把csv文件导入数据库

    protected void Page_Load(object sender, EventArgs e)
    {
        string paths = Server.MapPath("");
        DataSet ds3= getcsv(paths, paths+"2010年淘趣后台导入价格表样式20100828.csv");
        GridView1.DataSource = ds3;
        GridView1.DataBind();
    }

    private DataSet getcsv(string filepath, string filename)
    {

        string strconn = @"driver={microsoft text driver (*.txt; *.csv)};dbq=";

        strconn += filepath;

        strconn += ";extensions=asc,csv,tab,txt;";

        System.Data.Odbc.OdbcConnection con = new OdbcConnection(strconn);


        DataSet data = new DataSet();

        string sql = "select 材质,品牌 from " + filename;

        OdbcDataAdapter adp = new OdbcDataAdapter(sql, con);

        // con.open();  

        adp.Fill(data);

        return data;

    }  

///
    /// 将csv格式文件导成dataset
    ///
    ///文件路径
    ///文件名
    ///
    private dataset getcsv(string filepath,string filename)
    {
        string strconn = @"driver={microsoft text driver (*.txt; *.csv)};dbq=";
        strconn += filepath;
        strconn += ";extensions=asc,csv,tab,txt;";
        odbcconnection con = new odbcconnection(strconn);
        dataset data = new dataset();
        string sql = "select * from " + filename;
        odbcdataadapter adp = new odbcdataadapter(sql, con);
       // con.open();
        adp.fill(data);
        return data;
    }

///
    /// 把dataset数据插入数据库
    ///
    ///
    ///表名
    ///
    public bool bulkdata(dataset _ds, string _tablename)
    {
        string strconn = "server=.;database=filessync;uid=sa;pwd=123";

        sqlconnection sqlcon = new sqlconnection(strconn);

        sqlcon.open();

        sqlbulkcopy sqlbulk = new sqlbulkcopy(sqlcon);

        sqlbulk.destinationtablename = _tablename;

        try
        {
           
            sqlbulk.writetoserver(_ds.tables[0],datarowstate.unchanged);

            return true;

        }

        catch
        {
           
            return false;

        }

        finally
        {

            sqlcon.close();

            sqlcon.dispose();

            sqlbulk.close();

        }

    }

dataset ds = getcsv("e:\\", "yx.csv");
        gridview1.datasource = ds.tables[0].defaultview;
        gridview1.databind();
        bool isbool = bulkdata(ds, "td_data");
        if (isbool)
        {
            response.write("

");
        }
        else
        {
            response.write("

");
        }


把csv文件导成dataset成功，但是把dataset的内容导入数据怎么失败
 sqlbulk.writetoserver(_ds.tables[0],datarowstate.unchanged);这句报错
无法访问目标表 tb_data

答案 1 

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------其他回答（40分）---------

好像把那个gridview绑定去了就可以了