封装日期选择器控件

共有如下几个属性：
Minyear:最小年份
Maxyear:最大年份
Theme:样式
Valign:显示位置
     

用Calendar1.Text来取值。

代码如下

  1 using System;
  2 using System.Collections.Generic;
  3 using System.ComponentModel;
  4 using System.Web;
  5 using System.Drawing;
  6 using System.Web.UI;
  7 using System.Web.UI.WebControls;
  8 using System.Web.UI.HtmlControls;
  9 
 10 namespace Fting.Calendar
 11 {
 12     [ToolboxData("<{0}:calendar runat=\"server\"></{0}:calendar>")]
 13     public class calendar : TextBox
 14     {
 15         private int _minyear = 1900;
 16         private int _maxyear = 2999;
 17 
 18         [Browsable(true)]
 19         [Description("最小年份")]
 20         [DefaultValue("1900")]
 21         [Category("设定")]
 22         public virtual int Minyear
 23         {
 24             get { return _minyear; }
 25             set { _minyear = value; }
 26         }
 27         [Browsable(true)]
 28         [Description("最大年份")]
 29         [DefaultValue("2999")]
 30         [Category("设定")]
 31         public virtual int Maxyear
 32         {
 33             get { return _maxyear; }
 34             set { _maxyear = value; }
 35         }
 36         [Browsable(true)]
 37         [Description("日历显示位置")]
 38         [DefaultValue("Br")]
 39         [Category("设定")]
 40         public calendarvalign Valign
 41         {
 42             get
 43             {
 44                 if (this.ViewState["valign"] == null)
 45                 {
 46                     return calendarvalign.bottom;
 47                 }
 48                 return (calendarvalign)this.ViewState["valign"];
 49             }
 50             set
 51             {
 52                 this.ViewState["valign"] = value;
 53             }
 54         }
 55 
 56         [Browsable(true)]
 57         [Description("日历样式设置")]
 58         [DefaultValue(0)]
 59         [Category("设定")]
 60         public calendarstyle Theme
 61         {
 62             get
 63             {
 64                 if (this.ViewState["calendarstyle"] == null)
 65                 {
 66                     return calendarstyle.blue;
 67                 }
 68                 return (calendarstyle)this.ViewState["calendarstyle"];
 69             }
 70             set
 71             {
 72                 this.ViewState["calendarstyle"] = value;
 73             }
 74         }
 75 
 76         protected override void OnPreRender(EventArgs e)
 77         {
 78             string valign = null;
 79             if (Valign.ToString() == "top")
 80             {
 81                 valign = "Tr";
 82             }
 83             else if (Valign.ToString() == "bottom")
 84             {
 85                 valign = "Br";
 86             }
 87             this.Page.PreRenderComplete += new EventHandler(Page_PreRender);
 88             this.Attributes.Add("onFocus", "return getcalendar('" + this.ID + "','" + this.ID + "','" + valign + "','" + Minyear + "','" + Maxyear + "')");
 89             base.OnPreRender(e);
 90         }
 91         void Page_PreRender(object sender, EventArgs e)
 92         {
 93             Page.ClientScript.RegisterClientScriptResource(this.GetType(), "Fting.Calendar.javascript.calendar.js");
 94             Page.ClientScript.RegisterClientScriptResource(this.GetType(), "Fting.Calendar.javascript.cn_utf8.js");
 95             Page.ClientScript.RegisterClientScriptResource(this.GetType(), "Fting.Calendar.javascript.calendar-setup.js");
 96             RegCss("Fting.Calendar.style." + Theme + ".css");
 97         }
 98         /// <summary>
 99         /// 注册CSS样式表
100         /// </summary>
101         /// <param name="Path"></param>
102         private void RegCss(string Path)
103         {
104             HtmlGenericControl css = new HtmlGenericControl("link");
105             css.Attributes.Add("href", Page.ClientScript.GetWebResourceUrl(typeof(calendar), Path));
106             css.Attributes.Add("type", "text/css");
107             css.Attributes.Add("rel", "stylesheet");
108             Page.Header.Controls.Add(css);
109         }
110     }
111     public enum calendarstyle
112     {
113         blue,
114         brown,
115         green,
116         system,
117         tas,
118         win2k,
119         win2k_cold
120     }
121     public enum calendarvalign
122     { 
123         top,
124         bottom
125     }
126 }