OnClientClick和OnClick的用法比較
<head runat="server">
<title>無標題頁</title>
<script language="javascript">
function check()
{
var email = document.getElementById('TextBox1');
var pwd = document.getElementById('TextBox2');
if (email.value=="" || pwd.value=="")
{
alert("請填寫完整內容");
return false;
}
else
{
var mailStr = /(("w)+)@(("w)+).[cc|com|net|org|tv|cn]/ig;
if (!mailStr.exec(email.value))
{
alert('Email地址書寫不正確!"n請您重新輸入!');
email.value = '';
email.focus();
return false;
}
}
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
<asp:TextBox ID="TextBox2" runat="server"></asp:TextBox>
<asp:Button ID="Button1" runat="server" Text="Button" OnClientClick="return check();" OnClick="Button1_Click1" />
</div>
</form>
</body>
先執行用戶端的javascript函數，頁面回送以後再執行伺服器端的方法
onclientclick是用戶端事件，onclick是伺服器端事件。並且用戶端事件先執行，伺服器端事件後執行。
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