datepicker.cs

本系统是在asp版《在线文件管理器》的基础上设计制作

//------------------------------------------------------------------------------
// <copyright company="Telligent Systems">
//     Copyright (c) Telligent Systems Corporation.  All rights reserved.
// </copyright> 
//------------------------------------------------------------------------------


// 修改说明：修改，使之适合中文日期
// 修改人：宝玉
// 修改日期：2005-02-27

using System;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

using CommunityServer.Components;

namespace CommunityServer.Controls 
{

	/// <summary>
	/// Summary description for DatePicker.
	/// </summary>
	public class DatePicker : WebControl, INamingContainer 
	{
		DropDownList days = new DropDownList();
		DropDownList months = new DropDownList();
		DropDownList years = new DropDownList();
		Label label = new Label();

		protected override void CreateChildControls() 
		{

			// Add default text
			// 修改，将日期表示写入资源文件
			days.Items.Add(new ListItem(ResourceManager.GetString("Day"), ""));
			months.Items.Add(new ListItem(ResourceManager.GetString("Month"), ""));
			years.Items.Add(new ListItem(ResourceManager.GetString("Year"), ""));

			for (int i=1; i<32; i++)
				days.Items.Add(new ListItem(i.ToString(), i.ToString()));

			for (int i=1; i<13; i++)
				months.Items.Add(new ListItem(i.ToString(), i.ToString()));

			for (int i= (DateTime.Now.Year); i>(DateTime.Now.Year - 100); i--)
				years.Items.Add(new ListItem(i.ToString(), i.ToString()));


			//修改，调整顺序
			Controls.Add(years);
			Controls.Add(new LiteralControl("-"));
			Controls.Add(months);
			Controls.Add(new LiteralControl("-"));
			Controls.Add(days);
			Controls.Add(label);

		}

		public DateTime SelectedDate 
		{
			get 
			{ 
				// this.EnsureChildControls();
				if ( days.SelectedValue == "" || months.SelectedValue == "" || years.SelectedValue == "" ) 
				{
					return DateTime.MinValue;
				}
				try 
				{
					// 修改为yyyy-MM-dd格式
					return DateTime.Parse(years.SelectedValue + "-" + months.SelectedValue + "-" + days.SelectedValue);
				} 
				catch 
				{
					return DateTime.MinValue;
				}
			}
			set 
			{ 
				this.EnsureChildControls();
				try
				{
					days.SelectedValue = value.Day.ToString();
					months.SelectedValue = value.Month.ToString();
					years.SelectedValue = value.Year.ToString();
				}
				catch
				{
					days.SelectedValue = "";
					months.SelectedValue = "";
					years.SelectedValue = "";
				}
			}
		}

	}
}