SpatialEdmFunctions.IsEmptySpatial(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 'IsEmptySpatial' function with the specified argument, which must have an Edm.Geography or Edm.Geometry result type. The result type of the expression is Edm.Boolean.

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

Parameters

spatialValue
DbExpression

An expression that specifies the spatial value from which the IsEmptySptiaal value should be retrieved.

Returns

DbFunctionExpression

A new DbFunctionExpression that returns a Boolean value indicating whether spatialValue is empty.

Applies to