![]() However, if there is an implementation, it will be invoked as a regular method. So, if there is no definition other than the declaration for that partial method, the call is just ignored. For a brief, partial methods are defined as extensibility points in a class. If you take a look into the constructors of the DataContext subclass, you will notice that this partial method is called from all the overloaded versions of the constructors in the end.įor those who are new to Partial Methods, please see this MSDN documentation. We are interested in the method called OnCreated() here. ![]() Partial void OnCreated() // Other DataContext specific methods #endregion Usually, an auto generated DataContext subclass has a few partial method declarations like the following: Fortunately enough, the Visual Studio 2008 auto generated DataContext subclasses provide an easy way to achieve this target using extensibility through partial methods. We actually want to be able to change the default value of the CommandTimeout property and we want to do it efficiently. But the problem with this approach is, it will introduce code duplication and related issues. One solution to this problem is to set the value of the CommandTimeout before each time a LINQ to SQL DataContext object is created and such a query is invoked. Any database queries taking a longer time to complete than 30 seconds will throw a : Timeout expired Exception. ![]() The default value of the DataContext class's CommandTimeout is set to 30 seconds. LINQ to SQL codes that invoke a long running database query/stored procedure end up with a : Timeout expired Exception. The following article will present a way to achieve an application-wide CommandTimeout for your DataContext class. "" Version="6.0.At times, the execution of a LINQ to SQL query may take a longer time and exceed the default value of the DataContext class's CommandTimeout property. Expected behaviorĬommand fails after 30 seconds which is the default timeout. I am using a SQL Server 2012 with latest patch. Set up a SQL Server with a slow internet connection to be able to simulate this. SaveChanges completed for 'CancellationTokenTestContext' with 2 entities written to the database.ĭbug: 00:14:20.457 CoreEventId.ContextDisposed () Note This property is the cumulative time-out (for all network packets that are read during the invocation of a method) for all network reads during command execution or. ![]() Through The Model Settings Dialogue In The Config File On Query Level And the exception thrown by the. CommandTimeout has no effect when the command is executed against a context connection (a SqlConnection opened with 'context connectiontrue' in the connection string). Consider using 'DbContextOptionsBuilder.EnableSensitiveDataLogging' to see key values.ĭbug: 00:14:20.451 CoreEventId.SaveChangesCompleted () How to: Set The Command Timeout On Global Level. Consider using 'DbContextOptionsBuilder.EnableSensitiveDataLogging' to see key values.ĭbug: 00:14:20.443 CoreEventId.StateChanged ()Īn entity of type 'IMAGE_DATA' tracked by 'CancellationTokenTestContext' changed state from 'Added' to 'Unchanged'. Your migration might include a long-running task that exceeds the default command timeout value (30 seconds for SQL Server) resulting in an. WHERE = 1 AND = 00:14:20.325 RelationalEventId.DataReaderDisposing ()ĭbug: 00:14:20.335 RelationalEventId.TransactionCommitting ()ĭbug: 00:14:20.382 RelationalEventId.TransactionCommitted ()ĭbug: 00:14:20.393 RelationalEventId.ConnectionClosing ()Ĭlosing connection to database 'devRemin' on server 'myServer'.ĭbug: 00:14:20.408 RelationalEventId.ConnectionClosed ()Ĭlosed connection to database 'devRemin' on server 'myServer'.ĭbug: 00:14:20.419 RelationalEventId.TransactionDisposed ()ĭbug: 00:14:20.434 CoreEventId.StateChanged ()Īn entity of type 'IMAGE' tracked by 'CancellationTokenTestContext' changed state from 'Added' to 'Unchanged'. Info: 00:14:20.314 RelationalEventId.CommandExecuted ()Įxecuted DbCommand (316,587ms) (DbType = Int32), (Size = -1) (DbType = Binary)], CommandType='Text', CommandTimeout='30'] ![]()
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