CanBeSetToNull | C# Online Compiler

CanBeSetToNull by hallone

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()}");
        }
    }
}

​x
 
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()}");
        }
    }
}

Compilation error (line 1, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 1, col 0): Syntax error.
Compilation error (line 2, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 2, col 0): Syntax error.
Compilation error (line 3, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 3, col 0): Syntax error.
Compilation error (line 4, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 4, col 0): Syntax error.
Compilation error (line 5, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 5, col 0): Syntax error.
Compilation error (line 6, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 6, col 0): Syntax error.
Compilation error (line 7, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 7, col 0): Syntax error.
Compilation error (line 8, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 8, col 0): Syntax error.
Compilation error (line 9, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 9, col 0): Syntax error.
Compilation error (line 10, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 10, col 0): Syntax error.
Compilation error (line 11, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 11, col 0): Syntax error.
Compilation error (line 12, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 12, col 0): Syntax error.
Compilation error (line 13, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 13, col 0): Syntax error.
Compilation error (line 14, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 14, col 0): Syntax error.
Compilation error (line 15, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 15, col 0): Syntax error.
Compilation error (line 16, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 16, col 0): Syntax error.
Compilation error (line 17, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 17, col 0): Syntax error.
Compilation error (line 18, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 18, col 0): Syntax error.
Compilation error (line 19, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 19, col 0): Syntax error.
Compilation error (line 20, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 20, col 0): Syntax error.
Compilation error (line 21, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 21, col 0): Syntax error.
Compilation error (line 22, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 22, col 0): Syntax error.
Compilation error (line 23, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 23, col 0): Syntax error.
Compilation error (line 24, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 24, col 0): Syntax error.
Compilation error (line 25, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 25, col 0): Syntax error.
Compilation error (line 26, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 26, col 0): Syntax error.
Compilation error (line 27, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 27, col 0): Syntax error.
Compilation error (line 28, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 28, col 0): Syntax error.
Compilation error (line 29, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 29, col 0): Syntax error.
Compilation error (line 30, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 30, col 0): Syntax error.
Compilation error (line 31, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 31, col 0): Syntax error.
Compilation error (line 32, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 32, col 0): Syntax error.
Compilation error (line 33, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 33, col 0): Syntax error.
Compilation error (line 34, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 34, col 0): Syntax error.
Compilation error (line 35, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 35, col 0): Syntax error.
Compilation error (line 36, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 36, col 0): Syntax error.
Compilation error (line 37, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 37, col 0): Syntax error.
Compilation error (line 38, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 38, col 0): Syntax error.
Compilation error (line 39, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 39, col 0): Syntax error.
Compilation error (line 40, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 40, col 0): Syntax error.
Compilation error (line 41, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 41, col 0): Syntax error.
Compilation error (line 42, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 42, col 0): Syntax error.
Compilation error (line 43, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 43, col 0): Syntax error.
Compilation error (line 44, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 44, col 0): Syntax error.
Compilation error (line 45, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 45, col 0): Syntax error.
Compilation error (line 46, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 46, col 0): Syntax error.
Compilation error (line 47, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 47, col 0): Syntax error.

Last Run:	5:19:30 am
Compile:	0s
Execute:	0.172s
Memory:	0b
CPU:	0s

View IL Code