49
votes
10
answers
1.2K
views
Which method performs better: .Any() vs .Count() > 0?
in the System.Linq namespace, we can now extend our IEnumerable's to have the Any() and Count() extension
60
votes
20
answers
3.1K
views
Dynamic LINQ OrderBy on IEnumerable<T> / IQueryable<T>
I found an example in the VS2008 Examples for Dynamic LINQ that allows you to use a sql-like string (e.g. Orde
58
votes
14
answers
536
views
Using LINQ to remove elements from a List<T>
Say that I have LINQ query such as: var authors = from x in authorsList where x.firstname == "B
57
votes
10
answers
991
views
IEnumerable vs List - What to Use? How do they work?
I have some doubts over how Enumerators work, and LINQ. Consider these two simple selects: List<Animal>
58
votes
12
answers
837
views
LINQ Aggregate algorithm explained
This might sound lame, but I have not been able to find a really good explanation of Aggregate. Good means s
60
votes
22
answers
2.8K
views
LINQ equivalent of foreach for IEnumerable<T>
I'd like to do the equivalent of the following in LINQ, but I can't figure out how: IEnumerable<
60
votes
14
answers
3K
views
When to use .First and when to use .FirstOrDefault with LINQ?
I've searched around and haven't really found a clear answer as to when you'd want to use .Firs
53
votes
14
answers
907
views
Group By Multiple Columns
How can I do GroupBy multiple columns in LINQ Something similar to this in SQL: SELECT * FROM <TableName>
63
votes
23
answers
279
views
LINQ query on a DataTable
I'm trying to perform a LINQ query on a DataTable object and bizarrely I am finding that performing such
57
votes
10
answers
2K
views
Group by in LINQ
Let's suppose if we have a class like: class Person { internal int PersonID; internal string c
62
votes
14
answers
1.3K
views
Returning IEnumerable<T> vs. IQueryable<T>
What is the difference between returning IQueryable<T> vs. IEnumerable<T>, when should one be pref
53
votes
19
answers
2.2K
views
Difference Between Select and SelectMany
I've been searching the difference between Select and SelectMany but I haven't been able to find a s
64
votes
22
answers
1.3K
views
LINQ's Distinct() on a particular property
I am playing with LINQ to learn about it, but I can't figure out how to use Distinct when I do not have a
51
votes
9
answers
3.1K
views
Returning a file to View/Download in ASP.NET MVC
I'm encountering a problem sending files stored in a database back to the user in ASP.NET MVC. What I wan
66
votes
9
answers
1.1K
views
How to pass json POST data to Web API method as an object?
ASP.NET MVC4 Web API application defines post method to save customer. Customer is passed in json format in PO
64
votes
6
answers
335
views
HTML.ActionLink vs Url.Action in ASP.NET Razor
Is there any difference between HTML.ActionLink vs Url.Action or they are just two ways of doing the same thin
62
votes
6
answers
2K
views
How can I get the client's IP address in ASP.NET MVC?
I'm totally new to the ASP.NET MVC stack, and I was wondering what happened to the simple Page object and
65
votes
8
answers
2.4K
views
How to use dashes in HTML-5 data-* attributes in ASP.NET MVC
I am trying to use HTML5 data- attributes in my ASP.NET MVC 1 project. (I am a C# and ASP.NET MVC newbie.) &
70
votes
4
answers
2.7K
views
ValidateAntiForgeryToken purpose, explanation and example
Could you explain ValidateAntiForgeryToken purpose and show me example about ValidateAntiForgeryToken in MVC 4
60
votes
23
answers
2K
views
Html.ActionLink as a button or an image, not a link
In the latest (RC1) release of ASP.NET MVC, how do I get Html.ActionLink to render as a button or an image ins
