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System.Data.SqlClient.SqlException (0x80131904): 在與 SQL Server 建立連接時(shí)出現(xiàn)與網(wǎng)絡(luò)相關(guān)的或特定于實(shí)例的錯(cuò)誤。未找到或無(wú)法訪問(wèn)服務(wù)器。請(qǐng)驗(yàn)證實(shí)例名稱(chēng)是否正確并且 SQL Server 已配置為允許遠(yuǎn)程連接。 (provider: Named Pipes Provider, error: 40 - 無(wú)法打開(kāi)到 SQL Server 的連接) ---> System.ComponentModel.Win32Exception (0x80004005): 找不到網(wǎng)絡(luò)路徑。
在 System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, UInt32 waitForMultipleObjectsTimeout, Boolean allowCreate, Boolean onlyOneCheckConnection, DbConnectionOptions userOptions, DbConnectionInternal& connection)
在 System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal& connection)
在 System.Data.ProviderBase.DbConnectionFactory.TryGetConnection(DbConnection owningConnection, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal oldConnection, DbConnectionInternal& connection)
在 System.Data.ProviderBase.DbConnectionInternal.TryOpenConnectionInternal(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions)
在 System.Data.SqlClient.SqlConnection.TryOpenInner(TaskCompletionSource`1 retry)
在 System.Data.SqlClient.SqlConnection.TryOpen(TaskCompletionSource`1 retry)
在 System.Data.SqlClient.SqlConnection.Open()
在 DataBase.Open() 位置 d:\wwwroot\nmpx.cn\App_Code\database.cs:行號(hào) 44
在 DataBase.getDataTable(String sql) 位置 d:\wwwroot\nmpx.cn\App_Code\database.cs:行號(hào) 142
ClientConnectionId:00000000-0000-0000-0000-000000000000
Error Number:53,State:0,Class:20
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