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Thread: Is there a way to capture each & every element in tree/table view like model::data()

  1. #1
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    Default Is there a way to capture each & every element in tree/table view like model::data()

    Is there a way to capure each & every element in tree/table view which are currently shown.

    i have requirement like if my tree item meets certain requirement ex: if item data = 0000 expand It.

    So like in model where in data function we can capture all the elements which are currently in view, similarly I need a way in view also so that i can Expand my item..

    My use case: i am doing lazy population of tree. When i do this I am loading & showing only top 100 items in view & now if user expands some items in top 100 & he now scroll to end of the tree (or by press on end key he scroll to end of the tree) now i am re populating tree with last 100 items &now user press home & now i get top 100 items & repopulating a tree but here i am loosing expanded items.. now if I have model::data() like function i can expand few the items by storing expanded items unique values in my case they are database indexes.


    Thanks in advance.
    Thanks :-)

  2. #2
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    Default Re: Is there a way to capture each & every element in tree/table view like model::dat

    Maybe keep a list of expanded items?

    Cheers,
    _

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    Default Re: Is there a way to capture each & every element in tree/table view like model::dat

    Quote Originally Posted by anda_skoa View Post
    Maybe keep a list of expanded items?

    Cheers,
    _
    Of course but I need this feature for other purposes Also
    For ex: there is a bug in Qt, i.e canFetchMore() & fetchMore() will get called only for top level items they will not get called for non top level items (level 2,3,4......) during scroll.

    So in this case also If I would be able to recognise each & every element I can load children's dynamically. So basically I am looking for this unique feature rather than doing some workarounds each time I run into this kind of situation..

    Any suggestions for doing this or better place/function in view.. I tried connecting scroll bar moved signal to some slot & get leftmost bottom element but it did not workout.
    Thanks :-)

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    Default Re: Is there a way to capture each & every element in tree/table view like model::dat

    I am still looking for this, Any hint or idea to implement this ???
    Thanks :-)

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