ASP.NET Calendar控件 限制可选日期

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public partial class Default3: System.Web.UI.Page {

    protected void Page_Load(object sender, EventArgs e) {

    }

    protected void Calendar1_DayRender(object sender, DayRenderEventArgs e) {

        // 控制日历控件的可选择日期

        // 只能选择今天及以后的日期，而且必须为周日

        e.Day.IsSelectable =

            (e.Day.Date >= DateTime.Now.Date) && (e.Day.Date.DayOfWeek == DayOfWeek.Sunday);

    }

}