自定义的验证方法Remote

    jQuery.metadata.setType("attr", "validate");
var opts = null;
var isValidationGroup = false;

jQuery(document).ready(function () {
    InitRules();
    if (isValidationGroup) {
        if (opts != undefined || opts != null) {
            jQuery("#form1").validate(jQuery.extend(opts, {
                onsubmit: false
            }));
        } else {
            jQuery("#form1").validate({
                onsubmit: false
            });
        }
        InitValidationGroup();
    } else {
        if (opts != undefined || opts != null) {
            jQuery("#form1").validate(opts);
        } else {
            jQuery("#form1").validate();
        }
    }

});

function GetRemoteInfo1(postUrl, data) {
    var remote = {
        type: "POST",
        async: false,
        url: postUrl,
        dataType: "text",
        data: data,
        dataFilter: function(dataXML) {
            var result = new Object();
            if (dataXML == "1") {
                result.Result = false;
                result.Msg="已存在，另换一个试试。";
                return result;
            }
            else {
                result.Result =true;
                return result;
            }
        }
    };
    return remote;
}

function InitRules() {
    var dataCode = {
        username: function () {
            return $("#txtUserName").val();
        },
        key:function(){
            return "CheckSysAdminName";
        }
    };
    var remoteCode = GetRemoteInfo1('/Service/sysHandle.ashx', dataCode);

    opts = {
        rules: {
            txtUserName: {
                required: true,
                remote:remoteCode
            },
            txtPass:{
                required: true,
                minlength: 6
            },
            txtAgainPass:{
                required: true,
                equalTo: "#txtPass"
            },
            txtName:{
                required: true
            }
        },
        messages: {
            txtUserName: {
                required: "请输入账号。"
            },
            txtPass:{
                required: "请输入密码。",
                minlength: "至少输入6位的密码。"
            },
            txtAgainPass:{
                required: "请输入确认密码。",
                equalTo: "密码不一致。"
            },
            txtName:{
                required:"请输入姓名。"
            }
        }
        , success: function (label) {
            label.html(" ").attr("class", "success").siblings("label").remove();
        },
        errorPlacement: function (error, element) {
            $(element).next("span").find(".success").remove();
            error.appendTo(element.next("span"));
        }
    }
}