tags:

views:

221

answers:

4
+2  Q: 

SQL Server 2005 UniqueIdentifier and C# Data Type.

Hi

What is the best data type to choose in C# for representing a SQL Serer UniqueIdentifier type? I'm was going to use a GUID but I've seen people using varChars.

Thanks

+3  A: 

System.Guid is what you need.

You can learn about CLR equivalents of SQL data types in this article:

SQL Server Data Types and Their .NET Framework Equivalents

Developer Art  2009-11-01 13:18:10
correct answer due to the helpful link also provided.
Davy  2009-11-01 14:44:41
+2  A: 

GUID is the best choice.

Jamie Ide  2009-11-01 13:18:51
Thanks - vote up
Davy  2009-11-02 00:51:07
+4  A: 

Whenever I use a uniqueidentifier sql data type I always map it to a Guid in C#. I don't think I've ever seen it done differently.

Joseph  2009-11-01 13:18:57
+1. People using varchars to represent GUIDs or strings to represent UNIQUEIDENTIFIER are using the *wrong type*.
Dave Markle  2009-11-01 13:25:24
Thanks - vote up.
Davy  2009-11-01 14:45:12
+1  A: 

GUID is the direct comparison.

Martin  2009-11-01 13:19:34
Thanks - vote up
Davy  2009-11-01 14:45:50

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