public TreeGridRow(TreeGrid treeGrid, bool isHeaderRow)
{
this.treeGrid = treeGrid;
this.IsHeaderRow = isHeaderRow;
SetBinding(Canvas.LeftProperty, new Binding
{
Source = treeGrid,
Path = new PropertyPath(TreeGrid.HorizontalOffsetProperty),
Converter = new NegatingConverter()
});
SetBinding(GridHasKeyboardFocusProperty, new Binding { Source = treeGrid, Path = new PropertyPath(TreeGrid.IsKeyboardFocusWithinProperty) });
this.MouseDown += OnMouseDown;
}
internal RootTreeGridNode(TreeGrid owner)
{
this.owner = owner;
// The root node should always have a non-null items collection.
this.items = emptyItems;
}
void InvalidateChildren(TreeGrid owner)
{
if (this.childNodes != null)
{
foreach (var child in this.childNodes.Values)
{
child.Invalidate(owner);
}
}
this.childNodes = null;
}
public static TreeGridNode CreateRootNode(TreeGrid owner)
{
// Note that the root node is always expanded...
return new RootTreeGridNode(owner) { childIndex = 0, IsExpanded = true, level = 0 };
}
void Invalidate(TreeGrid owner)
{
InvalidateChildren(owner);
StopObservingItems();
this.childIndex = -1;
owner.OnNodeInvalidated(new Reference(this));
}
public SelectionChangeSuppressor(TreeGrid grid)
{
this.grid = grid;
this.previous = grid.changeSuppressor;
this.changed = false;
grid.changeSuppressor = this;
}