Excel - Hàm Dsum, Hàm Tính Tổng Có điều Kiện, Ví Dụ Và Cách Dùng

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Server Error in '/' Application.

Access is denied

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: Access is denied 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): Access is denied] [SqlException (0x80131904): 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: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)] System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, UInt32 waitForMultipleObjectsTimeout, Boolean allowCreate, Boolean onlyOneCheckConnection, DbConnectionOptions userOptions, DbConnectionInternal& connection) +353 System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal& connection) +118 System.Data.ProviderBase.DbConnectionFactory.TryGetConnection(DbConnection owningConnection, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal oldConnection, DbConnectionInternal& connection) +268 System.Data.ProviderBase.DbConnectionInternal.TryOpenConnectionInternal(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions) +315 System.Data.SqlClient.SqlConnection.TryOpenInner(TaskCompletionSource`1 retry) +128 System.Data.SqlClient.SqlConnection.TryOpen(TaskCompletionSource`1 retry) +265 System.Data.SqlClient.SqlConnection.Open() +133 PSCPortal.Engine.SubDomain.GetSubByName(String subName) in G:\PSC_Git\Portal_VHU\Source\PSCPortal_Sln\Source\PSCPortal.Engine\SubDomain.cs:277 PSCPortal.Global.Session_Start(Object sender, EventArgs e) +134 System.Web.SessionState.SessionStateModule.CompleteAcquireState() +375 System.Web.SessionState.SessionStateModule.BeginAcquireState(Object source, EventArgs e, AsyncCallback cb, Object extraData) +1257 System.Web.AsyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +703 System.Web.HttpApplication.ExecuteStepImpl(IExecutionStep step) +75 System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +158
Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.8.4718.0

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