WPF 如何对ObservableColletion集合排序，列举两种方式。

示例类：

public class Person  
{  
    public string Name { get; set; }  
    public int Age { get; set; }  
    public bool IsWoman { get; set; }  
}

1、转换成List列表，使用lambada，排序后再重新添加到ObservableColletion集合

ObservableCollection<Person> peoples = new ObservableCollection<Person>  
{  
    new Person { Name = "Alice", IsWomen = true },  
    new Person { Name = "Bob", IsWomen = false },  
    new Person { Name = "Charlie", IsWomen = false },  
    new Person { Name = "Diana", IsWomen = true }  
};  
//以名称排序
var List<People> peopleList = peoples.ToList();
peopleList.Sort((x,y) => x.Name.CompareTo(y.Name));
peoples.Clear();
foreach (var people in peopleList)
{
	peoples.Add(people);
}

2、使用Comparer类，并使用扩展方法

编写排序扩展方法：

/// <summary>
/// 排序
/// </summary>
/// <typeparam name="T">排序的兑现</typeparam>
/// <param name="list">列表集合</param>
/// <param name="c">对比的对象</param>
public static void Sort<T>(this IList<T> list, Comparer<T> c)
{
    if (list == null || list.Count == 0)
    {
        return;
    }
    for (int n = 0; n < list.Count - 1; n++)
    {
        for (int k = 0; k < list.Count - n - 1; k++)
        {
            if (c.Compare(list[k], list[k + 1]) > 0)
            {
                T tmp = list[k];
                list[k] = list[k + 1];
                list[k + 1] = tmp;
            }
        }
    }
}

编写Compare类

public class PersonComparer : Comparer<Person>  
{  
    public override int Compare(Person x, Person y)  
    {  
        if (x == null || y == null)  
            throw new ArgumentNullException();  
            
        return x.Name.CompareTo(y.Name);  
    }  
}

使用：

ObservableCollection<Person> people = new ObservableCollection<Person>  
{  
    new Person { Name = "Alice", IsWomen = true },  
    new Person { Name = "Bob", IsWomen = false },  
    new Person { Name = "Charlie", IsWomen = false },  
    new Person { Name = "Diana", IsWomen = true }  
};  
 
people.Sort(new PersonComparer());  

foreach (var person in people)  
{  
    Console.WriteLine($"{person.Name}, IsWomen: {person.IsWomen}");  
}

若需要男性或女性先排前面，则加多一个判断：

public class PersonComparer : Comparer<Person>  
{  
    public override int Compare(Person x, Person y)  
    {  
        if (x == null || y == null)  
            throw new ArgumentNullException();  
  
        // 首先比较 IsWomen 属性  
        if (x.IsWomen != y.IsWomen)  
        {  
            // 如果 x 是女性而 y 不是，或者 x 不是女性而 y 是，则 x 应该排在 y 前面（或反之，取决于您的排序需求）  
            // 这里我们假设您想让 IsWomen 为 true 的排在前面  
            return x.IsWomen.CompareTo(y.IsWomen);  
        }  
  
        // 如果 IsWomen 相同，则比较 Name 属性  
        return x.Name.CompareTo(y.Name);  
    }  
}