[NullReferenceException: 未将对象引用设置到对象的实例。]
System.Data.OleDb.OleDbConnection.ValidateTransaction(OleDbTransaction transaction, String method) +30
System.Data.OleDb.OleDbCommand.ValidateConnectionAndTransaction(String method) +40
System.Data.OleDb.OleDbCommand.ExecuteReaderInternal(CommandBehavior behavior, String method) +51
System.Data.OleDb.OleDbCommand.ExecuteReader(CommandBehavior behavior) +110
DAL.DBHelperAes.ExecuteReader(String sql, OleDbParameter[] values) in E:\w味独珍官网\wdz_web\DAL\DBHelperAes.cs:164
DAL.ContactsService.getContactBySQL(String sql, OleDbParameter[] para) in E:\w味独珍官网\wdz_web\DAL\ContactsService.cs:19
DAL.ContactsService.getContactById(Int32 id) in E:\w味独珍官网\wdz_web\DAL\ContactsService.cs:210
BLL.ContactsManager.getContactById(Int32 id) in E:\w味独珍官网\wdz_web\BLL\ContactsManager.cs:35
newsShow.Page_Load(Object sender, EventArgs e) +206
System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +51
System.Web.UI.Control.OnLoad(EventArgs e) +95
System.Web.UI.Control.LoadRecursive() +59
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +678
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