DbSpatialServices.GeographyMultiPolygonFromText 方法
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根據指定的已知文字值和座標系統識別項，建立新的 DbGeography 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 GeographyMultiPolygonFromText ( _
multiPolygonKnownText As String, _
coordinateSystemId As Integer _
) As DbGeography
'用途
Dim instance As DbSpatialServices
Dim multiPolygonKnownText As String
Dim coordinateSystemId As Integer
Dim returnValue As DbGeography
returnValue = instance.GeographyMultiPolygonFromText(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 DbGeography GeographyMultiPolygonFromText(
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 DbGeography^ GeographyMultiPolygonFromText(
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 GeographyMultiPolygonFromText :
multiPolygonKnownText:string *
coordinateSystemId:int -> DbGeography
public abstract function GeographyMultiPolygonFromText(
multiPolygonKnownText : String,
coordinateSystemId : int
) : DbGeography
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.DbGeography
新的 DbGeography 多多邊形值。