ScrollBox.Top Attached Property
Gets or sets the y-axis value of a child control's top edge. This is an attached property.
A Double value that specifies the y-axis value of a child control's top edge.
The ScrollBox's LayoutControlBase.Padding inherited property affects the offset of the client area where child controls reside. Therefore, this property affects the offsets of the child controls from the ScrollBox's left and top edges.