线上学习平台知识总结

1.对象转换

对象一

var PList1 = from ph in db.Pa_Point_History
                             join cou in db.Pa_Online_Course
                             on ph.source_id equals cou.id
                             where ph.point_source == 4 && ph.user_id == uId && cou.status == 0
                             select new Pa_Online_CourseModel
                             {
                                 point = ph.point,
                                 id = ph.id
                             };
                var ol = (List<Pa_Online_CourseModel>)PList1;

对象二

var banks = this.DataProvider.ExecuteObject(typeof(BankInfo), sql, null);

bankInfo = (BankInfo)banks;

2.后台对象赋值，前台读取

例子一

public ExamInfo examInfo { get; set; }

ExamInfo eInfo = new ExamInfo();

eInfo.NewStatus = "未开始"; eInfo.NewResult = "?";

<p>是否完成：<span><%=examInfo.NewStatus%></span></p>

例子二

private string id;

public string Id

{   get { return Request.QueryString["id"]; }

set { id = value; }         }

<input type="hidden" id="_id" name="_id" value=‘<%=Id%>‘>

3.input 按钮点击事件
    $("input:radio").click(function () {
        var domName = $(this).attr(‘name‘);
        $("input:radio[name=‘" + domName + "‘]").attr(‘checked‘, false);//1.
        $(this).attr(‘checked‘, true);//2.
    });
</script>