dConnection,  DbConnectionInternal&  connection)  +941

      System.Data.ProviderBase.DbConnectionInternal.TryOpenConnectionInternal(DbConnection  outerConnection,  DbConnectionFactory  connectionFactory,  TaskCompletionSource`1  retry,  DbConnectionOptions  userOptions)  +143

      System.Data.ProviderBase.DbConnectionClosed.TryOpenConnection(DbConnection  outerConnection,  DbConnectionFactory  connectionFactory,  TaskCompletionSource`1  retry,  DbConnectionOptions  userOptions)  +17

      System.Data.SqlClient.SqlConnection.TryOpenInner(TaskCompletionSource`1  retry)  +139

      System.Data.SqlClient.SqlConnection.TryOpen(TaskCompletionSource`1  retry)  +448

      System.Data.SqlClient.SqlConnection.Open()  +130

      NewFolder1.Class1.user(String  ipkey,  String  rz,  Int32  cl)  +154

      WebApplication1.api.ProcessRequest(HttpContext  context)  +499

      System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()  +814

      System.Web.HttpApplication.ExecuteStepImpl(IExecutionStep  step)  +132

      Syst

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