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SqlGeometry.InstanceOf 方法

Tests if the SqlGeometry instance is the same as the specified type.

命名空間：  Microsoft.SqlServer.Types
組件：  Microsoft.SqlServer.Types (在 Microsoft.SqlServer.Types.dll 中)

語法

'宣告
<SqlMethodAttribute(IsDeterministic := True, IsPrecise := True)> _
Public Function InstanceOf ( _
    geometryType As String _
) As SqlBoolean
'用途
Dim instance As SqlGeometry 
Dim geometryType As String 
Dim returnValue As SqlBoolean 

returnValue = instance.InstanceOf(geometryType)

[SqlMethodAttribute(IsDeterministic = true, IsPrecise = true)]
public SqlBoolean InstanceOf(
    string geometryType
)

[SqlMethodAttribute(IsDeterministic = true, IsPrecise = true)]
public:
SqlBoolean InstanceOf(
    String^ geometryType
)

[<SqlMethodAttribute(IsDeterministic = true, IsPrecise = true)>]
member InstanceOf : 
        geometryType:string -> SqlBoolean

public function InstanceOf(
    geometryType : String
) : SqlBoolean

參數

傳回值

型別：System.Data.SqlTypes.SqlBoolean
A SqlBoolean value indicating if the calling SqlGeometry is of the specified geometry type. Returns true if the type of a SqlGeometry instance is the same as the specified type, or if the specified type is an ancestor of the instance type. Otherwise, returns false.

備註

The input for the method must be one of the following: Geometry, Point, Curve, LineString, Surface, Polygon, GeometryCollection, MultiSurface, MultiPolygon, MultiCurve, MultiLineString, and MultiPoint. This method throws an ArgumentException if any other strings are used for the input.

請參閱

參考

SqlGeometry 類別

Microsoft.SqlServer.Types 命名空間

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