System.Windows.DependencyObject.SetValue C# (CSharp) Method

        public void SetValue(DependencyProperty dp, object value)
        {
            if (IsSealed)
                throw new InvalidOperationException ("Cannot manipulate property values on a sealed DependencyObject");

            if (!dp.IsValidType (value))
                throw new ArgumentException ("value not of the correct type for this DependencyProperty");

            ValidateValueCallback validate = dp.ValidateValueCallback;
            if (validate != null && !validate(value))
                throw new Exception("Value does not validate");
            else
                properties[dp] = value;
        }

 private static void OnTransformChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
 {
     d.SetValue(UIElement.RenderTransformProperty, e.NewValue);
     if (TrackableRenderTransform.TransformChanged == null)
         return;
     TrackableRenderTransform.TransformChanged(d, e);
 }