javascript全選或全取消頁面中的CheckBox

來源:互聯網
上載者:User
<%@ Page Language="C#" AutoEventWireup="true"  CodeFile="Default.aspx.cs" Inherits="_Default" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title>無標題頁</title>
    <script type="text/javascript">
        function CheckAll(obj){
            var form = document.getElementById("form1");
            if(obj.checked){
                for(var i=0;i<form.elements.length;i++){
                    if(form.elements[i].type == "checkbox"){
                        form.elements[i].checked = true;
                    }
                }
            }
            else{
                for(var i=0;i<form.elements.length;i++){
                    if(form.elements[i].type == "checkbox"){
                        form.elements[i].checked = false;
                    }
                }
            }
            
        }
    </script>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:CheckBox ID="CheckBox1" runat="server" onclick="CheckAll(this)" />全選<br/>
        
        <asp:CheckBox ID="CheckBox2" runat="server" /><br/>
        <asp:CheckBox ID="CheckBox3" runat="server" /><br/>
        <asp:CheckBox ID="CheckBox4" runat="server" /><br/>
        <asp:CheckBox ID="CheckBox5" runat="server" /><br/>
        <asp:CheckBox ID="CheckBox6" runat="server" /><br/>
    </div>
    </form>
</body>
</html>

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