刚写好的Asp.Net时间和日期的Label控件。作为讲解Asp.net控件开发的第一部分：继承开发（3）
//==========================================================================
//名称： ZYQ.WebControls.Cultural.DateTimePick.DateTimePickLabel
// Asp.Net服务控件
//版本： 1.0.0.0
//作者： 张宇庆
//日期： 2003.2.12
//Email: raxzhang@sina.com
//说明： 本控件及源代码只是为《计算机世界》开发者俱乐部Asp.Net论坛学习如何开发Asp.net
// 服务器端控件而开发。未经本人同意请勿用作商业用途。
//
//==========================================================================
using System;
using System.Drawing.Design;
using System.Globalization;
using System.ComponentModel;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using ZYQ;
namespace ZYQ.WebControls.Cultural.DateTimePick
{
#region DateFormatOption
/// <summary>
/// 枚举类。DateTimeFormatInfo的日期和时间的格式类型
/// （Default,ShortDate,LongDate,FullDate,RFC1123,ISO8601,UniversalSortableDateTime,ShortTime,LongTime,MonthDay,YearMonth）
/// </summary>
public enum DateFormatOption
{
Customer,
ShortDate,
LongDate,
FullDate,
RFC1123,
ISO8601,
UniversalSortableDateTime,
ShortTime,
LongTime,
MonthDay,
YearMonth,
}
#endregion
#region FormatChangeEventArgs
/// <summary>
/// FormatChangeEventArgs: 继承自System.EventArgs.
/// 格式变化会触发。
/// </summary>
public class FormatChangeEventArgs: EventArgs
{
#region 私有变量声明
DTFormatSetting _dtSetting;
#endregion
#region 属性
/// <summary>
/// （get)返回 ZYQ.WebControls.cultural.DateTimePick.DTFormatSetting对象
/// </summary>
public DTFormatSetting DTSetting
{
get{return this._dtSetting;}
}
#endregion
#region 构造
public FormatChangeEventArgs(DTFormatSetting newSetting)
{
this._dtSetting = newSetting;
}
#endregion
}
#endregion
#region DateTimeFormateEventHandler
/// <summary>
/// 委托FormatChangeEventArgs
/// </summary>
public delegate void DateTimeFormateEventHandler(object Sender,FormatChangeEventArgs e);
#endregion
#region DTFormatSetting
/// <summary>
/// 自定义的时间和日期的格式
/// </summary>
[Editor(typeof(ZYQ.WebControls.Cultural.Design.DateTimePickDesign),typeof(UITypeEditor))]
public class DTFormatSetting
{
#region 私有变量声明
private string _datetimeFormat; //设置时间显示的格式，类初始化时会指定一个初始格式
private string _languageCode; //语言代码
public event DateTimeFormateEventHandler DateTimeFormatChanged; //声明事件
#endregion
#region 属性
/// <summary>
/// RFC 1766 name。
/// 由此属性可创建ZYQ.zyqCultrueInfo对象。
/// 变更此属性会触发DateTimeFormatChanged事件。
/// </summary>
[NotifyParentProperty(true),Browsable(true),Category("Appearance"),Description("设置和获取选定国家和语言的RFC 1766 name。默认为：zh-CN 中文(中华人民共和国)"),DefaultValue("zh-cn")]
public string LanguageAndCountry
{
get
{
return this._languageCode.ToLower();
}
set
{
this._languageCode =value;
FormatChangeEventArgs e = new FormatChangeEventArgs(this);
this.OnDateFormatChanged(e);
}
}
/// <summary>
/// 自定义的格式字符串。如：“yy/MM/dd”。
/// 变更此属性会触发DateTimeFormatChanged事件。
/// </summary>
[NotifyParentProperty(true),Browsable(true),Category("Appearance"),DefaultValue("yyyy'年'M'月'd'日' H:mm:ss"),Description("在当前CultrueInfo允许的范围中,可自定义时间和日期的显示格式。")]
public string FormateString
{
get{return this._datetimeFormat;}
set
{
this._datetimeFormat=value;
FormatChangeEventArgs e = new FormatChangeEventArgs(this);
this.OnDateFormatChanged(e);
}
}
#endregion
#region 构造
/// <summary>
/// 创建DTFormatSetting对象。
/// </summary>
public DTFormatSetting()
{
this._languageCode = CultureInfo.CurrentCulture.Name;
this._datetimeFormat = CultureInfo.CurrentCulture.DateTimeFormat.FullDateTimePattern;
FormatChangeEventArgs e = new FormatChangeEventArgs(this);
this.OnDateFormatChanged(e);
}
/// <summary>
/// 通过System.Globalization.CultureInfo及子类创建DTFormatSetting对象。
/// </summary>
/// <param name="cul">System.Globalization.CultureInfo及子类</param>
public DTFormatSetting(CultureInfo cul)
{
zyqCultrueInfo myInfo = new zyqCultrueInfo(cul.Name,true);
this._languageCode = cul.Name;
this._datetimeFormat =myInfo.DateTimeFormat.FullDateTimePattern;
FormatChangeEventArgs e = new FormatChangeEventArgs(this);
this.OnDateFormatChanged(e);
}
/// <summary>
/// 通过语言国家码创建DTFormatSetting对象。
/// </summary>
/// <param name="languageName">语言国家码（如： zh-CN)</param>
public DTFormatSetting(string language)
{
this._languageCode = language;
zyqCultrueInfo myInfo = new zyqCultrueInfo(language,true);
this._datetimeFormat =myInfo.DateTimeFormat.FullDateTimePattern;
FormatChangeEventArgs e = new FormatChangeEventArgs(this);
this.OnDateFormatChanged(e);
}
/// <summary>
/// 创建DTFormatSetting对象.
/// </summary>
/// <param name="dtf">格式化的时间日期的字符串("yyyy/MM/dd HH:mm:ss tt")</param>
/// <param name="language">语言国家码（如： zh-CN)</param>
public DTFormatSetting(string dtf,string language)
{
this._languageCode =language;
this._datetimeFormat = dtf;
FormatChangeEventArgs e = new FormatChangeEventArgs(this);
this.OnDateFormatChanged(e);
}
#endregion
#region 受保护的事件处理方法
/// <summary>
/// DateTimeFormatChanged事件的处理。
/// </summary>
/// <param name="eventArgument">FormatChangeEventArgs</param>
protected virtual void OnDateFormatChanged(FormatChangeEventArgs eventArgument)
{
if(this.DateTimeFormatChanged !=null)
{
this.DateTimeFormatChanged(this,eventArgument);
}
}
#endregion
}
#endregion
#region DTFormatSettingConvert
/// <summary>
/// 实现DTFormatSetting类型和String类型的双向转换。继承自ExpandableObjectConverter
/// </summary>
public class DTFormatSettingConverter:ExpandableObjectConverter
{
#region 构造
/// <summary>
///创建DTFormatSettingConverter类。
/// </summary>
public DTFormatSettingConverter()
{
}
#endregion
#region 私有辅助方法
/// <summary>
/// 将DTFormatSetting转化为String类型。
/// </summary>
/// <param name="obj">DTFormatSetting</param>
/// <returns>String</returns>
private string ToString(object obj)
{
DTFormatSetting formatting= obj as DTFormatSetting;
return string.Format("{0},{1}",formatting.FormateString,formatting.LanguageAndCountry);//{2},{3},{4},{5}",formatting.FormateString,formatting.LanguageAndCountry,formatting.DateSeparator,formatting.TimeSeparator,formatting.AMDesignator,formatting.PMDesignator);
}
/// <summary>
/// 将String转化为DTFormatSetting类型。
/// </summary>
/// <param name="obj">String</param>
/// <returns>DTFormatSetting</returns>
private DTFormatSetting FromString(object obj)
{
string[] values=((string)obj).Split(',');
if(values.Length !=2)
throw new Exception("设置值无法转换");
try
{
return new DTFormatSetting(values[0],values[1]);
}
catch
{
throw new Exception("设置值无法转换");
}
}
#endregion
#region 重写TypeConvert类的相关方法和函数
public override bool CanConvertFrom(ITypeDescriptorContext context,Type sourceType)
{
if(sourceType ==typeof(string))
return true;
return base.CanConvertFrom(context,sourceType);
}
public override object ConvertFrom(ITypeDescriptorContext context,CultureInfo culture,object value)
{
if(value==typeof(string))
return FromString(value);
return base.ConvertFrom(context,culture,value);
}
public override bool CanConvertTo(ITypeDescriptorContext context,Type destinationType)
{
if(destinationType ==typeof(DTFormatSetting))
return true;
return base.CanConvertTo(context,destinationType);
}
public override object ConvertTo(ITypeDescriptorContext context,CultureInfo culture,object value,Type destinationType)
{
if((destinationType == typeof(string))&& value is DTFormatSetting)
return ToString(value);
return base.ConvertTo(context,culture,value,destinationType);
}
#endregion
}
#endregion
}
