[OPEN] [#38] Combobox with infinite scrolling

  1. #1

    [OPEN] [#38] Combobox with infinite scrolling


    Could you please assist to create a combo with infinite scrolling like it is done with GridPanel in your examples.
    I defined the next store and associate it with a combobox control. As a result: one page only was loaded and the combobox scrollbar was set for this only page. So I can't force to show me items from other pages. Btw I saw 3 server calls for Page #1, Page #2, Page #3. So it seems they were buffered successfully.

    <ext:Store ID="storeObjects" runat="server" Buffered="true" PageSize="100" OnReadData="Store_ReadData">
            <ext:Model runat="server" IDProperty="ID">
                    <ext:ModelField Name="ID" />
                    <ext:ModelField Name="Name" />
                    <ext:JsonReader Root="data" />
    Maybe the reason that the combo does not show other pages is he can't deal with Total value which I returned in "Store_ReadData" handler?

    Thanks in advance!
    Last edited by Baidaly; Nov 17, 2012 at 12:38 AM.
  2. #2

    Unfortunately, it is not supported.

    It is not enough to set Buffered to true. A view should support buffered scrolling.

    At the moment only GridView supports it, a common DataView doesn't support. A BoundList which is used by ComboBox is a subclass of DataView.

    I have asked Mitchell here they are planning or not to support it.

    Maybe, he will answer something concrete.

    For now all that we can suggest is a DropDownField + GridPanel combination.
  3. #3

    Thanks for your response. It's a pity..
    Hope this gap will be filled in the near future!
  4. #4
    Yes, we should fill this gap.

    Thank you for the question!
  5. #5
    Opened an Issue to track this defect, see


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