Question

我正在尝试创建一个日历，以突出显示在DropDownList1中选定的大厅中进行活动的日期。

public partial class Calendar : System.Web.UI.Page
{
    IQueryable<Activity> activities;

    protected void Page_Init(object sender, EventArgs e)
    {
        int idHall;
        bool b = Int32.TryParse(DropDownList1.SelectedValue, out idHall);
        if (!b)
        {
            idHall = 2;
        }

        ModelDatabase db = new ModelDatabase();

        activities = from a in db.Activities
                     join s in db.Halls on a.hall_id_hall equals s.id_hall
                     where s.i[d_hall == idHall
                     select a;][1]
    }

    protected void Page_Load(object sender, EventArgs e)
    {


    }

    protected void Calendar1_DayRender(object sender, DayRenderEventArgs e)
    {
        foreach (Activity a in activities) {
            DateTime calendarDay = e.Day.Date;
            DateTime activityStart= a.start ?? default(DateTime);
            DateTime activityEnd = a.end ?? default(DateTime);
            if (DateTime.Compare(activityStart, calendarDay) > 0 && 
                DateTime.Compare(activityEnd, calendarDay.AddDays(1)) < 0)
            {
                e.Cell.BackColor = Color.Yellow;
                break;
            }
        }
    }

    protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
    {
        int idSalon = Int32.Parse(DropDownList1.SelectedValue);

        ModelDatabase db = new ModelDatabase();

        activities = from a in db.Activities
                     join h in db.Halls on a.hall_id_hall equals h.id_hall
                     where h.id_hall == idHall
                     select a;
    }

Answer 1

解决了我在写问题时的问题。我所要做的就是将Page_Init中的代码移动到Page_load中。读ASP.NET Page Life Cycle对我有帮助。

如何在日历控件ASP.net中突出显示特定日期？

1 个答案: