如何：在 Calendar Web 服务器控件中以编程方式设置当前日期

更新：2007 年 11 月

默认情况下，Calendar 控件中“today”（今天）的值设置为与运行 Web 窗体页的服务器的日期相匹配的值。但是，您可能需要调整该日期，使其适应在不同的时区中查看网页的用户的需要。

以编程方式设置当前日期

• 将 Calendar 控件的 TodaysDate 属性设置为 DateTime 值。

  下面的示例将 TodaysDate 设置为“tomorrow”（明天），然后将 SelectedDate 设置为 TodaysDate。在浏览器中，对应于“tomorrow”（明天）的日期将突出显示。

  Dim tomorrow As Date = Date.Today.AddDays(1)
  Calendar1.TodaysDate = tomorrow
  Calendar1.SelectedDate = Calendar1.TodaysDate
  

  DateTime tomorrow = DateTime.Today.AddDays(1);
  Calendar1.TodaysDate = tomorrow;
  Calendar1.SelectedDate = Calendar1.TodaysDate;
  

  下面的示例演示如何用选择的日期填充 DropDownList 控件并根据用户在列表中的选择设置“日历”控件中的当天日期值。

  Protected Sub Page_Load(ByVal sender As Object, _
          ByVal e As System.EventArgs) Handles Me.Load
      If Not IsPostBack Then
          Dim today As DateTime = System.DateTime.Today
          Dim yesterday As DateTime = today.AddDays(-1)
          Dim tomorrow As DateTime = today.AddDays(1)
          DropDownList1.items.Add(String.Format("{0:dd MMM yyyy}", _
             today))
          DropDownList1.items.Add(String.Format("{0:dd MMM yyyy}", _
             yesterday))
          DropDownList1.items.Add(String.Format("{0:dd MMM yyyy}", _
             tomorrow))
      End If
  End Sub
  
  Protected Sub DropDownList1_SelectedIndexChanged(ByVal sender _
          As Object, ByVal e As System.EventArgs) _
          Handles DropDownList1.SelectedIndexChanged
      Calendar1.TodaysDate = _
          Date.Parse(DropDownList1.SelectedItem.Text)
  End Sub
  

  protected void Page_Load(object sender, EventArgs e)
  {
      if (!IsPostBack)
      {
          DateTime today = System.DateTime.Today;
          DateTime yesterday = today.AddDays(-1);
          DateTime tomorrow = today.AddDays(1);
          DropDownList1.Items.Add(String.Format("{0:dd MMM yyyy}",
             today));
          DropDownList1.Items.Add(String.Format("{0:dd MMM yyyy}",
             yesterday));
          DropDownList1.Items.Add(String.Format("{0:dd MMM yyyy}",
             tomorrow));
      }
  }
  protected void DropDownList1_SelectedIndexChanged(object sender, 
      EventArgs e)
  {
      Calendar1.TodaysDate = 
          DateTime.Parse(DropDownList1.SelectedItem.Text);
  }
  

请参见

概念

Calendar Web 服务器控件概述