1using System;
 2using System.Data;
 3using System.Configuration;
 4using System.Collections;
 5using System.Web;
 6using System.Web.Security;
 7using System.Web.UI;
 8using System.Web.UI.WebControls;
 9using System.Web.UI.WebControls.WebParts;
10using System.Web.UI.HtmlControls;
11using System.Data.SqlClient;
12
13public partial class Result : System.Web.UI.Page
14...{
15    protected void Page_Load(object sender, EventArgs e)
16    ...{
17        SqlData da = new SqlData();
18        SqlDataReader dr = da.ExceRead("select * from tb_Vote where ID="+Request["ID"]+"");
19        dr.Read();
20        string strContent = dr["Content"].ToString();
21        dr.Close();
22        decimal decNumAll = GetNumAll(strContent);//得到所有票数，C#在除法运算中需用decimal类型，否则将会把小数点后的数去掉
23        Response.Write(GetResult(strContent, decNumAll));
24    }
25
26    /**//// <summary>
27    /// 显示图象
28    /// </summary>
29    /// <param name="strContent">相关主题下的内容</param>
30    /// <param name="decNumAll">所有的票数</param>
31    /// <returns></returns>
32    public string GetResult(string strContent, decimal decNumAll)
33    ...{
34        string[] arrContent = strContent.Split('|');
35        string strBody = "<table width=100% border=1>\n";
36        foreach (string strContentIN in arrContent)
37        ...{
38            string strItemName = strContentIN.Split(',')[1].ToString();//得到选项名称
39            decimal decItemNum = Convert.ToDecimal(strContentIN.Split(',')[0]);//得到选项的投票数
40            decimal decPercent = GetPercent(decItemNum, decNumAll) * 100;//得到百分比                
41            string strPercent = decPercent.ToString();//将百分比转为字符型
42            if (strPercent.Length > 5)//如果百分比结果长度超过5位
43            ...{
44                strPercent = strPercent.Substring(0, 5);//将百分比的余数截短为“00.00”
45            }
46            strBody += "<tr><td width=100>" + strItemName + "</td><td width=50>" + decItemNum.ToString() + "票</td><td><img src=Images/bar1.gif height=10 width=" + strPercent + "%>" + strPercent + "%</td></tr>\n";
47        }
48        strBody += "</table>";
49        return strBody;
50    }
51 
52
53    /**//// <summary>
54    /// 票数求和
55    /// </summary>
56    /// <param name="strNum">当前所要操作的字串</param>
57    /// <returns></returns>
58    public decimal GetNumAll(string strNum)
59    ...{
60        decimal decNumAll = 0;
61        string[] arrNum = strNum.Split('|');
62        foreach (string strNumIN in arrNum)
63        ...{
64            decNumAll += Convert.ToInt32(strNumIN.Split(',')[0].ToString());//截取第零位
65        }
66        return decNumAll;
67    }
68 
69    /**//// <summary>
70    /// 百分比
71    /// </summary>
72    /// <param name="decItem">当前选项本身的票数</param>
73    /// <param name="decNumAll">所有的票数</param>
74    /// <returns></returns>
75    public decimal GetPercent(decimal decItem, decimal decNumAll)
76    ...{
77        if (decNumAll == 0)//如果总票数是零
78        ...{
79            decNumAll++;//加一，避免除0出错
80        }
81        decimal decPercent = decItem / decNumAll;
82        return decPercent;
83    }
84}
85