In this post i will show some basic queries which we can make on the array in .Net environment.
First of all we will see LINQ query for integer array.
1: int[] intArray = { 1, 5, 7, 15, 19, 20 };
2: var query = from i in intArray
3: where i % 5 == 0
4: select i;
In above example i had defined an integer array as intArray. above LINQ query will select all the integer value which can be divisible with 5.
So its output will be {5, 15, 20}
This was basically searching functionality. Now if you need to sum all the values within array, you can achieve it with below LINQ statement
1: int sum = intArray.Sum();
And it will give you sum of all the array
For average the array in LINQ you need to write
1: int avg = intArray.Average();
Now lets take another example of a string array.
1: string[] strArray = {"red", "blue","green", "black", "yellow" };
2: var query = from s in strArray
3: where s.StartsWith("b")
4: select s;
Now in this example i have an array of string containing various color name. Above LINQ query will select all the name that starting with be.
So its output will be {“blue”, “black”}
LINQ provide developers a great way to use logic that we can build in C# and LINQ will handle it.
There are much more functionality LINQ provides like concate, reverse, first, last, etc.
Posts
