FuncValidationRules.cs

using System;
using System.Linq;

public static class Program 
{
    public static void Main() 
    {
        var movie = new Movie
        {
            Title = "",
            Length = 5,
            Year = 1902
        };
        
        //false
        var result = IsValidMovie(movie);
        
        var movie2 = new Movie
        {
            Title = "Shreyas",
            Length = 61,
            Year = 1923
        };
        
        //true
        var result2 = IsValidMovie(movie2);
    }
    
    /*
        Using Func to validate the Movie
    */
    public static bool IsValidMovie(Movie movie)
    {
        Func<Movie, bool>[] rules = 
        {
            m => string.IsNullOrWhiteSpace(m.Title),
            m => m.Length < 60 || m.Length > 400,
            m => m.Year < 1903
        };
        
        return rules.All(rule => rule(movie) == false);
    }
    
    public class Movie
    {
        public string Title { get; set; }
        public int Length { get; set; }
        public int Year { get; set; }
    }
}

​FuncValidationRules.verify.txt

✔️ Compilation completed.

​​.sharplab.json

{
    "version": 1,
    "target": "Verify",
    "mode": "Debug"
}