使用 LINQ 打印工资在 6000 到 8000 之间的员工的 C# 程序

LINQ 被称为语言集成查询，它是在 .NET 3.5 中引入的。它使.NET语言能够生成查询以从数据源中检索数据。它消除了编程语言和数据库之间的不匹配，并且无论使用哪种类型的数据源，用于创建查询的语法都是相同的。在本文中，我们将使用 LINQ 获取工资在 6000 到 8000 之间的员工详细信息。

例子：

Input:
List of employees:
      {{emp_id = 101, emp_name = "bobby", emp_age = 12, emp_salary = 2000}}
Output:
No Output
      
Input:
List of employees:
     {{emp_id = 101, emp_name = "bobby",  emp_age = 12, emp_salary = 8900},
      {emp_id = 102, emp_name = "deepu",  emp_age = 15, emp_salary = 7000},
      {emp_id = 103, emp_name = "manoja", emp_age = 13, emp_salary = 6700}}
Output:
      {{emp_id = 102, emp_name = "deepu",  emp_age = 15, emp_salary = 7000},
       {emp_id = 103, emp_name = "manoja", emp_age = 13, emp_salary = 6700}}

方法：

To display the employee details whose salary is between 6000 and 8000 follow the following approach:

1. Create a list of employees with four variables (Id, name, department, and salary)
2. Iterate through the employee details by using where function and get the employee details by choosing employee salary between 6000 and 8000.
3. Select the details which are between 6000 and 8000
4. Call the ToString method
5. Display the employee details

例子：

C#

// C# program to display the details of the employee's
// whose salary is between 6000 and 8000 
// using LINQ.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
  
class Employee{
      
// Declare 4 variables - id,age, name and salary
int emp_id; 
string emp_dept;
string emp_name;
int emp_salary;
  
// Get the to string method that returns id,
// name, age and salary
public override string ToString()
{
    return emp_id + " " + emp_name + " " + 
           emp_dept + " " + emp_salary;
}
  
// Driver code
static void Main(string[] args)
{
      
    // Declare a list variable 
    List emp = new List()
    {
          
        // Create 3 employee details
        new Employee{ emp_id = 101, emp_name = "bobby", 
                      emp_dept = "HR", emp_salary = 8900  },
        new Employee{ emp_id = 102, emp_name = "deepu", 
                      emp_dept = "Development", emp_salary = 7000 },
        new Employee{ emp_id = 103, emp_name = "manoja", 
                      emp_dept = "HR", emp_salary = 6700 }};
                        
    // Iterate the Employee by selecting Employee id
    // greater than 101 using where function
    IEnumerable Query = 
    from employee in emp where employee.emp_salary >= 6000 &&
    employee.emp_salary <= 8000 select employee;
  
    // Display employee details
    Console.WriteLine("ID  Name  Department Salary");
    Console.WriteLine("+++++++++++++++++++++++++++");
    foreach (Employee e in Query)
    {
          
        // Call the to string method
        Console.WriteLine(e.ToString());
    }
}
}

输出：

ID  Name  Department Salary
+++++++++++++++++++++++++++
102 deepu Development 7000
103 manoja HR 6700