showvote.aspx.cs

来自「ASP C#代码实例 适合初学人士学习使用」· CS 代码 · 共 100 行

using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;


namespace Example_10_4
{
	/// <summary>
	/// ShowVote 的摘要说明。
	/// </summary>
	public class ShowVote : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.DataGrid VoteList;
		protected System.Web.UI.WebControls.Label VoteMessage;
		int voteTotal = 0;	
	
		private void Page_Load(object sender, System.EventArgs e)
		{
			SetVoteTotal();
			if(!Page.IsPostBack)
			{
				BindVoteListData();

				VoteMessage.Text = "总票数为：" + voteTotal.ToString();
			}
		}

		private void SetVoteTotal()
		{
			VoteDB vote = new VoteDB();
			SqlDataReader recv = vote.GetVotes();

			voteTotal = 0;
			while(recv.Read())
			{
				voteTotal += Int32.Parse(recv["VoteCount"].ToString());
			}
			recv.Close();
		}

		private void BindVoteListData()
		{
			VoteDB vote = new VoteDB();
			SqlDataReader recv = vote.GetVotes();

			VoteList.DataSource = recv;
			VoteList.DataBind();

			recv.Close();
		}

		public int FormatVoteCount(String voteCount)
		{
			if(voteCount.Length <= 0)
			{
				return(0);
			}
			if(voteTotal > 0)
			{
				return((Int32.Parse(voteCount)* 100/voteTotal) );
			}
			return(0);
		}

		public int FormatVoteImage(int voteCount)
		{
			return(voteCount * 3);
		}

		#region Web 窗体设计器生成的代码
		override protected void OnInit(EventArgs e)
		{
			//
			// CODEGEN: 该调用是 ASP.NET Web 窗体设计器所必需的。
			//
			InitializeComponent();
			base.OnInit(e);
		}
		
		/// <summary>
		/// 设计器支持所需的方法 - 不要使用代码编辑器修改
		/// 此方法的内容。
		/// </summary>
		private void InitializeComponent()
		{    
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

	}
}