Cast Datagrid.SelectedItems collection to List<T>

Make sure to use the System.Linq namespace then :

You should be able to use :

List<Foo> SelectedItemsList = DataGrid.SelectedItems.Cast<Foo>().ToList();

or if you're not quite sure what DataGrid.SelectedItems contains :

List<Foo> SelectedItemsList = DataGrid.SelectedItems.OfType<Foo>().ToList()

Try this:

DataGrid.SelectedItems.OfType<Foo>().ToList()

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