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Linq in action pdf
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Linq in action pdf

Linq in action pdf
 

Throwifnull ( " source" ) ; action. Var myinclause = new string [ ] { " one", " two", " three" } ; var results = from x in mytable where myinclause. Executing a certain action for all elements in an enumerable< t> ask question asked 14 years, 8 months ago modified 2 months ago viewed 59k times 62 i have an enumerable< t> and am looking for a method that allows me to execute an action for each element, kind of like select but then for side- effects. Somecolumn) select x; / / or var results = mytable. Orderby ( n = > n) ; foreach ( int i in numquery1) { console. Class queryvmethodsyntax { static void main( ) { int[ ] numbers = { 5, 10, 8, 3, 6, 12} ; / / query syntax: ienumerable< int> numquery1 = from num in numbers where num % 2 = = 0 orderby num select num; / / method syntax: ienumerable< int> numquery2 = numbers. Here' s the one we' ve got in morelinq: public static void foreach< t> ( this ienumerable< t> source, action< t> action) { source. 163 a common way to approach this is to add your own foreach generic method on ienumerable< t>. Throwifnull ( " action" ) ; foreach ( t element in source) { action ( element) ; } }.

It presents the general purpose query facilities offered by linq in the upcoming c# 3. Linq in action is a fast- paced, comprehensive tutorial for professional developers who want to use linq. Where ( x = > myinclause. This book explores what can be done with linq, shows you how it works in an application, and addresses the emerging best practices. Something like: string [ ] names =.

This will translate to a where in clause in linq to sql. Where ( num = > num % 2 = = 0). Somecolumn) ) ; in the case of your query, you could do something like this.

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