ObjectQuery<T>.Execute Method (MergeOption)


Executes the object query with the specified merge option.

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

public ObjectResult<T> Execute(
	MergeOption mergeOption


Type: System.Data.Objects.MergeOption

The MergeOption to use when executing the query. The default is AppendOnly.

Return Value

Type: System.Data.Objects.ObjectResult<T>

An ObjectResult<T> that contains a collection of entity objects returned by the query.

The default merge option for object queries is AppendOnly. For more information, see Identity Resolution, State Management, and Change Tracking.

This example is based on the AdventureWorks Sales Model. The example returns an ObjectResult<T> from Execute method. Then it gets an enumerator and iterates through the query results. At the end it releases the enumerator and the ObjectResult<T> object.

using (AdventureWorksEntities context =
    new AdventureWorksEntities())
    ObjectSet<Product> query = context.Products;
    ObjectResult<Product> queryResults = null;

    System.Collections.IEnumerator enumerator = null;
        queryResults = query.Execute(MergeOption.AppendOnly);

        // Get the enumerator.
        enumerator = ((System.Collections.IEnumerable)queryResults).GetEnumerator();

        // Iterate through the query results.
        while (enumerator.MoveNext())
            Product product = (Product)enumerator.Current;
            Console.WriteLine("{0}", product.Name);
        // Dispose the enumerator
        // Dispose the query results and the enumerator.
        if (queryResults != null)
        if (enumerator != null)

.NET Framework
Available since 3.5
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