Server Error in '/' Application.

ExecuteReader requires an open and available Connection. The connection's current state is connecting.

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.InvalidOperationException: ExecuteReader requires an open and available Connection. The connection's current state is connecting.

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:


[InvalidOperationException: ExecuteReader requires an open and available Connection. The connection's current state is connecting.]
   System.Data.SqlClient.SqlConnection.GetOpenConnection(String method) +3305707
   System.Data.SqlClient.SqlConnection.ValidateConnectionForExecute(String method, SqlCommand command) +98
   System.Data.SqlClient.SqlCommand.ValidateCommand(String method, Boolean async) +310
   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) +155
   System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method) +83
   System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior behavior, String method) +198
   System.Data.Common.DbDataAdapter.FillInternal(DataSet dataset, DataTable[] datatables, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior) +201
   System.Data.Common.DbDataAdapter.Fill(DataSet dataSet, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior) +178
   System.Data.Common.DbDataAdapter.Fill(DataSet dataSet) +122
   DAL.DatabaseManager.CallStoredProcedure(String Store, SqlParameter[] p, Boolean b) +504
   DAL.DCollector.DBCollector.CallStored(String sql, Boolean b) +277
   DAL.DCollector.DBCollector.StoredSelectAllTable(String table) +107
   MyPhamXachTay.Controls.Slogan.Page_Load(Object sender, EventArgs e) +119
   System.Web.UI.Control.OnLoad(EventArgs e) +106
   System.Web.UI.Control.LoadRecursive() +68
   System.Web.UI.Control.LoadRecursive() +162
   System.Web.UI.Control.LoadRecursive() +162
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +3785


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.7.3282.0