protected override void PrepareContainerForItemOverride(DependencyObject element, object item)
{
base.PrepareContainerForItemOverride(element, item);
if (CurrentItem != null && CurrentItem.Equals(item))
{
LoadInlineElement();
}
Control dataRow = element as Control;
if (dataRow != null)
{
dataRow.MouseLeftButtonUp -= MouseLeftButtonUpEventHandler;
dataRow.MouseLeftButtonUp += MouseLeftButtonUpEventHandler;
Button drillDownButton = dataRow.Template.FindName("PART_DrillDownButton", dataRow) as Button;
if (drillDownButton != null)
{
drillDownButton.Click -= DrillDownButtonClickEventHandler;
drillDownButton.Click += DrillDownButtonClickEventHandler;
}
}
if (ItemVirtualized != null)
{
ItemVirtualized(this, new ItemVirtualizedEventArgs(element, item));
}
}
public virtual Boolean MoveNext()
{
Boolean result;
if (!Completed)
{
if (ProgressQueue.Count > 0)
{
TreeNodeType node = ProgressQueue.Dequeue();
foreach (TreeNodeType child in node.Children)
{
ProgressQueue.Enqueue(child);
}
CurrentItem = node;
}
else // Enumeration is complete.
{
CurrentItem = InvalidItem;
Completed = true;
}
result = !CurrentItem.Equals(InvalidItem);
}
else
{
result = false;
}
return(result);
}
public virtual Boolean MoveNext()
{
Boolean result;
if (!Completed)
{
if (CurrentItem.Equals(InvalidItem) && !Root.Equals(InvalidItem)) // Need to initialize the enumeration.
{
ProgressStack.Clear();
ITreeNode <NodeValueType, TreeNodeType> node = Root;
while (node.HasChildren)
{
ProgressStack.Push(new List <TreeNodeType>(node.Children));
Int32 index = GetTargetIndex(node.Children);
node = node.Children[index];
}
}
if (ProgressStack.Count > 0)
{
IList <TreeNodeType> nodes = ProgressStack.Peek();
while (nodes.Count == 0 && ProgressStack.Count > 0)
{
ProgressStack.Pop();
nodes = ProgressStack.Peek();
}
if (nodes.Count > 0)
{
Int32 index = GetTargetIndex(nodes);
CurrentItem = nodes[index];
nodes.RemoveAt(index);
}
else // Enumeration is complete.
{
CurrentItem = InvalidItem;
Completed = true;
}
}
result = !CurrentItem.Equals(InvalidItem);
}
else
{
result = false;
}
return(result);
}
public void Update()
{
var preUpdateItem = CurrentItem;
Sort();
if (!preUpdateItem.Equals(contents[currentTurn]))
{
currentTurn = 0;
while (!CurrentItem.Equals(preUpdateItem))
{
currentTurn++;
}
}
}
public bool Remove(T target)
{
if (target.Equals(CurrentItem))
{
return(contents.Remove(target));
}
var preRemovalItem = CurrentItem;
var wasRemoved = contents.Remove(target);
if (wasRemoved && !CurrentItem.Equals(preRemovalItem))
{
currentTurn--;
}
return(wasRemoved);
}
/// <summary>
/// Adds a new item of <typeparamref name="T"/> to the navigation history, and resets the forward history.
/// </summary>
/// <param name="item"></param>
public void Add(T item)
{
lock (SyncRoot)
{
// Don't add same item twice...
if (_index >= 0 && CurrentItem.Equals(item))
{
return;
}
if (CanGoForward)
{
// Remove excess items.
History.RemoveRange(_index + 1, Count - _index - 1);
}
History.Add(item);
_index++;
}
}
public override List <int> ApplyRule(List <int> inputItems, int uniqueItemsCount)
{
InputItems = inputItems;
OutputItems = new List <int>(InputItems);
for (int i = 0; i < OutputItems.Count; i++)
{
CurrentIndex = i;
while (i > 0 && i % 2 == 0 && CurrentItem.Equals(OutputItems[CurrentIndex - 2]))
{
int number = NextItem;
if (number.Equals(NEGATIVE))
{
number = GetNextRandomNumber(uniqueItemsCount);
}
OutputItems[CurrentIndex] = number;
}
}
return(OutputItems);
}
