Comments for CTICoder

Comment on Entity Framework Error 3002 / Error 3003 by Thomas Liao

Thomas Liao — Thu, 19 Nov 2009 18:39:01 +0000

I have found the same error occurs when the set of key columns differs between the database schema and the entity definition. In my case, if found that two additional items in the mapping had been set as being part of the primary key for the entity set.

Comment on Windows 7 Slow. Constant Hard Drive Activity. by Jay

Jay — Mon, 16 Nov 2009 03:37:45 +0000

I suggest that Windows 7 may be indexing the hard drive. After just installing Win7, I found that my hard drive is going nuts, but I’m not having any other performance issues. I suspect that it will go away soon (I hope).

Comment on Using Enums with Entity Framework by g2-8ac32db29e5bc37f2baef574334d79c8

g2-8ac32db29e5bc37f2baef574334d79c8 — Wed, 11 Nov 2009 13:22:32 +0000

No.

Linq queries only work on EDM mapped-sql properties.

Comment on Using Enums with Entity Framework by Shimmy

Shimmy — Wed, 11 Nov 2009 13:05:32 +0000

The problem is that you can’t Linq with this t column (you can’t do WHERE tType = 4)

Comment on BizTalk 2009 and BTARN 3.5 on Windows Server 2008 Installation by Terry Thibodeau

Terry Thibodeau — Mon, 26 Oct 2009 21:55:01 +0000

THANK YOU, THANK YOU, THANK YOU. Man, this was soooo frustrating!!!!

Comment on Windows 7 Slow. Constant Hard Drive Activity. by ciro

ciro — Thu, 22 Oct 2009 01:02:41 +0000

Thanks man that solved it over here too judgin how many people is experiencing that u should have a monument,google on that to have a rogue idea on how widespread the problem is,strange is over here it happened only few days after the installation…

Comment on Windows 7 Slow. Constant Hard Drive Activity. by John

John — Sun, 18 Oct 2009 13:52:02 +0000

That was exactly my problem as well. I was starting to wonder if I should go back to Vista, but everything is normal now.
Thanks for the info.

Comment on Anonymous Workflow Execution in Sharepoint 2007 by majox

majox — Mon, 05 Oct 2009 09:52:33 +0000

I can’t execute the workflow I get the classic out of memory error

Comment on Object Inheritance in Entity Framework by Scott Taylor

Scott Taylor — Sun, 27 Sep 2009 18:06:52 +0000

I’m not clear on how using a guid instead of an int is going to appreciably “mitigate the size” of the base table. Either way, you’re going to have one row per object instance, no matter how deep or shallow the rest of the hierarchy is. Using a guid for the primary key does make sense, however, but for the usual reasons of ensuring uniqueness in various scenarios.

I would recommend that you stay away from the idea of trying to make a “smart key” out of a guid…facts used for constraints should *always* be stored as separate attributes….the guid key should *only* be used to express relationships between tables (as well as to ensure that individual records can be reliably selected).

As far as retrieval performance goes, a properly indexed table hierarchy will, if anything, be faster than retrieving records from a single table (as in the Table-Per-Hierarchy scenario). If you are concerned about selecting the entire set of records at once (for example, your database with 330,000 items), I would recommend using some form of the data repository pattern, where you can select just the records of interest from what amounts to a virtual database layer.

Comment on Anonymous Workflow Execution in Sharepoint 2007 by Shaun McDonnell

Shaun McDonnell — Mon, 21 Sep 2009 17:33:32 +0000

When you say it is not working, how do you mean?