SqlGeography.Z 屬性
Gets the Z (elevation) value of the instance. The semantics of the elevation value are user-defined.
命名空間： Microsoft.SqlServer.Types
組件： Microsoft.SqlServer.Types (在 Microsoft.SqlServer.Types.dll 中)
語法
'宣告
Public ReadOnly Property Z As SqlDouble
Get
'用途
Dim instance As SqlGeography
Dim value As SqlDouble
value = instance.Z
public SqlDouble Z { get; }
public:
property SqlDouble Z {
SqlDouble get ();
}
member Z : SqlDouble
function get Z () : SqlDouble
屬性值
型別：System.Data.SqlTypes.SqlDouble
A SqlDouble value that represents the elevation of the instance.
備註
The value of this property is null if the geography instance is not a point, as well as for any Point instance for which it is not set.
This property is read-only.
Z-coordinates are not used in any calculations made by the library and are not carried through any library calculations.