ObjectParameter.ParameterType Propriedade

Definição

Obtém o tipo de parâmetro.Gets the parameter type.

public:
 property Type ^ ParameterType { Type ^ get(); };
public Type ParameterType { get; }
member this.ParameterType : Type
Public ReadOnly Property ParameterType As Type

Valor da propriedade

Type

O Type do parâmetro.The Type of the parameter.

Exemplos

O exemplo neste tópico é baseado no Microsoft SQL Server exemplos de produto: banco de dados.The example in this topic is based on the Microsoft SQL Server Product Samples: Database. O exemplo adiciona novos parâmetros à coleção.The example adds new parameters to the collection. Ele itera através de ObjectParameterCollection e exibe o nome, o tipo e o valor de cada parâmetro na coleção.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);
    }
}
Using context As New AdventureWorksEntities()
    Dim queryString As String = "SELECT VALUE contact FROM AdventureWorksEntities.Contacts" & _
            " AS contact WHERE contact.LastName = @ln AND contact.FirstName = @fn"

    Dim contactQuery As New ObjectQuery(Of Contact)(queryString, context)

    ' Add parameters to the collection. 
    contactQuery.Parameters.Add(New ObjectParameter("ln", "Adams"))
    contactQuery.Parameters.Add(New ObjectParameter("fn", "Frances"))

    Dim objectParameterCollection As ObjectParameterCollection = contactQuery.Parameters

    ' Iterate through the ObjectParameterCollection. 
    For Each result As ObjectParameter In objectParameterCollection
        Console.WriteLine("{0} {1} {2}", result.Name, result.Value, result.ParameterType)
    Next
End Using

Comentários

O tipo de parâmetro só pode ser definido por meio de um construtor.The parameter type can only be set through a constructor.

Aplica-se a