Aggregation
Aggregate, Average, Count, LongCount, Max, Min, Sum
Conversion
AsEnumerable, Cast, OfType, ToArray, ToDictionary, ToList, ToLookup
Element
ElementAt, ElementAtOrDefault, First, FirstOrDefault, Last, LastOrDefault, Single, SingleOrDefault
ElementAt
ElementAtOrDefault
First (simple)
First (conditional)
FirstOrDefault
Last
LastOrDefault (simple)
LastOrDefault (conditional)
Single
SingleOrDefault
Generation
DefaultIfEmpty, Empty, Range, Repeat
Grouping
GroupBy
Join
GroupJoin, Join
Ordering
OrderBy, OrderByDescending, Reverse, ThenBy, ThenByDescending
OrderBy (simple - numbers)
OrderBy (simple - dates)
OrderBy (simple - objects)
OrderByDescending
Reverse
ThenBy
ThenByDescending
Other
Concat, SequenceEqual, Zip
Partitioning
Skip, SkipWhile, Take, TakeWhile
Projection
Select, SelectMany
Quantifiers
All, Any, Contains
Restriction
Where
Set
Distinct, Except, Intersect, Union
Close
Concat: Concatenates (combines) two collections.
| Concat: Concatenates (combines) two collections. |
| Concat: Concatenates (combines) two collections. |
| This Lambda Expression sample concatenates two arrays of strings. |
| This Lambda Expression sample concatenates two arrays of strings. |
// A Query Expression cannot be constructed for Concat() in C#. // Consider using a Lambda Expression instead.
' A Query Expression cannot be constructed for Concat() in VB.NET. ' Consider using a Lambda Expression instead.
// A Query Expression cannot be constructed for Concat() in F#. // Consider using a Lambda Expression instead.
static void Sample_Concat_Lambda_Strings()
{
string[] vegetables = { "Tomato", "Cucumber", "Carrot" };
string[] fruits = { "Apples", "Grapes", "Banana" };
var result = vegetables.Concat(fruits);
Debug.WriteLine("Concatinating vegetables and fruits gives:");
foreach (string piece in result)
Debug.WriteLine(piece);
}
Output: Concatinating vegetables and fruits gives: Tomato Cucumber Carrot Apples Grapes Banana
Private Shared Sub Sample_Concat_Lambda_Strings()
Dim vegetables As String() = {"Tomato", "Cucumber", "Carrot"}
Dim fruits As String() = {"Apples", "Grapes", "Banana"}
Dim result = vegetables.Concat(fruits)
Debug.WriteLine("Concatinating vegetables and fruits gives:")
For Each piece As String In result
Debug.WriteLine(piece)
Next
End Sub
Output: Concatinating vegetables and fruits gives: Tomato Cucumber Carrot Apples Grapes Banana
let Sample_Concat_Linq_Strings() =
let vegetables = [|"Tomato"; "Cucumber"; "Carrot"|]
let fruits = [|"Apples"; "Grapes"; "Banana"|]
let result = vegetables.Concat(fruits)
Debug.WriteLine(sprintf "Concatenating vegetables and fruits gives:")
for piece in result do
Debug.WriteLine(sprintf "%s" piece)
Output: Concatenating vegetables and fruits gives: Tomato Cucumber Carrot Apples Grapes Banana