I have a LINQ to SQL/Unity/ASP.NET MVC/SQL Server application hosted on Azure. I am using Lazy Evaluation throughout the whole site. The Application is using a TCP connection to SQL Server and every so often I get a “A transport-level error has occurred when sending the request to the server.” SqlException.
Well since the the query is getting materialized when it is called later in code, I can’t just wrap a specific piece of code with a try/catch.
Is there a way that I can handle this exception by implementing an interface or attaching a delegate to the DataContext?
If you use the results from linq as-is, then you have to handle the error in the code that materializes the data. However, instead of simply returning the linq query results directly, you could wrap it in an IEnumerable implementation of your own design, which is free to implement whatever error handling you like. This way the code that consumes the IEnumerable doesn’t have to handle the exception.