private ExTreeViewItem GetVisibleTreeItem(TreePosition pos, Action <ExTreeViewItem> walk = null)
{
Tree.UpdateLayout();
Stack <TreeStoreNode> nodes = new Stack <TreeStoreNode> ();
TreeStoreNode node = (TreeStoreNode)pos;
do
{
nodes.Push(node);
node = node.Parent;
} while (node != null);
ExTreeViewItem treeItem = null;
ItemContainerGenerator g = Tree.ItemContainerGenerator;
while (nodes.Count > 0)
{
node = nodes.Pop();
treeItem = (ExTreeViewItem)g.ContainerFromItem(node);
treeItem.UpdateLayout();
g = treeItem.ItemContainerGenerator;
if (walk != null)
{
walk(treeItem);
}
}
return(treeItem);
}
public void ExpandToRow(TreePosition pos)
{
TreeStoreNode parent = ((TreeStoreNode)pos).Parent;
if (parent != null)
{
parent.IsExpanded = true;
}
}
public void ExpandRow(TreePosition row, bool expandChildren)
{
TreeStoreNode node = ((TreeStoreNode)row);
node.IsExpanded = true;
if (expandChildren)
{
foreach (TreeStoreNode childNode in node.Children)
{
childNode.IsExpanded = true;
}
}
}
public TreePosition AddChild(TreePosition pos)
{
var parent = (TreeStoreNode)pos;
var childNode = new TreeStoreNode(
new object[this.columnTypes.Length],
parent);
GetListForNode(parent).Add(childNode);
OnNodeInserted(new TreeNodeEventArgs(childNode));
return(childNode);
}
public TreePosition InsertAfter(TreePosition pos)
{
var node = (TreeStoreNode)pos;
var newNode = new TreeStoreNode(
new object[this.columnTypes.Length],
node.Parent);
var list = GetContainingList(node);
int index = list.IndexOf(node);
list.Insert(index + 1, newNode);
OnNodeInserted(new TreeNodeEventArgs(newNode));
return(newNode);
}
private ObservableCollection <TreeStoreNode> GetListForNode(TreeStoreNode node)
{
return((node == null) ? this.topNodes : node.Children);
}
private ObservableCollection <TreeStoreNode> GetContainingList(TreeStoreNode node)
{
return((node.Parent == null) ? this.topNodes : node.Parent.Children);
}
private ObservableCollection<TreeStoreNode> GetListForNode (TreeStoreNode node)
{
return (node == null) ? this.topNodes : node.Children;
}
private ObservableCollection<TreeStoreNode> GetContainingList (TreeStoreNode node)
{
return (node.Parent == null) ? this.topNodes : node.Parent.Children;
}
public TreePosition AddChild (TreePosition pos)
{
var parent = (TreeStoreNode) pos;
var childNode = new TreeStoreNode (
new object[this.columnTypes.Length],
parent);
GetListForNode (parent).Add (childNode);
OnNodeInserted (new TreeNodeEventArgs (childNode));
return childNode;
}
public TreePosition InsertAfter (TreePosition pos)
{
var node = (TreeStoreNode) pos;
var newNode = new TreeStoreNode (
new object[this.columnTypes.Length],
node.Parent);
var list = GetContainingList (node);
int index = list.IndexOf (node);
list.Insert (index + 1, newNode);
OnNodeInserted (new TreeNodeEventArgs (newNode));
return newNode;
}
public TreeStoreNode(object[] values, TreeStoreNode parent)
: base(values)
{
Parent = parent;
}
public TreeStoreNode (object[] values, TreeStoreNode parent)
: base (values)
{
Parent = parent;
}
