使用 LINQ 打印姓氏为“n”的员工的 C# 程序
原文:https://www . geesforgeks . org/c-sharp-program-to-print-the-employees-of-name-n-use-linq/
LINQ 被称为语言集成查询，它是在年引入的。NET 3.5。它赋予了。NET 语言生成查询以从数据源检索数据。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，我们将研究如何使用 LINQ 打印姓氏为“n”的员工姓名列表。
示例:
Input : List of Employees:
{{id = 101, name = "Sravan", age = 12},
{id = 102, name = "deepu", age = 15},
{id = 103, name = "manoja", age = 13},
{id = 104, name = "Sathwik", age = 12},
{id = 105, name = "Saran", age = 15}}
Output: {{id = 105, name = "sravan", age = 15},
{id = 105, name = "Saran", age = 15}}
Input: List of Employees:
{{id = 102, name = "deepu", age = 15},
{id = 103, name = "manoja", age = 13}}
Output: No Output
进场:
要查找姓名以“n”字符结尾的员工列表，请执行以下步骤:
- 创建包含四个变量(身份证、姓名、部门和团队)的员工列表。
- 使用以下查询，通过选择以“n”结尾的员工姓名，循环查看员工详细信息并获取员工详细信息:
cs IEnumerable<Employee> Query = from emp in employees where emp.name[emp.name.Length - 1] == 'n' select emp;
- 现在调用 ToString()方法。
- 显示员工详细信息。
示例:
C
// C# program to display the list of employees
// whose last character of the name is 'n'
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
// Create a class with four variables
// employee id, name, and department
class Employee{
int id;
string name;
string department;
// To string method
public override string ToString()
{
return id + " " + name + " " + department;
}
// Driver code
static void Main(string[] args)
{
// Create list of employees with 5 data
List<Employee> emp = new List<Employee>()
{
new Employee{ id = 101, name = "Sravan",
department = "Development" },
new Employee{ id = 102, name = "deepu",
department = "HR" },
new Employee{ id = 103, name = "manoja",
department = "Development" },
new Employee{ id = 104, name = "Sathwik",
department = "Development" },
new Employee{ id = 105, name = "Saran",
department = "HR" }
};
// Condition to get employee name ends with 'n'
IEnumerable<Employee> result = from e in emp
where e.name[e.name.Length - 1] == 'n'
select e;
Console.WriteLine("ID Name Department");
Console.WriteLine("++++++++++++++++++++");
// Iterating the employee data to display
// By calling the to string method
foreach (Employee x in result)
{
Console.WriteLine(x.ToString());
}
}
}
输出:
ID Name Department
++++++++++++++++++++
101 Sravan Development
105 Saran HR
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