c# - 只对一个对象设置属性

Question

如何制作像 RadioButton 这样的 bool 属性？你知道吗，就像一个 RadioButton，只能选择一个？

像下面的例子。

当我将一个员工 IsResponsiblePerson 设置为 true 时，它​​应该将所有其他员工设置为 false。不使用循环。

var list = new ObservableCollection<Employee>();

public class Employee
{
    public string Name{get;set;}
    public string Surname{get;set;}
    public bool IsResponsiblePerson{get;set;}
}

Answer 1

如果我不想使用循环，我可能会做的是，正如 Lasse V. Karlsen 在评论中所说，将“ResponsiblePerson”的名称存储在另一个属性中:

static string ResponsiblePerson {get;set;}

并将 IsResponsiblePerson 属性更改为如下所示:

public bool IsResponsiblePerson 
{ 
    get 
    { 
        return this.Name == ResponsiblePerson; 
    }
    set 
    {   
        if (value)
        {
             ResponsiblePerson = this.Name;
        }
        else
        {
            if (this.Name == ResponsiblePerson)
            {
                ResponsiblePerson = "";
            }
        }
    }
}

示例代码:

List<Employee> employees = new List<Employee>() { new Employee() { Name = "name1" },
                                                    new Employee() { Name = "name2" },
                                                    new Employee() { Name = "name3" } };

Employee emp1 = employees.Where(x => x.Name == "name1").First();
emp1.IsResponsiblePerson = true;

Employee emp2 = employees.Where(x => x.Name == "name2").First();
emp2.IsResponsiblePerson = true;

foreach (Employee e in employees) 
{ 
     Console.WriteLine(e.IsResponsiblePerson); //false true false
}

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我制作了一个 DotNetFiddle 示例 here