SpatialEdmFunctions.GeographyCollectionFromText 方法

定义

命名空间:: System.Data.Common.CommandTrees.ExpressionBuilder.Spatial

程序集:: System.Data.Entity.dll

重要

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创建一个 DbFunctionExpression 使用指定参数调用规范的“GeographyCollectionFromText”函数。 geographyCollectionWellKnownText 必须具有字符串结果类型，而 coordinateSystemId 必须具有整数数值结果类型。表达式的结果类型为 Edm.Geography。

public:
 static System::Data::Common::CommandTrees::DbFunctionExpression ^ GeographyCollectionFromText(System::Data::Common::CommandTrees::DbExpression ^ geographyCollectionWellKnownText, System::Data::Common::CommandTrees::DbExpression ^ coordinateSystemId);

public static System.Data.Common.CommandTrees.DbFunctionExpression GeographyCollectionFromText(System.Data.Common.CommandTrees.DbExpression geographyCollectionWellKnownText, System.Data.Common.CommandTrees.DbExpression coordinateSystemId);

static member GeographyCollectionFromText : System.Data.Common.CommandTrees.DbExpression * System.Data.Common.CommandTrees.DbExpression -> System.Data.Common.CommandTrees.DbFunctionExpression

Public Function GeographyCollectionFromText (geographyCollectionWellKnownText As DbExpression, coordinateSystemId As DbExpression) As DbFunctionExpression