Problem On Dynamic Loading

Question

Can anyone give me  an example of how to dynamically load items of a ListView with XAML and C#. I ever set the following attribute values as "IncrementalLoadingThreshold="1" DataFetchSize="2" IncrementalLoadingTrigger="Edge"" in the hope of dynamically loading the out-of-boundary items when I had dragged the scroller for a certain distance.My data sources to load are pictures added in my project.

Answer 1

For this to work, you have to implement the ISupportIncrementalLoading interface. There is an example here. And the interface looks something like:

    // Summary:
    //     Specifies a calling contract for collection views that support incremental
    //     loading.
    public interface ISupportIncrementalLoading
    {
        // Summary:
        //     Gets a sentinel value that supports incremental loading implementations.
        //
        // Returns:
        //     True if additional unloaded items remain in the view; otherwise, false.
        bool HasMoreItems { get; }

        // Summary:
        //     Initializes incremental loading from the view.
        //
        // Parameters:
        //   count:
        //     The number of items to load.
        //
        // Returns:
        //     The wrapped results of the load operation.
        IAsyncOperation<LoadMoreItemsResult> LoadMoreItemsAsync(uint count);
    }

Hope it helps...

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Can Bilgin
Blog CompuSight

Answer 2

Thank you so much for your answer,  It really helps me.