SpatialEdmFunctions.ExteriorRing(DbExpression) Method

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Definition

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

Creates a DbFunctionExpression that invokes the canonical 'ExteriorRing' function with the specified argument, which must have an Edm.Geometry result type. The result type of the expression is Edm.Geometry.

public static System.Data.Entity.Core.Common.CommandTrees.DbFunctionExpression ExteriorRing (this System.Data.Entity.Core.Common.CommandTrees.DbExpression geometryValue);
static member ExteriorRing : System.Data.Entity.Core.Common.CommandTrees.DbExpression -> System.Data.Entity.Core.Common.CommandTrees.DbFunctionExpression
<Extension()>
Public Function ExteriorRing (geometryValue As DbExpression) As DbFunctionExpression

Parameters

geometryValue
DbExpression

The geometry value.

Returns

DbFunctionExpression

A new DbFunctionExpression that returns either the exterior ring of the polygon geometryValue or null if geometryValue is not a polygon.

Applies to