/* Note: This function has been added because a white-background was observed when the list resized,
* when the number of elements were lesser than the maximum capacity of the list (ie. 4).
* Binding Height/MaxHeight Properties did not solve this issue.
*/
private void SuggestionList_UpdateListSize(object sender, Windows.UI.Xaml.Controls.ContainerContentChangingEventArgs e)
{
int count = _viewModel?.Results?.Results.Count ?? 0;
int displayCount = Math.Min(count, _settings.MaxResultsToShow);
_resultList.Height = displayCount * ROW_HEIGHT;
}
private static void Target_ContainerContentChanging(Windows.UI.Xaml.Controls.ListViewBase sender, Windows.UI.Xaml.Controls.ContainerContentChangingEventArgs args)
{
var dispatcher = sender.Dispatcher;
if (args.Item is IDeferInitialize updatable)
{
if (updatable.IsInitialized)
{
return;
}
updatable.IsInitialized = true;
_ = dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, () =>
{
updatable.DeferInitializeAsync();
});
// Handled = trueを指定すると、UIの描画が始まる模様
// データ受信などが完了してない状態ではHandledを変更しない
//args.Handled = true;
}
}
private static async void Target_ContainerContentChanging(Windows.UI.Xaml.Controls.ListViewBase sender, Windows.UI.Xaml.Controls.ContainerContentChangingEventArgs args)
{
if (args.Item is IDeferInitialize updatable)
{
if (updatable.IsInitialized)
{
return;
}
updatable.IsInitialized = true;
await updatable.DeferInitializeAsync();
// Handled = trueを指定すると、UIの描画が始まる模様
// データ受信などが完了してない状態ではHandledを変更しない
//args.Handled = true;
}
}
