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Converting SQL Server uniqueidentifier to .NET Guid type
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From
24/03/2009 10:35:28
Mike Cole
Yellow Lab Technologies
Stanley, Iowa, United States
 
 
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General information
Forum:
ASP.NET
Category:
ADO.NET
Title:
Converting SQL Server uniqueidentifier to .NET Guid type
Environment versions
Environment:
C# 3.0
Database:
MS SQL Server
Miscellaneous
Thread ID:
01391015
Message ID:
01391015
Views:
120
Hopefully somebody can provide a better way of doing this. The UserId field in my datareader is uniqueidentifier type in SQL Server.
Guid UserId = new Guid(Convert.ToString(reader["UserId"]));
Would this be better (more efficent):
Guid UserId  = (Guid) reader["UserId"];
Overall, is it better to use the System.Convert method or do a cast like the second example?
Very fitting: http://xkcd.com/386/
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