發生例外錯誤::System.Data.SqlClient.SqlException (0x80131904): 已超過連接逾時的設定。在嘗試使用登入前的信號交換確認時超過逾時等待的時間。這可能是登入前的信號交換發生失敗,或伺服器無法及時回應所造成。 嘗試連接到這部伺服器所花費的時間為 - [登入前] 初始設定=12352; 信號交換=4781; ---> System.ComponentModel.Win32Exception (0x80004005): 等候操作已逾時。 於 System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, UInt32 waitForMultipleObjectsTimeout, Boolean allowCreate, Boolean onlyOneCheckConnection, DbConnectionOptions userOptions, DbConnectionInternal& connection) 於 System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal& connection) 於 System.Data.ProviderBase.DbConnectionFactory.TryGetConnection(DbConnection owningConnection, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal oldConnection, DbConnectionInternal& connection) 於 System.Data.ProviderBase.DbConnectionInternal.TryOpenConnectionInternal(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions) 於 System.Data.SqlClient.SqlConnection.TryOpenInner(TaskCompletionSource`1 retry) 於 System.Data.SqlClient.SqlConnection.TryOpen(TaskCompletionSource`1 retry) 於 System.Data.SqlClient.SqlConnection.Open() 於 System.Data.Common.DbDataAdapter.FillInternal(DataSet dataset, DataTable[] datatables, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior) 於 System.Data.Common.DbDataAdapter.Fill(DataSet dataSet, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior) 於 System.Data.Common.DbDataAdapter.Fill(DataSet dataSet) 於 DdsLib.DB.DoQuery(String SqlStr, List`1 ParamObjList, SqlConnection& conn) ClientConnectionId:29927bfa-7bba-49fd-885c-d3caf5489527 Error Number:-2,State:0,Class:11