Gets the M (measure) value of the SqlGeometry instance. The semantics of the measure value are user-defined.
命名空间： Microsoft.SqlServer.Types
程序集： Microsoft.SqlServer.Types（在 Microsoft.SqlServer.Types.dll 中）
语法
声明
Public ReadOnly Property M As SqlDouble
Get
用法
Dim instance As SqlGeometry
Dim value As SqlDouble
value = instance.M
public SqlDouble M { get; }
public:
property SqlDouble M {
SqlDouble get ();
}
member M : SqlDouble
function get M () : SqlDouble
属性值
类型：System.Data.SqlTypes.SqlDouble
A SqlDouble value containing the measure of the SqlGeometry value.
注释
The value of this property is nullnull 引用（在 Visual Basic 中为 Nothing） if the SqlGeometry instance is not a Point, as well as for any Point instance for which it is not set.
This property is read-only.
M values are not used in any calculations made by the library and will not be carried through any library calculations.