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DbSpatialServices.GeometryMultiPolygonFromText 方法

[此頁面專屬於 Entity Framework 第 6 版。最新版本可從 'Entity Framework' NuGet 套件取得。如需 Entity Framework 的詳細資訊,請參閱 msdn.com/data/ef。]

根據指定的已知文字值和座標系統識別項,建立新的 DbGeometry 多多邊形值。

命名空間:  System.Data.Entity.Spatial
組件:  EntityFramework (在 EntityFramework.dll 中)

語法

'宣告
<SuppressMessageAttribute("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId := "Multi",  _
    Justification := "Match OGC, EDM")> _
<SuppressMessageAttribute("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId := "multi",  _
    Justification := "Match OGC, EDM")> _
Public MustOverride Function GeometryMultiPolygonFromText ( _
    multiPolygonKnownText As String, _
    coordinateSystemId As Integer _
) As DbGeometry
'用途
Dim instance As DbSpatialServices 
Dim multiPolygonKnownText As String 
Dim coordinateSystemId As Integer 
Dim returnValue As DbGeometry 

returnValue = instance.GeometryMultiPolygonFromText(multiPolygonKnownText, _
    coordinateSystemId)
[SuppressMessageAttribute("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Multi", 
    Justification = "Match OGC, EDM")]
[SuppressMessageAttribute("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "multi", 
    Justification = "Match OGC, EDM")]
public abstract DbGeometry GeometryMultiPolygonFromText(
    string multiPolygonKnownText,
    int coordinateSystemId
)
[SuppressMessageAttribute(L"Microsoft.Naming", L"CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = L"Multi", 
    Justification = L"Match OGC, EDM")]
[SuppressMessageAttribute(L"Microsoft.Naming", L"CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = L"multi", 
    Justification = L"Match OGC, EDM")]
public:
virtual DbGeometry^ GeometryMultiPolygonFromText(
    String^ multiPolygonKnownText, 
    int coordinateSystemId
) abstract
[<SuppressMessageAttribute("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Multi", 
    Justification = "Match OGC, EDM")>]
[<SuppressMessageAttribute("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "multi", 
    Justification = "Match OGC, EDM")>]
abstract GeometryMultiPolygonFromText : 
        multiPolygonKnownText:string * 
        coordinateSystemId:int -> DbGeometry
public abstract function GeometryMultiPolygonFromText(
    multiPolygonKnownText : String, 
    coordinateSystemId : int
) : DbGeometry

參數

  • multiPolygonKnownText
    類型:System.String
    已知文字值。
  • coordinateSystemId
    類型:System.Int32
    座標系統識別項。

傳回值

類型:System.Data.Entity.Spatial.DbGeometry
新的 DbGeometry 多多邊形值。

請參閱

參考

DbSpatialServices 類別

System.Data.Entity.Spatial 命名空間