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Triplet Class

  • Reference

Definition

Namespace:
System.Web.UI
Assembly:
System.Web.dll

Provides a basic utility class that is used to store three related objects.

public ref class Triplet
public ref class Triplet sealed
public class Triplet
[System.Serializable]
public sealed class Triplet
type Triplet = class
[<System.Serializable>]
type Triplet = class
Public Class Triplet
Public NotInheritable Class Triplet
Inheritance
Object
Triplet
Attributes
SerializableAttribute

Examples

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>

<%@ Page Language="VB" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs)
        Dim circle As New Triplet(5, 7, 3)
        lblCircle.Text = "X position: " & circle.First & _
            "<br />Y position: " & circle.Second & _
            "<br />Radius: " & circle.Third

        Dim labels As New Triplet(Label1, Label2, Label3)
        Label1.Text = "Type: " & labels.First.GetType().ToString()
        Label2.Text = "ToString: " & labels.Second.ToString()
        Label3.Text = "HashCode: " & labels.Third.GetHashCode()
    End Sub
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" 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>

Remarks

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.

Constructors

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.

Fields

First

Gets or sets the first object of the triplet.
Second

Gets or sets the second object of the triplet.
Third

Gets or sets the third object of the triplet.

Methods

Equals(Object)

Determines whether the specified object is equal to the current object.

(Inherited from Object)
GetHashCode()

Serves as the default hash function.

(Inherited from Object)
GetType()

Gets the Type of the current instance.

(Inherited from Object)
MemberwiseClone()

Creates a shallow copy of the current Object.

(Inherited from Object)
ToString()

Returns a string that represents the current object.

(Inherited from Object)

Applies to