How to Casting DataSource to List?

Question

I have the following method that load products on a DataGridView

private void LoadProducts(List products)
{
    Source.DataSource = products;          


        

Answer 1

Convining the answers This is my solution:

private void SaveAll()
{
    Repository repository = Repository.Instance;
    List<Product> products = (List<Product>)Source.DataSource;
    IEnumerable<object> objects = products.Cast<object>();
    repository.SaveAll<Product>(objects.ToList<object>());
    notificacionLbl.Visible = false;
}

I accept constructive criticisms.

Answer 2

You can't cast covariantly directly to List;

Either:

List<Product> products = (List<Product>)Source.DataSource;

or:

List<Object> products = ((List<Product>)Source.DataSource).Cast<object>().ToList();

Answer 3

Your List ist of type List<Product> which is different from List<object>. Try to cast to List<Product>

Answer 4

So how can I cast the DataSource to an List?

You have plenty of options

var products = (List<Product>)Source.DataSource; // products if of type List<Product>

or

 List<Object> products = ((IEnumerable)Source.DataSource).Cast<object>().ToList();

or

List<Object>  products = ((IEnumerable)Source.DataSource).OfType<object>().ToList();

or

List<Object> products = new List<Object>();
((IEnumerable)Source.DataSource).AsEnumerable().ToList().ForEach( x => products.Add( (object)x));