internal override void OnOrientationChanged(Orientation newValue)
{
base.OnOrientationChanged(newValue);
if (this.owner == null || !this.owner.IsTemplateApplied)
{
return;
}
if (this.owner.GetItemCount() > 0)
{
this.owner.StopAllAddedAnimations();
this.owner.StopAllRemovedAnimations();
IDataSourceItem firstViewportItem = this.GetTopVisibleContainer().associatedDataItem;
while (this.owner.realizedItems.Count > 0)
{
RadDataBoundListBoxItem lastItem = this.owner.realizedItems[this.owner.realizedItems.Count - 1] as RadDataBoundListBoxItem;
lastItem.SetVerticalOffset(0);
lastItem.SetHorizontalOffset(0);
this.owner.RecycleLastItem();
}
this.owner.initialVirtualizationItem = firstViewportItem;
this.owner.BeginAsyncBalance();
this.owner.BalanceVisualSpace();
}
}
private void ReorderViewportItemsStartingAtRow(WrapRow row)
{
WrapRow parentRow = row;
RadDataBoundListBoxItem processedItem = parentRow.firstItem as RadDataBoundListBoxItem;
parentRow.lastItem = processedItem;
processedItem.wrapRow = parentRow;
parentRow.rowOffset = this.GetRowOffset(parentRow);
double currentRowPosition = 0;
while (true)
{
this.SetItemOffset(processedItem, parentRow.rowOffset);
processedItem.wrapRow = parentRow;
switch (this.orientationCache)
{
case Orientation.Horizontal:
processedItem.SetHorizontalOffset(currentRowPosition);
break;
case Orientation.Vertical:
processedItem.SetVerticalOffset(currentRowPosition);
break;
}
currentRowPosition += this.GetItemExtent(processedItem);
double itemLength = this.GetItemLength(processedItem);
if (itemLength > parentRow.rowLength)
{
parentRow.rowLength = itemLength;
}
processedItem = processedItem.next as RadDataBoundListBoxItem;
if (processedItem == null)
{
int wrapRowsCount = this.wrapRows.Count;
this.OnRowFilled(parentRow, true);
while (this.lastWrapRow != parentRow)
{
int indexOfRowToRemove = --wrapRowsCount;
this.RemoveWrapRowAt(indexOfRowToRemove);
}
break;
}
else if (!this.CheckEnoughSpaceForItemInRow(parentRow, processedItem, true))
{
parentRow.lastItem = processedItem.previous;
currentRowPosition = 0;
this.OnRowFilled(parentRow, false);
if (parentRow.next == null)
{
parentRow = this.InsertWrapRowAt(this.wrapRows.Count);
}
else
{
parentRow = parentRow.next;
}
parentRow.rowOffset = this.GetRowOffset(parentRow);
parentRow.firstItem = processedItem;
parentRow.lastItem = processedItem;
parentRow.rowLength = this.GetItemLength(processedItem);
}
else
{
parentRow.lastItem = processedItem;
}
}
}
