[ObsoleteAttribute("This method is deprecated in Revit 2024 with the introduction of the new Toposolid elements.  It is recommended that TopographySurface elements should be converted to Toposolid elements to enable better editing options.")]
public void ChangePointsElevation(
	IList<XYZ> points,
	double elevationValue
)

<ObsoleteAttribute("This method is deprecated in Revit 2024 with the introduction of the new Toposolid elements.  It is recommended that TopographySurface elements should be converted to Toposolid elements to enable better editing options.")> _
Public Sub ChangePointsElevation ( _
	points As IList(Of XYZ), _
	elevationValue As Double _
)

[ObsoleteAttribute(L"This method is deprecated in Revit 2024 with the introduction of the new Toposolid elements.  It is recommended that TopographySurface elements should be converted to Toposolid elements to enable better editing options.")]
public:
void ChangePointsElevation(
	IList<XYZ^>^ points, 
	double elevationValue
)

If none of the points in the collection doesn's exist, an exception will be thrown. This function ignores input points that do not exist, unless all of the input points do not exist, which will result in an exception. This applies to a TopographySurface element (not a SiteSubRegion or a topography surface associated with a BuildingPad), which shoule be in an active TopographyEditScope.