探討 JavaScript 的枚舉功能

來源:互聯網
上載者:User

由於 Microsoft AJAX Library 對於 JavaScript 進行了大幅擴充,

枚舉這個常用的功能當然也被加進去了,

本次就是來探討 JavaScript 的枚舉功能。

由於範例很簡單,

所以直接看 HTML 標籤就 OK 了

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
</head>
<body>
    <form id="form1" runat="server">
    <asp:ScriptManager ID="ScriptManager1" runat="server">
    </asp:ScriptManager>

    <script language="javascript" type="text/javascript">
        Type.registerNamespace("BaoBeiMe");
        //註冊一個枚舉
        BaoBeiMe.EnumDepartment = function() {

        }
        BaoBeiMe.EnumDepartment.prototype = {
            One: "資訊部",
            Two: "業務部",
            Three: "財務部",
            Four: "研發部"
        }
        BaoBeiMe.EnumDepartment.registerEnum("BaoBeiMe.EnumDepartment");

        function Button1_onclick() {
            var enumDepartment = new BaoBeiMe.EnumDepartment();
            var lblMsg = $get('<%=lblMsg.ClientID %>');
            lblMsg.innerText = "One 是 " + enumDepartment.One + "  ,       " +
                               "Two 是 " + enumDepartment.Two + "  ,       " +
                               "Three 是 " + enumDepartment.Three + "  ,       " +
                               "Four 是 " + enumDepartment.Four + "       ";
        }

    </script>

    <div>
        <input id="Button1" type="button" value="擷取所以枚舉值"

               onclick="return Button1_onclick()" /><br />
        <br />
        <asp:Label ID="lblMsg" runat="server" Text=""></asp:Label>
    </div>
    </form>
</body>
</html>

結果

 

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