The wait operation timed out in devexpress report

Description:

An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details:

System.ComponentModel.Win32Exception: The wait operation timed out

Source Error:

Line 1399:                dataTable.Clear();
Line 1400:            }
Line 1401:            int returnValue = this.Adapter.Fill(dataTable);
Line 1402:            return returnValue;
Line 1403:        }

Source File: c:\Users\PC\AppData\Local\Temp\Temporary ASP.NET Files\vs\8562cbc5\e7d18687\App_Code.ilsptr20.77.cs    Line: 1401 

Stack Trace: 


[Win32Exception (0x80004005): The wait operation timed out]

[SqlException (0x80131904): Execution Timeout Expired.  The timeout period elapsed prior to completion of the operation or the server is not responding.]
   System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction) +212
   System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction) +81
   System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose) +631
   System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj, Boolean& dataReady) +4234
   System.Data.SqlClient.SqlDataReader.TryConsumeMetaData() +58
   System.Data.SqlClient.SqlDataReader.get_MetaData() +89
   System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString, Boolean isInternal, Boolean forDescribeParameterEncryption, Boolean shouldCacheForAlwaysEncrypted) +438
   System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async, Int32 timeout, Task& task, Boolean asyncWrite, Boolean inRetry, SqlDataReader ds, Boolean describeParameterEncryptionRequest) +2620
   System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, TaskCompletionSource`1 completion, Int32 timeout, Task& task, Boolean& usedCache, Boolean asyncWrite, Boolean inRetry) +1635
   System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method) +64
   System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior behavior, String method) +244
   System.Data.SqlClient.SqlCommand.ExecuteDbDataReader(CommandBehavior behavior) +37
   System.Data.Common.DbCommand.System.Data.IDbCommand.ExecuteReader(CommandBehavior behavior) +10
   System.Data.Common.DbDataAdapter.FillInternal(DataSet dataset, DataTable[] datatables, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior) +138
   System.Data.Common.DbDataAdapter.Fill(DataTable[] dataTables, Int32 startRecord, Int32 maxRecords, IDbCommand command, CommandBehavior behavior) +157
   System.Data.Common.DbDataAdapter.Fill(DataTable dataTable) +106
   DSFinalPercentageTableAdapters.spTotalPercentageTableAdapter.FillByClass(spTotalPercentageDataTable dataTable, Nullable`1 classid, Nullable`1 eng) in c:\Users\PC\AppData\Local\Temp\Temporary ASP.NET Files\vs\8562cbc5\e7d18687\App_Code.ilsptr20.77.cs:1401
   xpTotalPercentage.xpTotalPercentage_BeforePrint(Object sender, PrintEventArgs e) in f:\Slim\App_Code\xpTotalPercentage.cs:452
   DevExpress.XtraReports.UI.XRControl.OnBeforePrint(PrintEventArgs e) +262
   DevExpress.XtraReports.UI.XtraReport.OnBeforePrint(PrintEventArgs e) +304
   DevExpress.XtraReports.UI.XtraReport.TryCreateDocumentCore(Single progressRange, Boolean buildPagesInBackground) +44
   DevExpress.XtraReports.UI.XtraReport.TryCreateDocument(Single progressRange, Boolean buildPagesInBackground) +78

[Exception: Execution Timeout Expired.  The timeout period elapsed prior to completion of the operation or the server is not responding.]
   DevExpress.XtraPrinting.PrintingSystemBase.OnCreateDocumentException(ExceptionEventArgs args) +175
   DevExpress.XtraReports.UI.XtraReport.TryCreateDocument(Single progressRange, Boolean buildPagesInBackground) +298
   DevExpress.XtraReports.UI.XtraReport.CreateDocument(Boolean buildForInstantPreview) +12
   DevExpress.XtraReports.UI.XtraReport.CreateDocument() +15
   Forms_StudentFinalPercentageReport.getReport() in f:\Slim\Forms\StudentFinalPercentageReport.aspx.cs:122
   Forms_StudentFinalPercentageReport.Page_Load(Object sender, EventArgs e) in f:\Slim\Forms\StudentFinalPercentageReport.aspx.cs:23
   System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +85
   System.Web.UI.Control.OnLoad(EventArgs e) +79
   System.Web.UI.Adapters.ControlAdapter.OnLoad(EventArgs e) +12
   System.Web.UI.Control.LoadRecursive() +98
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +2853