Professional LINQ

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Scott Klein

"Professional LINQ"

ToArray
The ToArray operator creates an array from an IEnumerable sequence. You may remember from previous
chapters that the ToArray operator forces immediate execution of the query. In the following
example, ToArray is used to query the first names from the Person.Contact table and return the results
as an array:
DataContext context = new DataContext("Initial Catalog =
AdventureWorks;Integrated Security=sspi");
Table contact = context.GetTable();
var query = contact.Select(con => con.FirstName).ToArray();
foreach (string item in query)
listBox1.Items.Add(item);
75
Part I: Introduction to Project LINQ
The following lists partial results of running this query:
Gustavo
Catherine
Kim
Humberto
Pilar
Frances
Margeret
Carla
Jay
ToDictionary
The ToDictionary operator inserts all the elements returned in the sequence into a Dictionary(Of TKey,
TValue). The following example uses the ToDictionary operator to create and populate a Dictionary(Of
TKey, TValue)and then iterate through that dictionary to populate a list box.

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An Account of the Customs and Manners of the Micmakis and Maricheets Savage Nations, Now Dependent on the Government of Cape-Breton (page 10) Danny's Own Story (page 180) Mrs. Falchion, Volume 2. (page 16)

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Scott Klein

"Professional LINQ"