ObjectParameter.ParameterType Property

Definition

Namespace:

System.Data.Objects

Assembly:

System.Data.Entity.dll

Gets the parameter type.

public:
 property Type ^ ParameterType { Type ^ get(); };

public Type ParameterType { get; }

member this.ParameterType : Type

Public ReadOnly Property ParameterType As Type

Property Value

Type

The Type of the parameter.

Examples

This example adds new parameters to the collection. It iterates through the ObjectParameterCollection and displays the name, type, and value of each parameter in the collection.

using (AdventureWorksEntities context =
    new AdventureWorksEntities())
{
    string queryString =
        @"SELECT VALUE contact FROM AdventureWorksEntities.Contacts
        AS contact WHERE contact.LastName = @ln
        AND contact.FirstName = @fn";

    ObjectQuery<Contact> contactQuery =
        new ObjectQuery<Contact>(queryString, context);

    // Add parameters to the collection.
    contactQuery.Parameters.Add(new ObjectParameter("ln", "Adams"));
    contactQuery.Parameters.Add(new ObjectParameter("fn", "Frances"));

    ObjectParameterCollection objectParameterCollection =
        contactQuery.Parameters;

    // Iterate through the ObjectParameterCollection.
    foreach (ObjectParameter result in objectParameterCollection)
    {
        Console.WriteLine("{0} {1} {2}", result.Name,
            result.Value,
            result.ParameterType);
    }
}

Remarks

The parameter type can only be set through a constructor.

See also

• Querying Data as Objects and Shaping Results (Entity Framework)