private void RecycleItems(ItemLayoutInfo layoutInfo)
{
foreach (UIElement child in Children)
{
var virtualItemIndex = GetVirtualItemIndex(child);
if (virtualItemIndex < layoutInfo.FirstRealizedItemIndex || virtualItemIndex > layoutInfo.LastRealizedItemIndex)
{
var generatorPosition = _itemsGenerator.GeneratorPositionFromIndex(virtualItemIndex);
if (generatorPosition.Index >= 0)
{
try
{
_itemsGenerator.Recycle(generatorPosition, 1);
}
catch (ArgumentException)
{
//I have seen the following exception which appears to be a non-issue
// GeneratorPosition '0,10' passed to Remove does not have Offset equal to 0.
}
}
}
SetVirtualItemIndex(child, -1);
}
}
private void RecycleItems(ItemLayoutInfo layoutInfo)
{
foreach (var child in Children.OfType <UIElement>())
{
var virtualItemIndex = GetVirtualItemIndex(child);
if (virtualItemIndex < layoutInfo.FirstRealizedItemIndex || virtualItemIndex > layoutInfo.LastRealizedItemIndex)
{
var generatorPosition = _itemsGenerator.GeneratorPositionFromIndex(virtualItemIndex);
if (generatorPosition.Index >= 0)
{
_itemsGenerator.Recycle(generatorPosition, 1);
}
}
SetVirtualItemIndex(child, -1);
}
}