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SpatialEdmFunctions.GeographyPointFromText(DbExpression, DbExpression) Metode

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Definisi

Ruang nama:
System.Data.Common.CommandTrees.ExpressionBuilder.Spatial
Rakitan:
System.Data.Entity.dll

DbFunctionExpression Membuat yang memanggil fungsi 'GeographyPointFromText' kanonis dengan argumen yang ditentukan.

public:
 static System::Data::Common::CommandTrees::DbFunctionExpression ^ GeographyPointFromText(System::Data::Common::CommandTrees::DbExpression ^ pointWellKnownText, System::Data::Common::CommandTrees::DbExpression ^ coordinateSystemId);
public static System.Data.Common.CommandTrees.DbFunctionExpression GeographyPointFromText (System.Data.Common.CommandTrees.DbExpression pointWellKnownText, System.Data.Common.CommandTrees.DbExpression coordinateSystemId);
static member GeographyPointFromText : System.Data.Common.CommandTrees.DbExpression * System.Data.Common.CommandTrees.DbExpression -> System.Data.Common.CommandTrees.DbFunctionExpression
Public Function GeographyPointFromText (pointWellKnownText As DbExpression, coordinateSystemId As DbExpression) As DbFunctionExpression

Parameter

pointWellKnownText
DbExpression

Ekspresi yang menyediakan representasi teks terkenal dari nilai titik geografi.

coordinateSystemId
DbExpression

Ekspresi yang menyediakan id sistem koordinat (SRID) dari systempoint koordinat nilai titik geografiWellKnownTextValue.

Mengembalikan

DbFunctionExpression

Fungsi 'GeographyPointFromText' kanonis.

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