SpatialEdmFunctions.SpatialUnion Method (DbExpression, DbExpression)

.NET Framework (current version)
 

Creates a DbFunctionExpression that invokes the canonical 'SpatialUnion' function with the specified arguments, which must each have an Edm.Geography or Edm.Geometry result type. The result type of spatialValue1 must match the result type of spatialValue2. The result type of the expression is the same as the type of spatialValue1 and spatialValue2.

Namespace:   System.Data.Common.CommandTrees.ExpressionBuilder.Spatial
Assembly:  System.Data.Entity (in System.Data.Entity.dll)

public static DbFunctionExpression SpatialUnion(
	this DbExpression spatialValue1,
	DbExpression spatialValue2
)

Parameters

spatialValue1
Type: System.Data.Common.CommandTrees.DbExpression

An expression that specifies the first spatial value.

spatialValue2
Type: System.Data.Common.CommandTrees.DbExpression

An expression that specifies the spatial value for which the union with spatialValue1 should be computed.

Return Value

Type: System.Data.Common.CommandTrees.DbFunctionExpression

A new DbFunctionExpression that returns the spatial value representing the union of spatialValue1 and spatialValue2.

Exception Condition
ArgumentNullException

spatialValue1spatialValue2

ArgumentException

spatialValue1spatialValue2

.NET Framework
Available since 4.5
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