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.Css1.user(String ipkey, String rz, Int32 cl) +154
WebApplication1.api.ProcessRequest(HttpContext context) +499
SysteHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +814
System.Web.HttpApp