DbSpatialServices.GeographyFromBinary 方法 (Byte[], Int32)
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根據指定的已知二進位值和座標系統識別項 (SRID)，建立新的 DbGeography 值。
命名空間： System.Data.Entity.Spatial
組件： EntityFramework (在 EntityFramework.dll 中)
語法
'宣告
Public MustOverride Function GeographyFromBinary ( _
wellKnownBinary As Byte(), _
coordinateSystemId As Integer _
) As DbGeography
'用途
Dim instance As DbSpatialServices
Dim wellKnownBinary As Byte()
Dim coordinateSystemId As Integer
Dim returnValue As DbGeography
returnValue = instance.GeographyFromBinary(wellKnownBinary, _
coordinateSystemId)
public abstract DbGeography GeographyFromBinary(
byte[] wellKnownBinary,
int coordinateSystemId
)
public:
virtual DbGeography^ GeographyFromBinary(
array<unsigned char>^ wellKnownBinary,
int coordinateSystemId
) abstract
abstract GeographyFromBinary :
wellKnownBinary:byte[] *
coordinateSystemId:int -> DbGeography
public abstract function GeographyFromBinary(
wellKnownBinary : byte[],
coordinateSystemId : int
) : DbGeography
參數
- wellKnownBinary
類型：System.Byte[]
包含地理位置值的已知二進位表示法的位元組陣列。
- coordinateSystemId
類型：System.Int32
新的 DbGeography 值應該使用的座標系統的識別項。
傳回值
類型：System.Data.Entity.Spatial.DbGeography
新的 DbGeography 值，由具有指定的座標系統識別項 (SRID) (DefaultCoordinateSystemId) 的已知二進位值所定義。