1.
在子页面的登录外面包一个asp:panel, 然后给这个panel加上defaultButton就可以了.
=============
其实不需要这个 panel， 直接设置模板页的 HtmlForm.DefaultButton
2.
DEMO
// .master
<%@ Master 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 Button1_Click(object sender, EventArgs e)
{
Response.Write("Login from master page");
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>Untitled Page</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<div style="float:right;">
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
<asp:TextBox ID="TextBox2" runat="server"></asp:TextBox>
<asp:Button ID="Button1" runat="server" Text="Login from master page" OnClick="Button1_Click" />
</div>
<br />
<br />
<hr width="100%" />
<asp:contentplaceholder id="ContentPlaceHolder1" runat="server">
</asp:contentplaceholder>
</div>
</form>
</body>
</html>
// login.aspx
<%@ Page Language="C#" MasterPageFile="~/JSSample/DefaultSubmitButton/MasterPage.master" Title="Untitled Page" %>
<script runat="server">
protected void Button1_Click(object sender, EventArgs e)
{
Response.Write("Login from login page");
}
protected void Page_Load(object sender, EventArgs e)
{
if (Master != null) {
Master.Page.Form.DefaultButton = Button1.UniqueID;
}
}
</script>
<asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
<asp:TextBox ID="TextBox2" runat="server"></asp:TextBox>
<asp:Button ID="Button1" runat="server" Text="Login from login page" OnClick="Button1_Click" />
</asp:Content>
3.
但是这样又有一个问题， 当用户确实在那个 Master 里面的登录区输入时，敲回车依然触发的时login.aspx 页面的，因此，还是只有自己脚本控制
// login2.apsx
<%@ Page Language="C#" MasterPageFile="~/JSSample/DefaultSubmitButton/MasterPage.master" Title="Untitled Page" %>
<script runat="server">
protected void Button1_Click(object sender, EventArgs e)
{
Response.Write("Login from login page");
}
</script>
<asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">
<script type="text/javascript">
<!--
document.onkeydown = function() {
//alert("u pressed a key");
var src = event.srcElement;
var key = event.keyCode;
var target;
if(key == 13) {
if(src.id.indexOf("ContentPlaceHolder1") > -1) {
target = document.getElementById("<%= Button1.ClientID %>");// 当前页登录按钮客户端 ID
}
else {
target = document.getElementById("ctl00_Button1"); // 模板页登录按钮客户端 ID
}
//alert("ready to submit....");
target.click();
event.cancelBubble = true;
event.returnValue = false;
}
}
// -->
</script>
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
<asp:TextBox ID="TextBox2" runat="server"></asp:TextBox>
<asp:Button ID="Button1" runat="server" Text="Login from login page" OnClick="Button1_Click" />
</asp:Content>
