How to use Any Method with Collection in LINQ

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By  pranay rana   On  14 Aug 2011 06:08:03
Tag : LINQ , General
In this article, I will share with you, how to use the Any method in LINQ.We can use this method in two differen ways, one is with collection and another one is without collection.
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In this article, I will share with you, how to use the Any method in LINQ.We can use this method in two differen ways, one is with collection and another one is without collection.


List<string> members =
         new List<string>() { "pranay", "Hemang" };
   bool ISCollectionEmpty = members.Any();

So by using method I get to know my collection has any element or not.So when I run above coe I get true in my boolean variable if there is not element it return flase.

Now cosider the below Database Table and  LINQ to SQL dbml file  

Department Table

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Employee table

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Entity Diagram

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As you can see there is one to many relationship between Department and Employee.

Problem Statement

Now Here I want to list out only those department whihc has employee.


Most of the people do the gorup by and make use of the join and then try to find out the department which has solution.

But the better solution to this is make use of Any() method available in the System.Linq for the collection as below

var deptList = from dept in dbcontext.Departments
                           where dept.Employees.Any()
                           select dept;
   foreach (var item in deptList)
      Console.WriteLine(item.Name + " : " + item.Employees.Count());


Image Loading

As you can see the above query fetch the those department only which has employee and remove the department those doesnt have any.I can easily able to get the cout of the employees in department using count method.

Sql query

When you see the Sql profiler or get the query in visual studio by watching variable.

SELECT [t0].[Id], [t0].[Name]
FROM [dbo].[Department] AS [t0]
  FROM [dbo].[Employee] AS [t1]
  WHERE [t1].[DeptId] = [t0].[Id]

Hopes help and thank you fo reading.

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About Author
pranay rana
Company-GMind Solusion
Member Type-Expert
Joined date-08 Jan 2011
Home Page-
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Hey, I am Pranay Rana, working as a Senior Software engineer in mid-size company located in ahmedabad. Web development in Asp.Net with C# and MS sql server are the experience tools that I have had for the past 4.3 years now. For me def. of programming is : Programming is something that you do once and that get used by multiple for many years You can visit me on my blog - StackOverFlow - My CV :-
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