如何使用FluentValidation验证集合中的不同类型？

using FluentValidation;
using System.Collections.Generic;

public class MyObjectValidator : AbstractValidator<MyObject>
{
    public MyObjectValidator()
    {
        RuleForEach(x => x.CollectionProperty)
            .Must(BeValidType)
            .WithMessage("Invalid type in the collection.");
    }

    private bool BeValidType(object item)
    {
        // 根据元素的类型进行条件判断
        if (item is int)
        {
            return ((int)item) > 0;
        }
        else if (item is string)
        {
            return !string.IsNullOrEmpty((string)item);
        }
        else
        {
            return false;
        }
    }
}

public class MyObject
{
    public List<object> CollectionProperty { get; set; }
}

// 在使用时，创建MyObject实例并进行验证
var myObject = new MyObject
{
    CollectionProperty = new List<object> { 1, "abc", null }
};

var validator = new MyObjectValidator();
var result = validator.Validate(myObject);

if (!result.IsValid)
{
    foreach (var error in result.Errors)
    {
        Console.WriteLine(error.ErrorMessage);
    }
}