public void AddChild(UIElement ui)
{
if (this.uiList == null)
{
this.uiList = new UICollection(this);
}
needContentLayout = true;
this.uiList.AddUI(ui);
if (this.HasReadyRenderElement)
{
primElement.AddChild(ui);
if (this.panelLayoutKind != BoxContentLayoutKind.Absolute)
{
this.InvalidateLayout();
}
}
if (ui.NeedContentLayout)
{
ui.InvalidateLayout();
}
}
public void RemoveChild(UIElement ui)