C# 基于字符串创建对象

我正在开发一个允许添加、编辑员工等的程序。我陷入了给员工一个Department部门是一个类的困境，我需要根据它的名称创建这个类。有什么帮助吗

代码：

系级

class Department
{
    public Department() { }

    public int DepartmentId { get; set; }
    public string DepartmentName { get; set; }
    public string Location { get; set; }

    public ICollection<Employee> EmployeesAtDepartment { get; set; }
}

收集数据的方法

public Employee EmpDetails(Employee NewEmp)
{
    Console.WriteLine("Enter Employee Name:");
    NewEmp.EmployeeName = Console.ReadLine();
    Console.WriteLine("Enter Employee Surname:");
    NewEmp.EmployeeSurname = Console.ReadLine();
    Console.WriteLine("Enter Employee Address:");
    NewEmp.Address = Console.ReadLine();
    Console.WriteLine("Enter Employee Grade:");
    NewEmp.Grade = Convert.ToInt16(Console.ReadLine());
    Console.WriteLine("Enter Employee Salary:");
    NewEmp.Salary = Convert.ToDouble(Console.ReadLine());
    Console.WriteLine("Enter Department of Employee:");
    NewEmp.DepartmentOfEmployee = Console.ReadLine();
    Console.WriteLine("Enter Employee Username:");
    NewEmp.Username = Console.ReadLine();
    Console.WriteLine("Enter Employee Password:");
    NewEmp.Password = Console.ReadLine();

    return NewEmp;
}

---

您不能直接将字符串转换为类实例。但是，您可以通过以下方法实现类似的效果：

以及您的新代码：

public Employee EmpDetails(Employee NewEmp)
{
    Console.WriteLine("Enter Employee Name:");
    NewEmp.EmployeeName = Console.ReadLine();
    Console.WriteLine("Enter Employee Surname:");
    NewEmp.EmployeeSurname = Console.ReadLine();
    Console.WriteLine("Enter Employee Address:");
    NewEmp.Address = Console.ReadLine();
    Console.WriteLine("Enter Employee Grade:");
    NewEmp.Grade = Convert.ToInt16(Console.ReadLine());
    Console.WriteLine("Enter Employee Salary:");
    NewEmp.Salary = Convert.ToDouble(Console.ReadLine());
    // Edit here
    Console.WriteLine("Enter Department of Employee:");
    NewEmp.DepartmentOfEmployee = DepartmentFactory.CreateDepartment(Console.ReadLine());
    Console.WriteLine("Enter Employee Username:");
    NewEmp.Username = Console.ReadLine();
    Console.WriteLine("Enter Employee Password:");
    NewEmp.Password = Console.ReadLine();

    return NewEmp;
}

---

要保持这里的整洁，只需使用枚举并按如下方式传入文本值：

public class Employee
    {
        public string Name { get; private set; }

        public AvailableClasses Class { get; private set; }

        public Employee(string name, string myClass)
        {
            Name = name;
            AvailableClasses classEnum;
            if (!Enum.TryParse(myClass, true, out classEnum))
                classEnum = AvailableClasses.Other;

            Class = classEnum;
        }
    }

    public enum AvailableClasses
    {
        Maths,
        Science,
        Other
    }

---

如果您向我们展示员工、部门的定义，以及在何处/如何存储部门列表，我们可以在用户键入某些内容时查找这些内容，以及这些内容与部门的关系，这会有所帮助。只需实例化Department类的新实例并填充属性您在某些数据库上有部门列表吗？还是每次添加员工时都要添加一个新部门？

public Employee EmpDetails(Employee NewEmp)
{
    Console.WriteLine("Enter Employee Name:");
    NewEmp.EmployeeName = Console.ReadLine();
    Console.WriteLine("Enter Employee Surname:");
    NewEmp.EmployeeSurname = Console.ReadLine();
    Console.WriteLine("Enter Employee Address:");
    NewEmp.Address = Console.ReadLine();
    Console.WriteLine("Enter Employee Grade:");
    NewEmp.Grade = Convert.ToInt16(Console.ReadLine());
    Console.WriteLine("Enter Employee Salary:");
    NewEmp.Salary = Convert.ToDouble(Console.ReadLine());
    // Edit here
    Console.WriteLine("Enter Department of Employee:");
    NewEmp.DepartmentOfEmployee = DepartmentFactory.CreateDepartment(Console.ReadLine());
    Console.WriteLine("Enter Employee Username:");
    NewEmp.Username = Console.ReadLine();
    Console.WriteLine("Enter Employee Password:");
    NewEmp.Password = Console.ReadLine();

    return NewEmp;
}

public class Employee
    {
        public string Name { get; private set; }

        public AvailableClasses Class { get; private set; }

        public Employee(string name, string myClass)
        {
            Name = name;
            AvailableClasses classEnum;
            if (!Enum.TryParse(myClass, true, out classEnum))
                classEnum = AvailableClasses.Other;

            Class = classEnum;
        }
    }

    public enum AvailableClasses
    {
        Maths,
        Science,
        Other
    }