protected override void OnCollectionChanged(NotifyCollectionChangedEventArgs args)
{
base.OnCollectionChanged(args);
if (this.owner != null)
{
RadTreeViewElement treeViewElement = this.owner.TreeViewElement;
if (treeViewElement != null)
{
if (args.Action == NotifyCollectionChangedAction.Add)
{
RadTreeNode node = (RadTreeNode)args.NewItems[0];
treeViewElement.Update(RadTreeViewElement.UpdateActions.ItemAdded, node);
treeViewElement.OnNodeAdded(new RadTreeViewEventArgs(node));
}
else if (args.Action == NotifyCollectionChangedAction.Remove)
{
RadTreeNode node = (RadTreeNode)args.NewItems[0];
treeViewElement.Update(RadTreeViewElement.UpdateActions.ItemRemoved, node);
treeViewElement.OnNodeRemoved(new RadTreeViewEventArgs(node));
}
else if (args.Action == NotifyCollectionChangedAction.Move)
{
RadTreeNode node = (RadTreeNode)args.NewItems[0];
treeViewElement.Update(RadTreeViewElement.UpdateActions.ItemMoved, node);
}
else if (args.Action == NotifyCollectionChangedAction.Reset)
{
treeViewElement.Update(RadTreeViewElement.UpdateActions.Reset);
}
}
}
}
internal void ProcessSelectedNode(RadTreeNode radTreeNode)
{
if (radTreeNode.Selected)
{
this.Items.Add(radTreeNode);
}
else
{
this.Items.Remove(radTreeNode);
}
treeView.Update(Telerik.WinControls.UI.RadTreeViewElement.UpdateActions.StateChanged, radTreeNode);
}
protected override void OnCollectionChanged(NotifyCollectionChangedEventArgs args)
{
base.OnCollectionChanged(args);
if (this.Suspended || this.owner == null)
return;
RadTreeViewElement treeViewElement = this.owner.TreeViewElement;
if (treeViewElement == null)
return;
if (!treeViewElement.IsSuspended)
{
this.owner.InvalidateOnState();
this.owner.UpdateParentCheckState();
}
if (args.Action == NotifyCollectionChangedAction.Add)
{
RadTreeNode newItem = (RadTreeNode) args.NewItems[0];
treeViewElement.Update(RadTreeViewElement.UpdateActions.ItemAdded, newItem);
treeViewElement.OnNodeAdded(new RadTreeViewEventArgs(newItem));
}
else if (args.Action == NotifyCollectionChangedAction.Remove)
{
RadTreeNode newItem = (RadTreeNode) args.NewItems[0];
treeViewElement.Update(RadTreeViewElement.UpdateActions.ItemRemoved, newItem);
treeViewElement.OnNodeRemoved(new RadTreeViewEventArgs(newItem));
}
else if (args.Action == NotifyCollectionChangedAction.Move)
{
RadTreeNode newItem = (RadTreeNode) args.NewItems[0];
treeViewElement.Update(RadTreeViewElement.UpdateActions.ItemMoved, newItem);
}
else
{
if (args.Action != NotifyCollectionChangedAction.Reset)
return;
RadTreeViewElement.UpdateActions updateAction = this.owner is RadTreeViewElement.RootTreeNode ? RadTreeViewElement.UpdateActions.Reset : RadTreeViewElement.UpdateActions.Resume;
treeViewElement.Update(updateAction);
}
}
protected override void OnKeyDown(KeyEventArgs e)
{
TreeNodeElement ownerElement = this.OwnerElement as TreeNodeElement;
if (ownerElement == null || ownerElement.TreeViewElement == null)
{
return;
}
switch (e.KeyCode)
{
case Keys.Return:
ownerElement.TreeViewElement.EndEdit();
break;
case Keys.Escape:
ownerElement.TreeViewElement.CancelEdit();
break;
case Keys.Up:
if (this.Multiline && (this.selectionLength != 0 || !this.isAtFirstLine))
{
break;
}
RadTreeViewElement treeViewElement1 = ownerElement.TreeViewElement;
ownerElement.TreeViewElement.EndEdit();
treeViewElement1.Update(RadTreeViewElement.UpdateActions.Reset);
treeViewElement1.ProcessKeyDown(e);
break;
case Keys.Down:
if (this.Multiline && (this.selectionLength != 0 || !this.isAtLastLine))
{
break;
}
RadTreeViewElement treeViewElement2 = ownerElement.TreeViewElement;
ownerElement.TreeViewElement.EndEdit();
treeViewElement2.Update(RadTreeViewElement.UpdateActions.Reset);
treeViewElement2.ProcessKeyDown(e);
break;
}
}
protected void UpdateViewOnExpandChanged(RadTreeNode node)
{
treeViewElement.Update(RadTreeViewElement.UpdateActions.ExpandedChanged, node);
treeViewElement.UpdateLayout();
}
