July 2015
Intermediate to advanced
1300 pages
87h 27m
English
Content preview from Visual Basic 2015 UnleashedBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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ConcurrentDictionary(Of TKey, TValue)
The ConcurrentDictionary collection has the same purpose as its thread-unsafe counterpart, but it differs in how methods work. All methods for adding, retrieving, and removing items return a Boolean value indicating success or failure, and their names all start with Try. The following code shows an example:
'Where String is for names and Integer for agesDim cd As New ConcurrentDictionary(Of String, Integer)Dim result As Boolean'Adding some itemsresult = cd.TryAdd("Alessandro", 37)result = cd.TryAdd("Nadia", 31)result = cd.TryAdd("Robert", 38)'Removing an itemresult = cd.TryRemove("Nadia", 31)'Getting a value for the specified keyDim value As Integerresult = cd.TryGetValue("Alessandro", ...
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