使用jquery做的登录
<table style="border:solid 1px #EDEDED;height:112px;width:211px;left: 463px; top: 257px; text-align: center;">
<tr>
<td>
<table id="tblLogin" border="0" cellpadding="0" style="border-collapse: collapse" width="100%">
<tr>
<td style="width: 62px; text-align: center; height: 37px; padding-top: 5px;">
用户名:</td>
<td>
<asp:TextBox ID="tbUser" CssClass="tb20" runat="server" Font-Size="0.8em" MaxLength="20"
Style="font-size: 12px" Width="120px"></asp:TextBox>
</td>
</tr>
<tr>
<td style="width: 62px; text-align: center; padding-top: 5px;">
密 码:</td>
<td>
<asp:TextBox ID="tbPass" CssClass="tb20" runat="server" Font-Size="0.8em" MaxLength="20"
Style="font-size: 12px" TextMode="Password" Width="120px"></asp:TextBox>
</td>
</tr>
<tr>
<td colspan="2" style="text-align: center;padding:5px;">
<input type="button" id="btnLogin" class="btn5" value=" 登 录 " onclick="return login();"/></td>
</tr>
</table>
<div id="msg" style="color:#f00;font-weight:bold;height:15px;"></div>
</td>
</tr>
</table>
<script type="text/javascript" language="javascript">
<!--
$("#<%=tbUser.ClientID %>").focus();
function login()
{
var u = $("#<%=tbUser.ClientID %>").val();
var p = $("#<%=tbPass.ClientID %>").val();
$.ajax({
// 定义是post传递
type:"POST",
// 要传值到的aciton
url:"Login.aspx",
// 跟上要传的参数名和值
data:"t=login&u="+u+"&p="+p,
//当ajax发生错误的时候
error:function () {
alert("error");
},
//当ajax成功的时候
success:function (msg) {
var a = msg.substring(0, 1);
var b = msg.substring(2, msg.length);
if (a == "1") {
$("#msg").html(b);
$("#tblLogin").css({"display":"none"});
window.top.location.href = "default.aspx";
}
else{
$("#msg").html(b);
$("#btnLogin").removeAttr("disabled");
$("#<%=tbUser.ClientID %>").focus();
}
}
});
}
document.onkeydown=function(event){
e = event ? event :(window.event ? window.event : null);
if(e.keyCode==13){
$("#msg").html("正在登录 ……");
$("#btnLogin").focus();
$("#btnLogin").attr("disabled", true);
login();
}
}
//-->
</script>
后台代码返回字符串格式为string.Format("0,{0}", "用户名不能为空!");