Question

Hello i cannot sort alphabetical my datagridview

this is how i fill my grid :

 bs = new BindingSource();
                bs.DataSource = db.GetProducts.ToList();
                dgvInventory.DataSource = bs;

and this is how i try to sort my grid :

     private void toolStripButton3_Click_1(object sender, EventArgs e)
    {
        bs.Sort = "ID DESC, Name ASC";
        dgvInventory.DataSource = bs;
    }

And when i pressing button nothing happens
This two columns is exsist in data grid

and this is screen :

Answer 1

Quoting from: http://msdn.microsoft.com/en-us/library/system.windows.forms.bindingsource.sort.aspx

To support sorting, the underlying list must implement the
IBindingList or IBindingListView interfaces. This capability can be
queried through the SupportsSorting property. Multicolumn sorting is
available when the SupportsAdvancedSorting property is true.

You’re calling the ToList() extension method which is going to return you a List<Product> which is not going to support either of those interfaces and hence won’t be sortable.