By default, the EnableParts property is 897 ( that's a OR combination of exLowerBackPart, exThumbPart, exUpperBackPart). The VisiblePart property specifies which part is visible and which part is hidden. By default, when a part becomes visible, automatically the EnablePart is called. Use the EnablePart property to disable parts of the control. A disabled part can't be clicked, and shows the disabled state. Use the Background property to apply a visual effect on any part of the control. The EnableParts property is similar with the EnablePart property.

By default, the following parts are enabled:

• exLowerBackPart ( the part between the start and the thumb part of the control )
• exThumbPart ( the thumb/slider part )
• exUpperBackPart ( the part between the thumb and the end part of the control )