VB Migration Partner’s support library hides most of the differences – but not all of them - between the VB6 and the .NET versions of the controls included in Infragistics’ ActiveThreedPlus library, which in turn is a superset of the TREED.OCX library that was distributed with VB6. This article explains all the differences between the VB6 and VB.NET implementation of these controls.

1. All controls: the following properties are not implemented and are marked as obsolete: ActiveColors, AutoSize, BevelInner, BevelOuter, BevelWidth, BorderWidth, CaptionStyle, DataBindings, FloodFillStyle, Font3D, MarqueeDelay, MarqueeDirection, MarqueeScrollAmount, MarqueeStyle, Object, Outline, Picture, PictureAlignment, PictureAnimationCount, PictureAnimationDelay, PictureAnimationEnabled, PictureFrame, PictureFrames, PictureBackgroundUseMask, RoundCorners, ShadowStyle, ShadowColor, WindowLess.
2. All controls: the following events aren’t supported and are marked as obsolete: MarqueCycleBegin, MarqueeCycleEnd, PictureFrameChanged
3. SSCheck and SSOption controls : the BackStyle, CheckBoxGraphics, CheckBoxMaskColor, CheckBoxUseMask, OptionBtnGraphics, OptionBtnMaskColor, and OptionBtnUseMask properties are not implemented and are marked as obsolete.
4. SSCommand control: the AutoRepeat, BackStyle, ButtonStyle, Outline, PictureDisabled, PictureDisabledFrames, PictureDn, PictureDnFrames, Shape, and ShapeSize properties are not implemented and are marked as obsolete.
5. SSFrame control: the Alignment, BackStyle, and PictureBackgroundUseMask properties are not implemented and are marked as obsolete.
6. SSPanel control: the Outline, Picture, PictureAlignment, and PictureBackgroundUseMask properties are not implemented and are marked as obsolete. Also, this control cannot be used as a container for other controls. During the migration all child controls are moved to the form’s surface.
7. SSRibbon control: the BackStyle, ButtonStyle, Outline, PictureDisabledFrames, PictureDn, PictureDnFrames, PictureUp, PictureDnChange, Shape, and ShapeSize properties are not implemented and are marked as obsolete.
8. SSScroll control: the ScrollStyle property is not implemented and is marked as obsolete.
9. SSTransition control: the ClipControls property is not implemented and is marked as obsolete. Also, the transitionType and duration arguments of the Transition methods are ignored.