Rapid Web Application Development

using System;
using System.Collections;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using rasp.SQL;
using rasp.SQL.SQLStatement;
using rasp.SQL.DBInfo;

namespace rasp.HTML.Controls
{
	/// <summary>
	/// Contains 3 controls. The default Calendar control, a button and a textbox. The button will hide and/or show the 
	/// calendar control, and clicking a date in the calendar will place the selected date into the textbox.
	/// </summary>
	public class RaspCalendar : PlaceHolder, IWebControl {		
		private TextBox tb = new TextBox();
		private string VirtualName;
		/// <summary>
		/// Constructs the RaspCalendar with the given parameters.
		/// </summary>
		/// <param name="fi">A FieldInfo object that represents the field to be bound to the calendar.</param>
		/// <param name="val">The current value of the calendar.</param>
		/// <param name="CalendarChangeEvent">The event to be fired when a date is selected on the calendar, and should put the selected value into the corresponding textbox.</param>
		/// <param name="CalendarHideShowEvent">The event to be fired when the elipse button next to the textbox is clicked.</param>
		public RaspCalendar(FieldInfo fi, string val) {
			EnableViewState = true;
			VirtualName = fi.VirtualName;
			Text = val;
			tb.Width = new Unit(11,UnitType.Ex);
			ID = fi.ActualName;
			tb.ToolTip = fi.Description;
			Initialize();
		}

		

		#region Properties
		/// <summary>
		/// Gets or sets the selected date on the calendar, as well as the value for the textbox.
		/// </summary>
		/// <remarks>
		/// If you set the date to null, an empty string, or "1/1/0001", then the date will be set to "Today"
		/// </remarks>
		public string Text {
			get{
				return tb.Text;
			}
			set{
				if (value == null) {
					value = "";  
				} 
				if (value.Equals("1/1/0001") || value.Equals("")) {
					tb.Text = "[None]";
				} else {
					tb.Text = value;
				}
			}
		}
		/// <summary>
		/// Gets or sets the ID of the calendar, textbox and button.
		/// </summary>
		/// <remarks>
		/// The textbox's ID is actually the value returned in the getter, for the setter, since two controls cannot have the same ID,
		/// the textbox ID is set to the provided value, the calendars ID is set to the value + "_Calendar" and the buttons ID is
		/// set to the value + "_Button"
		/// </remarks>
		override public string ID {
			get {
				return tb.ID;
			}
			set {				
				tb.ID = VirtualName;
			}

		}
		/// <summary>
		/// Gets or sets the width of the textbox only.
		/// </summary>
		public Unit Width {
			get{
				return tb.Width;
			}
			set{
				tb.Width = value;
			}
		}
		#endregion

		#region Methods
		private void Initialize() {
			Controls.Add(tb);
			tb.ReadOnly = true;
			Controls.Add(this.CreateCalendarButton());
		}
		private Literal CreateCalendarButton() {
			Literal l = new Literal();
			l.Text = "<a href=\"javascript:calendarPopup('"+ this.ID +"', 250, 250);\"><img border=0 src="+ Constants.Images.Calendar + "></a>";
			return l;
		}
		/// <summary>
		/// This essentially hides the underlying TextBox control and returns a RaspHidden control.
		/// </summary>
		/// <returns>A RaspHidden control.</returns>
		public WebControl Hide() {
			return Tools.Hide(this);
		}
		#endregion
	}

}