Server Error in '/' Application.

等待的操作过时。

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: 等待的操作过时。

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:


[Win32Exception (0x80004005): 等待的操作过时。]

[SqlException (0x80131904): Connection Timeout Expired.  The timeout period elapsed while attempting to consume the pre-login handshake acknowledgement.  This could be because the pre-login handshake failed or the server was unable to respond back in time.  The duration spent while attempting to connect to this server was - [Pre-Login] initialization=1; handshake=15112; ]
   System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, UInt32 waitForMultipleObjectsTimeout, Boolean allowCreate, Boolean onlyOneCheckConnection, DbConnectionOptions userOptions, DbConnectionInternal& connection) +1303
   System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal& connection) +154
   System.Data.ProviderBase.DbConnectionFactory.TryGetConnection(DbConnection owningConnection, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal oldConnection, DbConnectionInternal& connection) +382
   System.Data.ProviderBase.DbConnectionInternal.TryOpenConnectionInternal(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions) +307
   System.Data.SqlClient.SqlConnection.TryOpenInner(TaskCompletionSource`1 retry) +198
   System.Data.SqlClient.SqlConnection.TryOpen(TaskCompletionSource`1 retry) +422
   System.Data.SqlClient.SqlConnection.Open() +189
   Maticsoft.DBUtility.DbHelperSQL.PrepareCommand(SqlCommand cmd, SqlConnection conn, SqlTransaction trans, String cmdText, SqlParameter[] cmdParms) in F:\job\y亚太口腔\git_ytkq_web2020\DBUtility\DbHelperSQL.cs:932
   Maticsoft.DBUtility.DbHelperSQL.Query(String SQLString, SqlParameter[] cmdParms) in F:\job\y亚太口腔\git_ytkq_web2020\DBUtility\DbHelperSQL.cs:903
   ytkq.DAl.kqEnpr.GetModel(Int32 ID) in F:\job\y亚太口腔\git_ytkq_web2020\DAL\kqEnpr.cs:368
   Recr_About.Page_Load(Object sender, EventArgs e) +214
   System.Web.UI.Control.OnLoad(EventArgs e) +99
   System.Web.UI.Control.LoadRecursive() +154
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +3912


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.7.3429.0