DevForce Community Forum : ConcurrencyCheck http://www.ideablade.com/forum/ This is an XML content feed of; DevForce Community Forum : Community Forum : ConcurrencyCheck Sat, 11 Apr 2026 02:03:15 -700 Sat, 16 Feb 2013 13:23:00 -700 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 9.69 360 www.ideablade.com/forum/RSS_post_feed.asp?TID=3992 DevForce Community Forum http://www.ideablade.com/forum/forum_images/IdeaBlade_logo_tm.png http://www.ideablade.com/forum/ ConcurrencyCheck : Great, nice feature. Greg http://www.ideablade.com/forum/forum_posts.asp?TID=3992&PID=15871#15871 Author: gregweb
Subject: 3992
Posted: 16-Feb-2013 at 1:23pm

Great, nice feature.

Greg]]> Sat, 16 Feb 2013 13:23:00 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=3992&PID=15871#15871 ConcurrencyCheck : 1. I simply prefer row version,... http://www.ideablade.com/forum/forum_posts.asp?TID=3992&PID=15870#15870 Author: mgood
Subject: 3992
Posted: 16-Feb-2013 at 1:14pm

1. I simply prefer row version, so I know how many times the record has been modified. 

2. ConcurrencyCheckAttribute is the only attribute required to enable concurrency checking. If you use timestamp then that's all you need, because the database is automatically setting the timestamp. ConcurrencyStrategyAttribute is a DevForce attribute. The database won't automatically increment a row version, so the attribute is telling DevForce to increment it.
]]> Sat, 16 Feb 2013 13:14:42 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=3992&PID=15870#15870 ConcurrencyCheck : I notice in Cocktail that in AuditEntityBase,... http://www.ideablade.com/forum/forum_posts.asp?TID=3992&PID=15869#15869 Author: gregweb
Subject: 3992
Posted: 16-Feb-2013 at 12:33pm

I notice in Cocktail that in AuditEntityBase, there is this property:

        [DataMember]
        [ConcurrencyCheck]
        [ConcurrencyStrategy(ConcurrencyStrategy.AutoIncrement)]
        public int RowVersion { get; internal set; }

If I test this with two simultaneous instance of TempHire, I do indeed get a messagebox saying that the record had been previously saved by another user.

So two questions:

1. Most of the samples I have seen has used TimeStamp as the data type instead of int. Any particular reason for using int instead?

2. Is there anything else required to concurrency checking other than using the above attributes? ]]> Sat, 16 Feb 2013 12:33:14 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=3992&PID=15869#15869