private void Files_CollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
{
if (e.NewItems != null)
{
foreach (var item in e.NewItems)
{
if (item is FileViewModel fvm)
{
OpenDirectoryCommand.CanExecuteDependsOn(fvm, nameof(fvm.IsSelected));
DeleteCommand.CanExecuteDependsOn(fvm, nameof(fvm.IsSelected));
RenameCommand.CanExecuteDependsOn(fvm, nameof(fvm.IsSelected));
}
}
}
if (e.OldItems != null)
{
foreach (var item in e.OldItems)
{
if (item is FileViewModel fvm)
{
OpenDirectoryCommand.RemoveCanExecuteDependency(fvm, nameof(fvm.IsSelected));
DeleteCommand.RemoveCanExecuteDependency(fvm, nameof(fvm.IsSelected));
RenameCommand.RemoveCanExecuteDependency(fvm, nameof(fvm.IsSelected));
}
}
}
OpenDirectoryCommand.RaiseCanExecuteChanged();
DeleteCommand.RaiseCanExecuteChanged();
RenameCommand.RaiseCanExecuteChanged();
}