Gets/Sets the fixed length offset at which to split. When SplitMode is set to OffsetFromNearSide, this defines the near side of the layout direction (e.g. when Vertical is false, this is the Left side). When SplitMode is set to OffsetFromFarSide, this defines the far side of the layout direction (e.g. when Vertical is false, this is the Right side). The value of this property is not used when SplitMode is set to Proportional. When set to NaN the splitter uses the panes desired width/height in the layout direction to find a suitable replacement. By default set to NaN.

public System.double SplitOffset {get; set;}