using System;

using System.Reflection;

​

public static class PropertyInfoExtensions

{

    /// <summary>

    /// Determines whether the specified property type can be set to null.

    /// </summary>

    /// <param name="property">The property to check.</param>

    /// <returns>True if the property type can be set to null; otherwise, false.</returns>

    public static bool CanBeSetToNull(this PropertyInfo property)

    {

        // Check if the type is a reference type

        if (!property.PropertyType.IsValueType)

        {

            return true;

        }

​

        // Check if the type is a nullable value type (e.g., Nullable<int>)

        if (Nullable.GetUnderlyingType(property.PropertyType) != null)

        {

            return true;

        }

​

        // Otherwise, it's a non-nullable value type

        return false;

    }

}

​

/// <summary>

/// Example class demonstrating different types of properties.

/// </summary>

public class Example

{

    /// <summary>

    /// Gets or sets a nullable reference type.

    /// </summary>

    public string? NullableReferenceType { get; set; }

​

    /// <summary>

    /// Gets or sets a non-nullable reference type.

    /// </summary>

    public string NonNullableReferenceType { get; set; }

​

    /// <summary>

    /// Gets or sets a nullable value type.

    /// </summary>

    public int? NullableValueType { get; set; }

​

    /// <summary>

    /// Gets or sets a non-nullable value type.

    /// </summary>

    public int NonNullableValueType { get; set; }

}

​

class Program

{

    static void Main()

    {

        var properties = typeof(Example).GetProperties();

        foreach (var property in properties)

        {

            Console.WriteLine($"Property: {property.Name}, Can be set to null: {property.CanBeSetToNull()}");

        }

    }

}