DbSpatialServices.GeographyMultiLineFromText 方法

[本页针对的是实体框架版本 6。最新版本以“实体框架”NuGet 包的形式提供。有关实体框架的更多信息,请参见 msdn.com/data/ef。]

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

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

语法

声明
<SuppressMessageAttribute("Microsoft.Naming", "CA1702:CompoundWordsShouldBeCasedCorrectly", MessageId := "multiLine",  _
    Justification := "Match OGC, EDM")> _
<SuppressMessageAttribute("Microsoft.Naming", "CA1702:CompoundWordsShouldBeCasedCorrectly", MessageId := "MultiLine",  _
    Justification := "Match OGC, EDM")> _
<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 GeographyMultiLineFromText ( _
    multiLineWellKnownText As String, _
    coordinateSystemId As Integer _
) As DbGeography
用法
Dim instance As DbSpatialServices 
Dim multiLineWellKnownText As String 
Dim coordinateSystemId As Integer 
Dim returnValue As DbGeography 

returnValue = instance.GeographyMultiLineFromText(multiLineWellKnownText, _
    coordinateSystemId)
[SuppressMessageAttribute("Microsoft.Naming", "CA1702:CompoundWordsShouldBeCasedCorrectly", MessageId = "multiLine", 
    Justification = "Match OGC, EDM")]
[SuppressMessageAttribute("Microsoft.Naming", "CA1702:CompoundWordsShouldBeCasedCorrectly", MessageId = "MultiLine", 
    Justification = "Match OGC, EDM")]
[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 GeographyMultiLineFromText(
    string multiLineWellKnownText,
    int coordinateSystemId
)
[SuppressMessageAttribute(L"Microsoft.Naming", L"CA1702:CompoundWordsShouldBeCasedCorrectly", MessageId = L"multiLine", 
    Justification = L"Match OGC, EDM")]
[SuppressMessageAttribute(L"Microsoft.Naming", L"CA1702:CompoundWordsShouldBeCasedCorrectly", MessageId = L"MultiLine", 
    Justification = L"Match OGC, EDM")]
[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^ GeographyMultiLineFromText(
    String^ multiLineWellKnownText, 
    int coordinateSystemId
) abstract
[<SuppressMessageAttribute("Microsoft.Naming", "CA1702:CompoundWordsShouldBeCasedCorrectly", MessageId = "multiLine", 
    Justification = "Match OGC, EDM")>]
[<SuppressMessageAttribute("Microsoft.Naming", "CA1702:CompoundWordsShouldBeCasedCorrectly", MessageId = "MultiLine", 
    Justification = "Match OGC, EDM")>]
[<SuppressMessageAttribute("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Multi", 
    Justification = "Match OGC, EDM")>]
[<SuppressMessageAttribute("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "multi", 
    Justification = "Match OGC, EDM")>]
abstract GeographyMultiLineFromText : 
        multiLineWellKnownText:string * 
        coordinateSystemId:int -> DbGeography
public abstract function GeographyMultiLineFromText(
    multiLineWellKnownText : String, 
    coordinateSystemId : int
) : DbGeography

参数

  • multiLineWellKnownText
    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
DbGeography 多线值。

请参阅

参考

DbSpatialServices 类

System.Data.Entity.Spatial 命名空间