堆栈跟踪:
[OleDbException (0x80040e07): 标准表达式中数据类型不匹配。]
System.Data.OleDb.OleDbCommand.ExecuteCommandTextErrorHandling(OleDbHResult hr) +1165704
System.Data.OleDb.OleDbCommand.ExecuteCommandTextForSingleResult(tagDBPARAMS dbParams, Object& executeResult) +247
System.Data.OleDb.OleDbCommand.ExecuteCommandText(Object& executeResult) +189
System.Data.OleDb.OleDbCommand.ExecuteCommand(CommandBehavior behavior, Object& executeResult) +58
System.Data.OleDb.OleDbCommand.ExecuteReaderInternal(CommandBehavior behavior, String method) +162
System.Data.OleDb.OleDbCommand.ExecuteNonQuery() +107
PageAdmin.master_login.vCBu9t9Jd6(String , DateTime ) +56
PageAdmin.master_login.oDeugsfqVr() +682
PageAdmin.master_login.Page_Load(Object src, EventArgs e) +156
System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +85
System.Web.UI.Control.OnLoad(EventArgs e) +74
System.Web.UI.Control.LoadRecursive() +120
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +2851
新手求组。弄了半天，还是不知道哪里错。
