using System;

using System.Linq.Expressions;

using System.Reflection;

​

var c = new MyClass();

Increment((MyClass x) => x.MyProp1, c);

Increment((MyClass x) => x.MyProp1, c);

Increment((MyClass x) => x.MyProp1, c);

Increment((MyClass x) => x.MyProp2, c);

Console.WriteLine($"MyClass Prop1: {c.MyProp1}");

Console.WriteLine($"MyClass Prop2: {c.MyProp2}");

int Increment<T>(Expression<Func<T, object>> expression, T obj)

{

    var member = expression.Body as MemberExpression ?? (expression.Body as UnaryExpression)?.Operand as MemberExpression;

    if (member?.Member is not PropertyInfo propertyInfo)

    {

        throw new ArgumentException("Action must be a member expression.");

    }

​

    var value = (int)propertyInfo.GetValue(obj);

    propertyInfo.SetValue(obj, value + 1);

    return 1;

}

​

class MyClass

{

    public int MyProp1

    {

        get;

        set;

    }

​

    public int MyProp2

    {

        get;

        set;

    }

}