<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html >
<head id="Head1" runat="server">
<title>Sample</title>
</head>
<body>
<form id="form1" runat="server">
<asp:ScriptManager runat="server" ID="ScriptManager1">
</asp:ScriptManager>
<script type="text/javascript">
// Register classes to test.
Type.registerNamespace('Samples');
Samples.A = function()
{
// Initialize as a base class.
Samples.A.initializeBase(this);
}
Samples.B = function(){}
Samples.C = function(){}
Samples.A.registerClass('Samples.A');
Samples.B.registerClass('Samples.B', Samples.A);
Samples.C.registerClass('Samples.C');
var isDerived;
isDerived = Samples.B.inheritsFrom(Samples.A);
// Output: "true".
alert(isDerived);
isDerived = Samples.C.inheritsFrom(Samples.A);
// Output: "false".
alert(isDerived);
</script>
</form>
</body>
</html>