c# Programming Glossary: firstordefault
Order of LINQ extension methods does not affect performance? http://stackoverflow.com/questions/10110013/order-of-linq-extension-methods-does-not-affect-performance or append LINQ extension methods. Tested with Enumerable.FirstOrDefault hugeList.Where x x.Text.Contains 10000 .FirstOrDefault hugeList.FirstOrDefault.. hugeList.Where x x.Text.Contains 10000 .FirstOrDefault hugeList.FirstOrDefault x x.Text.Contains 10000 var hugeList.. x x.Text.Contains 10000 .FirstOrDefault hugeList.FirstOrDefault x x.Text.Contains 10000 var hugeList Enumerable.Range 1 50000000..
When to use .First and when to use .FirstOrDefault with LINQ? http://stackoverflow.com/questions/1024559/when-to-use-first-and-when-to-use-firstordefault-with-linq to use .First and when to use .FirstOrDefault with LINQ I've searched around and haven't really found a clear.. when you'd want to use .First and when you'd want to use .FirstOrDefault with LINQ. When would you want to use .First Only when you'd.. List.Where x x foo .First And when would you want to use .FirstOrDefault When you'd always want the default type if no result var result..
IQueryable extension method for linq2entities http://stackoverflow.com/questions/10826275/iqueryable-extension-method-for-linq2entities an existing .NET extension method that I knew to work FirstOrDefault and simply renamed it. It would seem like it would evaluate.. .Name .ToList My extension method which is just a copy of FirstOrDefault that I renamed public static TSource AsOf TSource this IQueryable.. AsOf source DateTime asOf to do is soemthing like source.FirstOrDefault IHistory s s.EndDate asOf asOf s.StartDate but I'm not sure..
Can I use extension methods and Linq in .NET 2.0 or 3.0? http://stackoverflow.com/questions/11346554/can-i-use-extension-methods-and-linq-in-net-2-0-or-3-0 or the source collection was empty. public static TSource FirstOrDefault TSource this IEnumerable TSource source if source null throw..
Anyone know a quick way to get to custom attributes on an enum value? http://stackoverflow.com/questions/17772/anyone-know-a-quick-way-to-get-to-custom-attributes-on-an-enum-value fi.GetCustomAttributes typeof CustomInfoAttribute false . FirstOrDefault Linq method to get first or null as CustomInfoAttribute use..
InvokeMember(“click”) webBrowser help http://stackoverflow.com/questions/2654442/invokememberclick-webbrowser-help that the button exists you're probably better off using FirstOrDefault and checking for a null return value as '.First' will crash.. element .ToList HtmlElement submitButton buttonControls.FirstOrDefault x x.InnerText Accept if submitButton null submitButton.InvokeMember..
LIKE operator in LINQ http://stackoverflow.com/questions/5374481/like-operator-in-linq for that not to be the case. Options of SingleOrDefault FirstOrDefault or First should be used depending on exactly what's expected...
foreach + break vs linq FirstOrDefault performance difference http://stackoverflow.com/questions/8214055/foreach-break-vs-linq-firstordefault-performance-difference break vs linq FirstOrDefault performance difference I have two classes that perform date.. public TItem GetItem DateTime day return this.items.FirstOrDefault i i.IsWithinRange day Then I do speed tests which show that.. This would make it much slower because with every call to FirstOrDefault linq would also perform OrderByDescending . But that's not the..
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