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Async notification when another application changes the database with entity framework 4.1 and DBContext

原文 2012-11-01 15:26:47 5 1 c#/ entity-framework/ dbcontext

I have a REST web service that is used for comunication with multiple clients, some sort of chat, but I have to make all the changes into the database as soon as the clients comunicate something and then inform all the others clients when a change is made.

I basically get a POST request and I have to reply as soon as an entry is mofified.

Now I make my thread sleep 1 second and then keep recreating the context every second for each request and if there are changes to the database I send the response. This looks ugly to me and I wonder if there is some event or async method to be notified when a specific entry in the database is modified?

Thank you Advance.

1 answers

If you're using MS SQL Server, you might have success with using Sql Dependencies. Here's a link to a brief tutorial: C# & SqlDependency - Monitoring your database for data changes .

Microsoft's successor to Notification Services, SQL Server 2008 R2 – Complex Event Processing (CEP) Technology might also serve your purposes, but I know nothing about it but what's on the web page.

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Async notification when another application changes the database with entity framework 4.1 and DBContext

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1 answers

solution1 1 2012-11-05 16:48:30

solution1
1 2012-11-05 16:48:30