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 Vote : System.Web.UI.Page
 14...{
 15    public string strContent, strID = null;
 16    protected void Page_Load(object sender, EventArgs e)
 17    ...{
 18        strID = Request["ID"].ToString();
 19
 20        HttpCookie readcookie = Request.Cookies["Vote"];
 21
 22        if (readcookie == null)
 23        ...{
 24            this.labState.Text = "你还未在该投票系统中投票！";
 25        }
 26        else
 27        ...{
 28            this.labState.Text = "你已经在该投票系统投过票了！";
 29        }
 30        SqlData da = new SqlData();
 31        SqlDataReader dr = da.ExceRead("select * from tb_Vote where ID='" + strID + "'") ;
 32        dr.Read();
 33        this.labContent.Text = dr["Title"].ToString();
 34        strContent = dr["Content"].ToString();
 35        string[] str = strContent.Split('|');
 36        int intORDER = 0;//排序
 37        if (!Page.IsPostBack)//有提交行为，不执行以下数据的重载
 38        ...{
 39            foreach (string strContentIN in str)
 40            ...{
 41                string strContentOK = strContentIN.Split(',')[1];
 42                this.RadioButtonList1.Items.Add(new ListItem(strContentOK, intORDER.ToString()));
 43                intORDER++;//累加选项的值
 44            }
 45        }    
 46    }
 47
 48
 49    protected void btnVote_Click(object sender, EventArgs e)
 50    ...{
 51        if (this.RadioButtonList1.SelectedIndex != -1)//如果有选定项目
 52        ...{
 53            //投票防作弊
 54            HttpCookie makecookie = new HttpCookie("Vote");//制造cookie
 55            HttpCookie readcookie = Request.Cookies["Vote"];//读出cookie
 56
 57            if (readcookie == null)//从未投过票
 58            ...{
 59                makecookie.Values.Add("VoteItem", "<" + strID + ">");
 60            }
 61            else
 62            ...{
 63                //Response.Write(readcookie.Values["VoteItem"]);
 64                //Response.End();
 65                string strAllItem = readcookie.Values["VoteItem"].ToString();//读取已投票的项
 66                if (strAllItem.IndexOf("<" + strID + ">") == -1)//未投过票
 67                ...{
 68                    makecookie.Values.Add("VoteItem", readcookie.Values["VoteItem"] + "<" + strID + ">");
 69                }
 70                else//如果已投过票
 71                ...{
 72                    Response.Write("<script language=javascript>alert('该主题你已经成功投过票，不能重新投票！');</script>");
 73                    return;
 74                    //Response.Write("<script language=javascript>alert('该主题你已经成功投过票，不能重新投票！');location='Index.aspx'</script>");
 75                }
 76            }
 77            Response.AppendCookie(makecookie);//写入Cookie
 78
 79            string strSelect = strContent.Split('|')[Convert.ToInt32(this.RadioButtonList1.SelectedValue.ToString())];//当前选中的项目，如“ 2,不错”
 80            int intVote = Convert.ToInt32(strSelect.Split(',')[0]);//当前投票数+1
 81            int intVoteOK = intVote + 1;
 82            string strSelectOK = strSelect.Replace(intVote.ToString(), intVoteOK.ToString());//更新原投票数，所以期望更新的定位精确，可附带+","
 83            string strUPDATE = strContent.Replace(strSelect, strSelectOK);//得到最终
 84            SqlData da = new SqlData();
 85            bool update = da.ExceSQL("update tb_Vote set Content='" + strUPDATE + "' where ID='" + strID + "'");
 86            if (update)
 87            ...{
 88                Response.Write("<script language=javascript>alert('投票成功！');</script>");
 89            }
 90            else
 91            ...{
 92                Response.Redirect("Index.aspx");
 93            }
 94        }
 95        else//如果没有选中项目
 96        ...{
 97            Response.Write("<script language=javascript>alert('请选择投票项！');location='javascript:history.go(-1)'</script>");
 98        }
 99    }
100    protected void btnEdit_Click(object sender, EventArgs e)
101    ...{
102        Response.Redirect("Login.aspx?ID="+Request["ID"]+"");
103    }
104    protected void btnView_Click(object sender, EventArgs e)
105    ...{
106        Response.Redirect("Result.aspx?ID=" + Request["ID"] + "");
107    }
108}
109