“/”应用程序中的服务器错误。

ExecuteReader: CommandText 属性尚未初始化

说明: 执行当前 Web 请求期间,出现未经处理的异常。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: ExecuteReader: CommandText 属性尚未初始化

源错误:


行 74:             cmd.Parameters.Add("@bookid", Convert.ToInt32(Application["bookid"]));
行 75:             cmd.Connection = conn;
行 76:             SqlDataReader dr = cmd.ExecuteReader();
行 77:             dr.Read();
行 78:             this.AspNetPager1.RecordCount = Convert.ToInt32(dr[0]);

源文件: d:\正式网站\上海医学\note.aspx.cs    行: 76

堆栈跟踪:


[InvalidOperationException: ExecuteReader: CommandText 属性尚未初始化]
   System.Data.SqlClient.SqlCommand.ValidateCommand(String method, Boolean async) +6553853
   System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, TaskCompletionSource`1 completion, Int32 timeout, Task& task, Boolean asyncWrite) +151
   System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method) +104
   System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior behavior, String method) +288
   System.Data.SqlClient.SqlCommand.ExecuteReader() +302
   note.Page_Load(Object sender, EventArgs e) in d:\正式网站\上海医学\note.aspx.cs:76
   System.Web.UI.Control.LoadRecursive() +71
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +3178


版本信息: Microsoft .NET Framework 版本:4.0.30319; ASP.NET 版本:4.0.30319.34009