, yet is.

    Can I assume that the config options are also publicly accessible properties or are the docs missing this one?

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    Quote Originally Posted by johnnycannuk View Post
    'collapsed' property works.

    Strange that it is not listed as a public accessible property in the docs for a LayoutRegion, yet is.

    Can I assume that the config options are also publicly accessible properties or are the docs missing this one?
    In general, if you can set something as a config value, it's a public property. The doc hasn't caught up in all cases to list them in both config and property.

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