SQL Server 2005 UniqueIdentifier and C# Data Type

What is the best data type to choose in C# for representing a SQL Server UniqueIdentifier type? I was going to u开发者_运维百科se a GUID but I've seen people using varChars.

Thanks

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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

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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.

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GUID is the best choice.

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GUID is the direct comparison.