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TemplateInstanceAttribute.Instances Property

The TemplateInstance enumeration value that the current template instance represents.

Namespace:  System.Web.UI
Assembly:  System.Web (in System.Web.dll)

public TemplateInstance Instances { get; }

The possible values are either the Single field or the Multiple field.

The following code example demonstrates how to use the Instances property. In the Page_Load event of an ASPX page, the MyLoginViewA custom control's TemplateInstanceAttribute class for the AnonymousTemplate property is queried.

For the definition of MyLoginViewA control, see 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.");
      Response.Write("The TemplateInstanceAttribute used is not the same as the default instance.");


.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.