NotImplementedException：未实现OleDb

Question

我正在尝试使用Unity中的OleDB连接读取dbf文件。我在Visual Studio中使用C＃成功运行了一个项目。虽然当我在Unity中尝试时会收到NotImplementedException：OleDb未实现。

        static public void readDBF()
        {
            OleDbConnection con = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=c:\\;Extended Properties=dBASE IV;User ID=;Password=;"); // give your path directly 
            try
            {
                con.Open();
                OleDbDataAdapter da = new OleDbDataAdapter("select * from ydr.dbf", con); // update this query with your table name 
                DataSet ds = new DataSet();
                da.Fill(ds);
                con.Close();
                int i = ds.Tables[0].Rows.Count;
                if (ds.Tables.Count > 0)
                    PrintDataSet(ds);
                else
                {
                    Console.WriteLine("Empty");
                }

            }
            catch (Exception e)
            {
                var error = e.ToString();
                // check error details 
                throw;
            }



        }