TemplateInstanceAttribute.Instances Propriedade

Definição

Namespace:

System.Web.UI

Assembly:

System.Web.dll

Obtém o valor de enumeração TemplateInstance que a instância atual do modelo representa.

public:
 property System::Web::UI::TemplateInstance Instances { System::Web::UI::TemplateInstance get(); };

public System.Web.UI.TemplateInstance Instances { get; }

member this.Instances : System.Web.UI.TemplateInstance

Public ReadOnly Property Instances As TemplateInstance

Valor da propriedade

TemplateInstance

Um TemplateInstance valor de enumeração que a instância de modelo atual representa.

Exemplos

O exemplo de código a seguir demonstra como usar a Instances propriedade . Page_Load No caso de uma página ASPX, a MyLoginViewA classe do TemplateInstanceAttribute controle personalizado para a AnonymousTemplate propriedade é consultada.

Para obter a definição de MyLoginViewA controle, consulte TemplateInstanceAttribute.

protected void Page_Load(object sender, EventArgs e)
{
      
  // Get the class type for which to access metadata.
  Type clsType = typeof(MyLoginViewA);
  // Get the PropertyInfo object for FirstTemplate.
  PropertyInfo pInfo = clsType.GetProperty("AnonymousTemplate");
  // See if the TemplateInstanceAttribute is defined for this property.
  bool isDef = Attribute.IsDefined(pInfo, typeof(TemplateInstanceAttribute));

  // Display the result if the attribute exists.
  if (isDef)
  {
    TemplateInstanceAttribute tia =
      (TemplateInstanceAttribute)Attribute.GetCustomAttribute(pInfo, typeof(TemplateInstanceAttribute));
    Response.Write("The <AnonymousTemplate> has the TemplateInstanceAttribute = " + tia.Instances.ToString() + ".<br />");
    if (tia.IsDefaultAttribute())
      Response.Write("The TemplateInstanceAttribute used is the same as the default instance.");
    else
      Response.Write("The TemplateInstanceAttribute used is not the same as the default instance.");
  }

}

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs)
  
  ' Get the class type for which to access metadata.
  Dim clsType As Type = GetType(MyLoginViewA)
  ' Get the PropertyInfo object for FirstTemplate.
  Dim pInfo As PropertyInfo = clsType.GetProperty("AnonymousTemplate")
  ' See if the TemplateInstanceAttribute is defined for this property.
  Dim isDef As Boolean = Attribute.IsDefined(pInfo, GetType(TemplateContainerAttribute))
  
  ' Display the result if the attribute exists.
  If isDef Then
    Dim tia As TemplateInstanceAttribute = CType(Attribute.GetCustomAttribute(pInfo, GetType(TemplateInstanceAttribute)), TemplateInstanceAttribute)
    Response.Write("The <AnonymousTemplate> has the TemplateInstanceAttribute = " & tia.Instances.ToString() & ".<br />")
    If (tia.IsDefaultAttribute()) Then
      Response.Write("The TemplateInstanceAttribute used is the same as the default instance.")
    Else
      Response.Write("The TemplateInstanceAttribute used is not the same as the default instance.")
    End If

  End If

End Sub

Comentários

Os valores possíveis são o Single campo ou o Multiple campo .

Confira também

• TemplateInstance