Working with GUIDs

How many times do you need to represent something with a unique identifier? Probably very often. Examples are items with the same name but different characteristics. The .NET Framework enables you to create unique identifiers via the System.Guid structure (which is a value type). This lets you generate a unique 128-bit string as an identifier. To generate a unique identifier, you invoke the Guid.NewGuid method, which works as follows:

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'Declaring a GuidDim uniqueIdentifier As Guid'A unique identifieruniqueIdentifier = Guid.NewGuidConsole.WriteLine(uniqueIdentifier.ToString)'Another unique identifier,'although to the same variableuniqueIdentifier = Guid.NewGuidConsole.WriteLine(uniqueIdentifier.ToString) ...

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