关于使用jQuery.validate验证表单中两次密码是否一致的问题

今天用了下validate 其他没问题 就是验证两次密码是否一致时总是无法通过是为什么 ？
语法是按照网上的文档写的。
$("#aspnetForm").validate({
rules: {
txtName: {
required: true
},
txtTrueName: {
required: true
},
txtPass: {
required: true,
minlength: 3
},
txtTwoPass: {
required: true,
minlength: 3,
equalTo: "#txtPass"
},
txtEmail: {
required: true,
email: true
},
txtAddress: {
required: true
},
txtPhone: {
required: true
}
},
messages: {
txtName: {
required: "*请输入用户名"
},
txtTrueName: {
required: "*请输入姓名"
},
txtPass: {
required: "*请输入密码",
minlength: "*密码不能小于3个字符"
},
txtTwoPass: {
required: "*请输入确认密码",
minlength: "*密码不能小于3个字符",
equalTo: "*请再次输入相同的值"
},
txtEmail: {
required: "*请输入邮箱",
email: "*请输入正确的邮箱格式"
},
txtAddress: {
required: "*请输入地址"
},
txtPhone: {
required: "*请输入手机号码"
}
}
});

为什么明明我输入的两次密码是一致的还一直提示我呢？
试过不同的浏览器和不同版本的validate都是如此 。。