System.Exception: cls_TblHangHoa::SelectBriefProduct::Error occured.A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified) ---> System.Data.SqlClient.SqlException: A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified) at System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject) at System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) at System.Data.SqlClient.SqlConnection.Open() at TrangVang_Admin.cls_tblHangHoa.SelectBriefProduct(String hh_id) in C:\LAMVIEC\Website\RIC\download.ric.vn\Code\App_Code\classes\cls_tblHangHoa.vb:line 191 at TrangVang_Admin.cls_tblNhomHangHoa.SelectSubMenu(Guid nhh_id) in C:\LAMVIEC\Website\RIC\download.ric.vn\Code\App_Code\classes\cls_tblNhomHangHoa.vb:line 494 --- End of inner exception stack trace --- at TrangVang_Admin.cls_tblHangHoa.SelectBriefProduct(String hh_id) in C:\LAMVIEC\Website\RIC\download.ric.vn\Code\App_Code\classes\cls_tblHangHoa.vb:line 198 at detail.Page_Load(Object sender, EventArgs e) in C:\LAMVIEC\Website\RIC\download.ric.vn\Code\detail.aspx.vb:line 58 Untitled Page

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