/// <summary>
/// Expands or unexpands a specific node
/// </summary>
/// <param name="node"></param>
/// <param name="expand"></param>
public void ExpandNode(TaskTreeNode node, bool expand)
{
if (expand != node.isExpanded)
{
int index = stackPanel.Children.IndexOf(node);
if (expand)
{
node.isExpanded = true;
try
{
foreach (TaskTreeNode n in node.children)
{
stackPanel.Children.Insert(index + 1, n);
InitalizeExpandNode(n);
index += GetVisibleChildCount(n) + 1;
}
}
catch (Exception ex) { Console.WriteLine(ex); RefreshAll(); return; }
}
else
{
int children = GetVisibleChildCount(node);
try { stackPanel.Children.RemoveRange(index + 1, children); }
catch (Exception ex) { Console.WriteLine(ex); RefreshAll(); return; }
node.isExpanded = false;
}
node.ExpanderRefresh();
}
}
public void AddNode(Task task, string parentID, bool expandParent)
{
TaskTreeNode parentNode = nodeDictionary[parentID];
TaskTreeNode node = new TaskTreeNode(task, parentNode.depth + 1);
if (expandParent)
{
ExpandNode(parentNode, true);
}
parentNode.children.Add(node);
parentNode.ExpanderRefresh();
NodeAddToTree(node, parentNode);
}
/// <summary>
/// Creates the subnodes for a node assuming they were not there before
/// </summary>
/// <param name="node"></param>
private void InitalizeExpandNode(TaskTreeNode node)
{
if (node.isExpanded)
{
int index = stackPanel.Children.IndexOf(node);
foreach (TaskTreeNode n in node.children)
{
stackPanel.Children.Insert(index + 1, n);
InitalizeExpandNode(n);
index += GetVisibleChildCount(n) + 1;
}
}
node.ExpanderRefresh();
}