ObjectQuery<T>.Union Method (ObjectQuery<T>)

 

This query-builder method creates a new query whose results are all of the results of this query, plus all of the results of the other query, without duplicates (i.e., results are unique).

Namespace:   System.Data.Entity.Core.Objects
Assembly:  EntityFramework (in EntityFramework.dll)

public ObjectQuery<T> Union(
	ObjectQuery<T> query
)

Parameters

query
Type: System.Data.Entity.Core.Objects.ObjectQuery<T>

A query representing the results to add.

Return Value

Type: System.Data.Entity.Core.Objects.ObjectQuery<T>

a new ObjectQuery instance.

Exception Condition
ArgumentNullException

If the query parameter is null.