private void SetState(IVirtualList list, QueuedBackgroundWorkerState loadingState)
{
if (list == List && loadingState == LoadingState)
{
return;
}
List = list;
LoadingState = loadingState;
VirtualListLoadingIndicator loadingIndicator = LoadingIndicator;
bool oldIsVisible = loadingIndicator != null;
bool newIsVisible = LoadingState != QueuedBackgroundWorkerState.Standby;
if (oldIsVisible == newIsVisible)
{
if (newIsVisible)
{
loadingIndicator.SetState(List, LoadingState);
}
}
else if (newIsVisible)
{
AdornerManager.SetAdorner(_itemsControl, new VirtualListLoadingIndicator(List, LoadingState));
}
else
{
AdornerManager.SetAdorner(_itemsControl, null);
}
}
private static void CanExecuteRetryCommand(object sender, CanExecuteRoutedEventArgs e)
{
VirtualListLoadingIndicator control = (VirtualListLoadingIndicator)sender;
e.CanExecute = control.HasError;
}