复制代码 代码如下:

static void Main(string[] args)

{

Employee employee = new Employee();

//设置初始值

List<Employee> employeeList = new List<Employee>();

employeeList.Add(new Employee() { EmpId = "001", EmpName = "Tony" });

employeeList.Add(new Employee() { EmpId = "002", EmpName = "Mack" });

employeeList.Add(new Employee() { EmpId = "003", EmpName = "Jon" });

employeeList.Add(new Employee() { EmpId = "004", EmpName = "Dawei" });

employeeList.Add(new Employee() { EmpId = "005", EmpName = "Jack" });

employeeList.Add(new Employee() { EmpId = "006", EmpName = "Abby" });

employeeList.Add(new Employee() { EmpId = "007", EmpName = "Carrie" });

//指定置前排序元素

List<Employee> toSortList = new List<Employee>();

toSortList.Add(new Employee() { EmpId = "003", EmpName = "Jon" });

toSortList.Add(new Employee() { EmpId = "005", EmpName = "Jack" });

toSortList.Add(new Employee() { EmpId = "007", EmpName = "Carrie" });

//自定义 排序委托

employeeList.Sort((Employee x, Employee y) => (toSortList.Count(e => e.EmpId == y.EmpId) - toSortList.Count(e => e.EmpId == x.EmpId)));

}

public class Employee

{

public string EmpId

{

get;

set;

}

public string EmpName

{

get;

set;

}

}

经过排序后将原本list中按001，002,003，排列的元素排序为003,005,007,001,002,004.。。。将指定的003,005,007，排列在List最前