TemplateInstanceAttribute.Instances 屬性

定義

命名空間:

System.Web.UI

組件:

System.Web.dll

取得目前樣板執行個體表示的 TemplateInstance 列舉值。

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

屬性值

TemplateInstance

目前範本執行個體所表示的 TemplateInstance 列舉值。

範例

下列程式碼範例示範如何使用 Instances 屬性。 Page_Load在 ASPX 頁面的事件中，會 MyLoginViewA 查詢屬性的 TemplateInstanceAttribute 自訂控制項類別 AnonymousTemplate 。

如需控制項的定義 MyLoginViewA ，請參閱 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

備註

可能的值為 Single 欄位或 Multiple 欄位。

另請參閱

• TemplateInstance