紧急求救,十万火急。。。SelectCommand.Connection 属性尚未初始化
我的网站程序在2005下测试运行一切正常为什么发布后运行首页会出现这种情况。 
 “/WebAttendence”应用程序中的服务器错误。 
 --------------------------------------------   
 Fill:   SelectCommand.Connection   属性尚未初始化。    
 说明:   执行当前   Web   请求期间,出现未处理的异常。请检查堆栈跟踪信息,以了解有关该错误以及代码中导致错误的出处的详细信息。      
 异常详细信息:   System.InvalidOperationException:   Fill:   SelectCommand.Connection   属性尚未初始化。   
 源错误:        
 行   221:				custDA.SelectCommand   =   cmd; 
 行   222:				DataTable   dt   =   new   DataTable( "DataList "); 
 行   223:				custDA.Fill(dt); 
 行   224:		 
 行   225:				cmd.Parameters.Clear();        
 源文件:   D:\ninetowns\东莞指纹考勤\源代码\WorkAttendance\Ninetowns.WorkAttendance.OracleDAL\OraHelper.cs            行:   223      
 堆栈跟踪:        
 [InvalidOperationException:   Fill:   SelectCommand.Connection   属性尚未初始化。] 
          System.Data.Common.DbDataAdapter.GetConnection3(DbDataAdapter   adapter,   IDbCommand   command,   String   method)   +1381395 
          System.Data.Common.DbDataAdapter.FillInternal(DataSet   dataset,   DataTable[]   datatables,   Int32   startRecord,   Int32   maxRecords,   String   srcTable,   IDbCommand   command,   CommandBehavior   behavior)   +73 
          System.Data.Common.DbDataAdapter.Fill(DataTable[]   dataTables,   Int32   startRecord,   Int32   maxRecords,   IDbCommand   command,   CommandBehavior   behavior)   +162 
          System.Data.Common.DbDataAdapter.Fill(DataTable   dataTable)   +107 
          Ninetowns.WorkAttendance.OracleDAL.OraHelper.GetDataTable(String   connString,   CommandType   cmdType,   String   cmdText,   OracleParameter[]   cmdParms)   in   D:\ninetowns\东莞指纹考勤\源代码\WorkAttendance\Ninetowns.WorkAttendance.OracleDAL\OraHelper.cs:223 
          Ninetowns.WorkAttendance.OracleDAL.BaseT_EMPLOYEEDAL.GetAllSonT_EMPLOYEEs()   in   D:\ninetowns\东莞指纹考勤\源代码\WorkAttendance\Ninetowns.WorkAttendance.OracleDAL\BaseOracleDAL\BaseT_EMPLOYEEDAL.cs:177 
          Ninetowns.WorkAttendance.Business.BaseT_EMPLOYEEBusiness.GetAllSonT_EMPLOYEEs()   in   D:\ninetowns\东莞指纹考勤\源代码\WorkAttendance\Ninetowns.WorkAttendance.Business\BaseBusiness\BaseT_EMPLOYEEBusiness.cs:49 
          login.Page_Load(Object   sender,   EventArgs   e)   +18 
          System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr   fp,   Object   o,   Object   t,   EventArgs   e)   +15 
          System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object   sender,   EventArgs   e)   +43 
          System.Web.UI.Control.OnLoad(EventArgs   e)   +98 
          System.Web.UI.Control.LoadRecursive()   +71 
          System.Web.UI.Page.ProcessRequestMain(Boolean   includeStagesBeforeAsyncPoint,   Boolean   includeStagesAfterAsyncPoint)   +4313            
 -------------------------------------------- 
 版本信息:   Microsoft   .NET   Framework   版本:2.0.50727.42;   ASP.NET   版本:2.0.50727.42
------解决方案--------------------行 221:custDA.SelectCommand = cmd; 
 行 222:DataTable dt = new DataTable( "DataList "); 
 行 223:custDA.Fill(dt);