在ASP.NET中实现弹出日历的具体方法

<%@ Control Language="c#" AutoEventWireup="false" Codebehind="ctlCalendar.ascx.cs" Inherits="calendar.ctlCalendar" TargetSchema="http://schemas.microsoft.com/intellisense/ie5" enableViewState="True"%>

<asp:textbox id="TextBox1" runat="server"></asp:textbox>

<input type="button" id="Button1" runat="server" value="..."><br>

<asp:Panel id="pnlCalendar" runat="server" style="POSITION: absolute">

 <asp:calendar id="Calendar1" runat="server" FirstDayOfWeek="Monday" ShowGridLines="True" BackColor="White"

  DayNameFormat="Full" ForeColor="Black" Font-Size="8pt" Font-Names="Verdana" BorderColor="#999999"

  CellPadding="4" Width="200px" Height="180px">

  <TodayDayStyle ForeColor="Black" BackColor="#CCCCCC"></TodayDayStyle>

  <SelectorStyle BackColor="#CCCCCC"></SelectorStyle>

  <DayStyle Wrap="False" BorderStyle="Dashed"></DayStyle>

  <NextPrevStyle VerticalAlign="Bottom"></NextPrevStyle>

  <DayHeaderStyle Font-Size="X-Small" Font-Names="宋体" Wrap="False" BorderStyle="Dashed" BackColor="#CCCCCC"></DayHeaderStyle>

  <SelectedDayStyle Font-Bold="True" ForeColor="White" BackColor="#666666"></SelectedDayStyle>

  <TitleStyle Font-Size="Small" Font-Bold="True" BorderStyle="Solid" BorderColor="Black" BackColor="#999999"></TitleStyle>

  <WeekendDayStyle BackColor="LightSteelBlue"></WeekendDayStyle>

  <OtherMonthDayStyle ForeColor="Gray"></OtherMonthDayStyle>

 </asp:calendar>

</asp:Panel>

namespace calendar

{

 using System;

 using System.Data;

 using System.Drawing;

 using System.Web;

 using System.Web.UI.WebControls;

 using System.Web.UI.HtmlControls;

 /// <summary>

 ///  ctlCalendar 的摘要说明。

 /// </summary>

 public class ctlCalendar : System.Web.UI.UserControl

 {

  protected System.Web.UI.WebControls.TextBox TextBox1;

  protected System.Web.UI.WebControls.Panel pnlCalendar;

  protected System.Web.UI.HtmlControls.HtmlInputButton Button1;

  protected System.Web.UI.WebControls.Calendar Calendar1;

  private void Page_Load(object sender, System.EventArgs e)

  {

   // 在此处放置用户代码以初始化页面

   if (!Page.IsPostBack)

   {

    this.TextBox1.Text = System.DateTime.Now.ToShortDateString();

    this.pnlCalendar.Attributes.Add("style","DISPLAY: none; POSITION: absolute");

   }

   else

   {

    string id = Page.Request.Form["__EVENTTARGET"].Substring(0,Page.Request.Form["__EVENTTARGET"].IndexOf(":"));

    if (id != this.ID)

    {

     this.pnlCalendar.Attributes.Add("style","DISPLAY: none; POSITION: absolute");

    }

    else

    {

     this.pnlCalendar.Attributes.Add("style","POSITION: absolute");

    }

   }

   Page.RegisterClientScriptBlock("Script_Panel" + this.ID,

    "<script> function On"+this.ID+"Click() {  if("+this.ID+

"_pnlCalendar.style.display == "none")     "+this.ID+

"_pnlCalendar.style.display = "";   else    "+this.ID+

"_pnlCalendar.style.display = "none"; } </script>");  

   this.Button1.Attributes.Add("OnClick","On"+this.ID+"Click()");

  }

  #region Web 窗体设计器生成的代码

  override protected void OnInit(EventArgs e)

  {

   //

   // CODEGEN: 该调用是 ASP.NET Web 窗体设计器所必需的。

   //

   InitializeComponent();

   base.OnInit(e);

  }

  /// <summary>

  ///  设计器支持所需的方法 - 不要使用代码编辑器

  ///  修改此方法的内容。

  /// </summary>

  private void InitializeComponent()

  {

   this.Calendar1.SelectionChanged += new System.EventHandler(this.Calendar1_SelectionChanged);

   this.Load += new System.EventHandler(this.Page_Load);

  }

  #endregion

  #region 日历选择时的事件

  private void Calendar1_SelectionChanged(object sender, System.EventArgs e)

  {

   this.TextBox1.Text = Calendar1.SelectedDate.ToShortDateString();

   this.pnlCalendar.Attributes.Add("style","DISPLAY: none; POSITION: absolute");

  }

  #endregion

 }

}