cj2.aspx.cs

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using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using SimpleExam.App_Code;

namespace SimpleExam
{
    public partial class cj2 : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                string sql;
                sql = "select * from chengji order by id desc ";
                getdata(sql);
            }
        }

        private void getdata(string sql)
        {
            DataSet result = new DataSet();
            result = new Class1().hsggetdata(sql);
            if (result != null)
            {

                if (result.Tables[0].Rows.Count > 0)
                {
                    DataGrid1.DataSource = result.Tables[0];
                    DataGrid1.DataBind();
                    Label1.Text = "以上数据中共" + result.Tables[0].Rows.Count + "条";
                    int i = 0; int j = 0; double k = 0; double h = 0;
                    double nzf = 0; double npingjunfen = 0; double njigelv = 0; double nyouxiulv = 0;
                    for (i = 0; i < result.Tables[0].Rows.Count; i++)
                    {
                        if (float.Parse(result.Tables[0].Rows[i]["zf"].ToString().Trim()) < 60) { j = j + 1; };
                        if (float.Parse(result.Tables[0].Rows[i]["zf"].ToString().Trim()) <= 90 && float.Parse(result.Tables[0].Rows[i]["zf"].ToString().Trim()) >= 60) { k = k + 1; };
                        if (float.Parse(result.Tables[0].Rows[i]["zf"].ToString().Trim()) > 90) { h = h + 1; };
                        //npingshichengji = npingshichengji + float.Parse(result.Tables[0].Rows[i]["pingshichengji"].ToString().Trim());nqiweichengji = nqiweichengji + float.Parse(result.Tables[0].Rows[i]["qiweichengji"].ToString().Trim());
                        nzf = nzf + float.Parse(result.Tables[0].Rows[i]["zf"].ToString().Trim());
                    }
                    npingjunfen = nzf / i;
                    njigelv = (k + h) / i;
                    nyouxiulv = h / i;
                    Label1.Text = Label1.Text + "，低于60分人数：" + j; Label1.Text = Label1.Text + "，60-90分人数：" + k; Label1.Text = Label1.Text + "，高于90分人数：" + h; Label1.Text = Label1.Text + "，平均成绩：" + npingjunfen; Label1.Text = Label1.Text + "，及格率：" + njigelv; Label1.Text = Label1.Text + "，优秀率：" + nyouxiulv;
                }

                else
                {
                    DataGrid1.DataSource = null;
                    DataGrid1.DataBind();
                    Label1.Text = "暂无任何数据";
                }