/// <summary> /// Constructs an instance of <c>PropertyExpressionPart</c>. /// </summary> /// <param name="nextPart"> /// The next part in the chain of parts held in the <see cref="PropertyExpression"/>. /// </param> protected PropertyExpressionPart(PropertyExpressionPart nextPart) { _nextPart = nextPart; _object = new WeakReference(null); }