通过

DbSpatialServices.GeographyMultiPolygonFromText 方法

  • 项目

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基于指定的已知文本值和坐标系标识符，创建一个新的 DbGeography 多多边形值。

命名空间：  System.Data.Entity.Spatial
程序集：  EntityFramework（在 EntityFramework.dll 中）

语法

声明
<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
用法
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

参数

  • multiPolygonKnownText
    类型：System.String
    已知的文本值。
  • coordinateSystemId
    类型：System.Int32
    坐标系标识符。

返回值

类型：System.Data.Entity.Spatial.DbGeography
新 DbGeography 多边形值。

请参阅

参考

DbSpatialServices 类

System.Data.Entity.Spatial 命名空间