TemplateInstanceAttribute.Instances 属性
定义
重要
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获取当前模板实例表示的 TemplateInstance 枚举值。
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
属性值
当前模板实例表示的 TemplateInstance 枚举值。
示例
下面的代码示例演示如何使用 Instances 属性。 在 Page_Load
ASPX 页中, MyLoginViewA
将查询 属性的 TemplateInstanceAttribute 自定义控件类 AnonymousTemplate
。
有关控件的定义 MyLoginViewA
,请参阅 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
注解
适用于
另请参阅
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