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)

System.Object
  System.Web.UI.Triplet

[SerializableAttribute]
public sealed class Triplet

NameDescription
System_CAPS_pubmethodTriplet()

Initializes a new instance of the Triplet class.

System_CAPS_pubmethodTriplet(Object, Object)

Initializes a new instance of the Triplet class and sets the first two objects.

System_CAPS_pubmethodTriplet(Object, Object, Object)

Initializes a new instance of the Triplet class with the provided three objects.

NameDescription
System_CAPS_pubmethodEquals(Object)

Determines whether the specified object is equal to the current object.(Inherited from Object.)

System_CAPS_pubmethodGetHashCode()

Serves as the default hash function. (Inherited from Object.)

System_CAPS_pubmethodGetType()

Gets the Type of the current instance.(Inherited from Object.)

System_CAPS_pubmethodToString()

Returns a string that represents the current object.(Inherited from Object.)

NameDescription
System_CAPS_pubfieldFirst

Gets or sets the first object of the triplet.

System_CAPS_pubfieldSecond

Gets or sets the second object of the triplet.

System_CAPS_pubfieldThird

Gets or sets the third object of the triplet.

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.

System_CAPS_noteNote

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>

.NET Framework
Available since 1.1

Any public static ( Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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