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SpatialEdmFunctions.GeographyPolygonFromText Method

  • Reference

Definition

Namespace:
System.Data.Entity.Core.Common.CommandTrees.ExpressionBuilder.Spatial
Assembly:
EntityFramework.dll

Creates a DbFunctionExpression that invokes the canonical 'GeographyPolygonFromText' function with the specified arguments. polygonWellKnownText must have a string result type, while coordinateSystemId must have an integer numeric result type. The result type of the expression is Edm.Geography.

public static System.Data.Entity.Core.Common.CommandTrees.DbFunctionExpression GeographyPolygonFromText (System.Data.Entity.Core.Common.CommandTrees.DbExpression polygonWellKnownText, System.Data.Entity.Core.Common.CommandTrees.DbExpression coordinateSystemId);
static member GeographyPolygonFromText : System.Data.Entity.Core.Common.CommandTrees.DbExpression * System.Data.Entity.Core.Common.CommandTrees.DbExpression -> System.Data.Entity.Core.Common.CommandTrees.DbFunctionExpression
Public Function GeographyPolygonFromText (polygonWellKnownText As DbExpression, coordinateSystemId As DbExpression) As DbFunctionExpression

Parameters

polygonWellKnownText
DbExpression

An expression that provides the well known text representation of the geography polygon value.

coordinateSystemId
DbExpression

An expression that provides the coordinate system id (SRID) of the geography polygon value's coordinate system.

Returns

DbFunctionExpression

A new DbFunctionExpression that returns a new geography polygon value based on the specified values.

Applies to