C#编程

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WebForm1.aspx.cs：源码内容
							using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using PCSWebApp4.eventDataService;
namespace PCSWebApp4
{
	/// <summary>
	/// Summary description for WebForm1.
	/// </summary>
	public class WebForm1 : System.Web.UI.Page
	{
      protected System.Web.UI.WebControls.TextBox nameBox;
      protected System.Web.UI.WebControls.RequiredFieldValidator validateName;
      protected System.Web.UI.WebControls.Calendar calendar;
      protected System.Web.UI.WebControls.TextBox eventBox;
      protected System.Web.UI.WebControls.RequiredFieldValidator validateEvent;
      protected System.Web.UI.WebControls.DropDownList roomList;
      protected System.Web.UI.WebControls.RequiredFieldValidator validateRoom;
      protected System.Web.UI.WebControls.ListBox attendeeList;
      protected System.Web.UI.WebControls.RequiredFieldValidator validateAttendees;
      protected System.Web.UI.WebControls.Button submitButton;
      protected System.Web.UI.WebControls.ValidationSummary validationSummary;
      protected System.Web.UI.WebControls.DataList eventDetails2;
      protected System.Web.UI.WebControls.Label edName;
      protected System.Web.UI.WebControls.Label edDate;
      protected System.Web.UI.WebControls.Label edRoom;
      protected System.Web.UI.WebControls.Label edAttendees;
      protected System.Web.UI.WebControls.Label resultLabel;
      protected System.Web.UI.WebControls.DataGrid eventDetails1;
      protected System.Data.DataSet ds;
      protected System.Data.DataTable eventTable;
		private void Page_Load(object sender, System.EventArgs e)
		{
         ds = (DataSet)Application["ds"];
         attendeeList.DataSource = ds.Tables["Attendees"];
         roomList.DataSource = ds.Tables["Rooms"];
         eventTable = ds.Tables["Events"];
         eventDetails1.DataSource = eventTable;
         eventDetails2.DataSource = eventTable;
         if (!this.IsPostBack)
         {
            System.DateTime trialDate = System.DateTime.Now;
            calendar.SelectedDate = getFreeDate(trialDate);
            this.DataBind();
         }
         else
         {
            eventDetails1.DataBind();
            eventDetails2.DataBind();
         }
      }
		#region Web Form Designer generated code
		override protected void OnInit(EventArgs e)
		{
			//
			// CODEGEN: This call is required by the ASP.NET Web Form Designer.
			//
			InitializeComponent();
			base.OnInit(e);
		}
		
		/// <summary>
		/// Required method for Designer support - do not modify
		/// the contents of this method with the code editor.
		/// </summary>
		private void InitializeComponent()
		{    
         this.calendar.DayRender += new System.Web.UI.WebControls.DayRenderEventHandler(this.calendar_DayRender);
         this.calendar.SelectionChanged += new System.EventHandler(this.calendar_SelectionChanged);
         this.submitButton.Click += new System.EventHandler(this.submitButton_Click);
         this.eventDetails2.SelectedIndexChanged += new System.EventHandler(this.eventDetails2_SelectedIndexChanged);
         this.Load += new System.EventHandler(this.Page_Load);
      }
		#endregion
      private void submitButton_Click(object sender, System.EventArgs e)
      {
         if (this.IsValid)
         {
            String attendees = "";
            foreach (ListItem attendee in attendeeList.Items)
            {
               if (attendee.Selected)
               {
                  attendees += attendee.Text + " (" + attendee.Value + "), ";
               }
            }
            attendees += " and " + nameBox.Text;
            String dateString =
               calendar.SelectedDate.Date.Date.ToShortDateString();
            Service1 dataService = new Service1();
            int queryResult = dataService.AddEvent(eventBox.Text,
               roomList.SelectedItem.Value,
               attendees,
               dateString);
            if (queryResult == 1)
            {
               resultLabel.Text = "Event Added.";
               ds = dataService.GetData();
               Application.Lock();
               Application["ds"] = ds;
               Application.UnLock();
               eventTable = ds.Tables["Events"];
               calendar.SelectedDate =
                  getFreeDate(calendar.SelectedDate.AddDays(1));
               eventDetails1.DataSource = eventTable;
               eventDetails1.DataBind();
               eventDetails2.DataSource = eventTable;
               eventDetails2.DataBind();
            }
            else
            {
               resultLabel.Text = "Event not added due to DB access problem.";
            }
         }
      }
      private System.DateTime getFreeDate(System.DateTime trialDate)
      {
         if (eventTable.Rows.Count > 0)
         {
            System.DateTime testDate;
            bool trialDateOK = false;
            while (!trialDateOK)
            {
               trialDateOK = true;
               foreach (System.Data.DataRow testRow in eventTable.Rows)
               {
                  testDate = (System.DateTime)testRow["EventDate"];
                  if (testDate.Date == trialDate.Date)
                  {
                     trialDateOK = false;
                     trialDate = trialDate.AddDays(1);
                  }
               }
            }
         }
         return trialDate;
      }
      private void calendar_DayRender(object sender, System.Web.UI.WebControls.DayRenderEventArgs e)
      {
         if (eventTable.Rows.Count > 0)
         {
            System.DateTime testDate;
            foreach (System.Data.DataRow testRow in eventTable.Rows)
            {
               testDate = (System.DateTime)testRow["EventDate"];
               if (testDate.Date == e.Day.Date)
               {
                  e.Cell.BackColor = Color.Red;
               }
            } 
         }
      }
      private void calendar_SelectionChanged(object sender, System.EventArgs e)
      {
         System.DateTime trialDate = calendar.SelectedDate;
         calendar.SelectedDate = getFreeDate(trialDate);
      }
      protected void eventDetails2_SelectedIndexChanged(object sender, System.EventArgs e)
      {
         eventDetails2.DataBind();
         DataRow selectedEventRow =
            eventTable.Rows[eventDetails2.SelectedIndex];
         edName.Text = (string)selectedEventRow["Name"];
         edDate.Text = "<b>Date:</b> " +
            ((DateTime)selectedEventRow["EventDate"]).ToLongDateString();
         edAttendees.Text = "<b>Attendees:</b> " +
            (string)selectedEventRow["AttendeeList"];
         DataRow selectedEventRoomRow =
            ds.Tables["Rooms"].Rows[(int)selectedEventRow["Room"] - 1];
         edRoom.Text = "<b>Room:</b> " + selectedEventRoomRow["Room"];
      }
	}
}

						