Loop through ICollection properties in C#

Hi telldurges,

Please refer below code example.

Code

IEnumerable<Customer> items = new Customer[]
{
    new Customer{ ID=1, Name="Mudassar khan", Countries =new List<Country>{new Country{ID=1,Name="India"},new Country{ID=2,Name="USA"}}},
    new Customer{ ID=2, Name="Robert", Countries =new List<Country>{new Country{ID=2,Name="Mexico"},new Country{ID=2,Name="Canada"}}},
    new Customer{ ID=3, Name="Rousay", Countries =new List<Country>{new Country{ID=3,Name="Germany"},new Country{ID=2,Name="France"}}},
};

foreach (Customer item in items)
{
    PropertyInfo[] properties = typeof(Customer).GetProperties();
    foreach (PropertyInfo property in properties)
    {
        if (typeof(IEnumerable).IsAssignableFrom(property.PropertyType))
        {
            var itm = property.GetValue(item, null);
            if (itm is ICollection)
            {
                var Count = ((ICollection)itm).Count;
                foreach (Country country in ((ICollection)itm))
                {
                    var Key = typeof(Country).GetProperties().Where(x => x.Name == "ID").FirstOrDefault().GetValue(country, null);
                    var value = typeof(Country).GetProperties().Where(x => x.Name == "Name").FirstOrDefault().GetValue(country, null);
                }
            }
        }
    }
}

public class Customer
{
    public int ID { get; set; }
    public string Name { get; set; }
    public List<Country> Countries { get; set; }
}

public class Country
{
    public int ID { get; set; }
    public string Name { get; set; }
}

If you have any error revert back.