using SQLData;
using System;
using System.Collections;
using System.Collections.Generic;
using System.Data;
using System.Data.OleDb;
using System.IO;
using System.Linq;
using System.Text;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using SiteCore;

public partial class plug_oImports : BasePage
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
        }
    }

    private bool checkFile(HttpPostedFile postedFile)
    {
        if (postedFile != null && postedFile.ContentLength > 0)
        {
            string fileName = postedFile.FileName;
            if (fileName.IndexOf(".xls", StringComparison.OrdinalIgnoreCase) == -1)
                return false;
            string fileType = postedFile.ContentType;
            if (fileType == "application/vnd.ms-excel" || fileType == "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet")
                return true;
        }
        return false;
    }

    protected void btnSure_Click(object sender, EventArgs e)
    {
        HttpPostedFile postedFile = xlsFile.PostedFile;
        if (!checkFile(postedFile))
        {
            litResult.Text = "选择上传的文件格式不正确,无法上传,格式是xls或xlsx!";
            return;
        }
        string exted = Path.GetExtension(postedFile.FileName);
        string filePath = "";
        if (!Directory.Exists(filePath))
        {
            Directory.CreateDirectory(filePath);
        }
        string file = filePath+"\\"+DateTime.Now.ToFileTime() + exted;
        postedFile.SaveAs(file);
        if (File.Exists(file))
        {
            DataSet ds = ExcelDataSource(file);
            DataTable dt = ds.Tables[0];
            //dt.Rows.RemoveAt(0);
            StringBuilder str = new StringBuilder();
            //str.Append(" declare @userId int ;");
            foreach (DataRow dr in dt.Rows)
            {
                string personName = dr[0].ToString().Trim();
                if (personName == "序号") continue;
                if (personName == "")
                    break;
                //不存在则新增会员
                str.AppendFormat(" delete from S_Subject where title='{0}';", dr[1].ToString().Trim());
                str.Append(" insert into S_Subject(title,stype,optiona,optionb,optionc,optiond,answer,resolution,point)");
                str.AppendFormat(" Values('{0}',{1},'{2}','{3}','{4}','{5}','{6}','{7}',{8}) ;", 
                    dr[1].ToString().Trim(), getType(dr[2].ToString().Trim()), dr[3].ToString().Trim(), dr[4].ToString().Trim(), dr[5].ToString().Trim(), dr[6].ToString().Trim(), dr[7].ToString().Trim(), dr[8].ToString().Trim(), dr[9].ToString().Trim());
            }
            if (str.Length > 0)
            {
                DbHelper.DbConn.ExecuteNonQuery(str.ToString());
                //DbHelper.DbConn.ExecuteNonQuery(str.ToString());
                litResult.Text = "导入成功!";
                ShowResult("导入成功", "closeFn();");
            }
        }
    }

    private int getType(string t)
    {
        t = t.Replace("题", "");
        switch (t) {
            case "单选":return 1;
            case "多选": return 2;
            case "判断": return 3;
        }
        return 1;
    }

    public static DataSet ExcelDataSource(string filepath)
    {

        string strConn = "Provider=Microsoft.ACE.OleDb.12.0;Data Source=" + filepath + ";Extended Properties='Excel 12.0;HDR=yes;IMEX=1;'";
        //string strConn="Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + filepath + ";Extended Properties=Excel 8.0;";
        using (OleDbConnection conn = new OleDbConnection(strConn))
        {
            conn.Open();
            DataTable sheetNames = conn.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, new object[] { null, null, null, "TABLE" });
            ArrayList al = new ArrayList();
            foreach (DataRow dr in sheetNames.Rows)
            {
                al.Add(dr[2]);
            }
            OleDbDataAdapter oada = new OleDbDataAdapter("select * from [" + al[0] + "]", strConn);
            DataSet ds = new DataSet();
            oada.Fill(ds);
            conn.Close();
            return ds;
        }
    }
}