用户 无权访问 数据库解决方案

用户 无权访问 数据库
string connectionstr = "Data Source=localhost;Initial Catalog=zlkDW ;";
  AdomdConnection connection = new AdomdConnection(connectionstr);
  connection.Open();

  string cmdstr = "select{[dim机台].[机台号]} on columns, {[dim材料厚度].[厚度大类].members} on rows from [Zlk DW]";
  AdomdCommand cmd = new AdomdCommand(cmdstr, connection);
  CellSet cs = cmd.ExecuteCellSet();
  DataTable dt = CellSetToTable(cs);


程序执行到 CellSet cs = cmd.ExecuteCellSet();就报错误。说无权访问数据库。我在分析服务的项目中就建立角色,添加了成员身份，在数据库中也配置了权限，IIs也设置了，但就是老报错啊，高手讲一下吧。

------解决方案--------------------
AdomdConnection conn = new AdomdConnection();
conn.ConnectionString = "provider=msolap ;Integrated Security =SSPI ;Data Source= localhost ;Catalog =[数据库名] ;";
conn.Open();
AdomdCommand comm = new AdomdCommand();
comm.Connection = conn;
string strMDX = "select from [cub名称] ";
comm.CommandText = strMDX;
CellSet cs = comm.ExecuteCellSet();