SpatialEdmFunctions.GeographyPointFromText(DbExpression, DbExpression) 方法

定義

建立 DbFunctionExpression 一個,能呼叫典型的「GeographyPointFromText」函式,並使用指定的參數。

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

參數

pointWellKnownText
DbExpression

一個表達式,提供地理點值的知名文字表示。

coordinateSystemId
DbExpression

一個表達式,提供地理點值的座標系 WellKnownTextValue 的座標系 ID(SRID)。

傳回

典型的「GeographyPointFromText」函式。

適用於