Triplet Class
Provides a basic utility class that is used to store three related objects.
Namespace: System.Web.UI
Assembly: System.Web (in System.Web.dll)
The Triplet type exposes the following members.
| Name | Description | |
|---|---|---|
 | Triplet() | Initializes a new instance of the Triplet class. |
| Triplet(Object, Object) | Initializes a new instance of the Triplet class and sets the first two objects. |
| Triplet(Object, Object, Object) | Initializes a new instance of the Triplet class with the provided three objects. |
| Name | Description | |
|---|---|---|
| Equals(Object) | Determines whether the specified object is equal to the current object. (Inherited from Object.) |
| GetHashCode | Serves as a hash function for a particular type. (Inherited from Object.) |
| GetType | Gets the Type of the current instance. (Inherited from Object.) |
| ToString | Returns a string that represents the current object. (Inherited from Object.) |
The Triplet class is used as a basic structure to store three related objects. It is a utility class that is used in various ways throughout ASP.NET. You can use the Triplet class in your own code anywhere that you need a structure to contain three related objects and where data-hiding is not essential. The Triplet class does not encapsulate its object references, First, Second, and Third, in properties; it exposes them directly to all calling code as public class fields.
The following example uses a Triplet object to hold three integer values and another Triplet to hold three label controls.
| Note |
|---|
When accessing reference types as members of a Triplet, only generic Object methods are available for that member. |
<%@ Page Language="C#" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <script runat="server"> protected void Page_Load(object sender, EventArgs e) { Triplet circle = new Triplet(5, 7, 3); lblCircle.Text = "X position: " + circle.First + "<br />Y position: " + circle.Second + "<br />Radius: " + circle.Third; Triplet labels = new Triplet(Label1, Label2, Label3); Label1.Text = "Type: " + labels.First.GetType().ToString(); Label2.Text = "ToString: " + labels.Second.ToString(); Label3.Text = "HashCode: " + labels.Third.GetHashCode(); } </script> <html xmlns="http://www.w3.org/1999/xhtml" > <head runat="server"> <title>Triplet Example</title> </head> <body> <form id="form1" runat="server"> <div> <h3>Circle Dimensions</h3> <asp:Label ID="lblCircle" runat="server" /><br /><br /> <h3>Labels Within a Triplet</h3> Note that only object methods are available to members of a triplet regardless of type.<br /> <asp:Label ID="Label1" runat="server" /><br /> <asp:Label ID="Label2" runat="server" /><br /> <asp:Label ID="Label3" runat="server" /></div> </form> </body> </html>
Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
