IParent
Implement this interface if your object can contain list of child objects.
Adds a child object to this object's childs.
Gets a value indicating that this object can contain the specified child object.
Gets a list of child objects.
Returns z-order of the specified child object.
Removes a specified object from this object's childs.
Sets the z-order of the specified object.
Updates the children layout when the size of this object is changed by dx, dy values.