Server Error in '/' Application.

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Line 252:			catch(Exception ex)
Line 253:			{
Line 254:				throw ex;
Line 255:			}
Line 256:			finally

[SqlException (0x80131904): Invalid column name 'del'.
Invalid column name 'CommentID'.
Invalid column name 'CommentName'.
Invalid column name 'UserColumn'.
Invalid column name 'CommentUserID'.
Invalid column name 'Commentsubject'.
Invalid column name 'AID'.
Invalid column name 'Bid'.
Invalid column name 'subject'.
Invalid column name 'PostTime'.
Invalid column name 'reTime'.
Invalid column name 'reply'.
Invalid column name 'abstract'.
Invalid column name 'content_len'.
Invalid column name 'del'.]
   JianHuaShe.DB.Pagination.Execute() in c:\Domains\jianhuashe.net\wwwroot\App_Code\CsCode\DB\Pagination.cs:254
   JianHuaShe._Default.Page_Load(Object sender, EventArgs e) in c:\Domains\jianhuashe.net\wwwroot\Default.aspx.cs:32
   System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +15
   System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +33
   System.EventHandler.Invoke(Object sender, EventArgs e) +0
   System.Web.UI.Control.OnLoad(EventArgs e) +99
   System.Web.UI.Control.LoadRecursive() +47
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1436