Zetbox.Client.Presentables.ZetboxBase.InstanceListViewModel.UpdateCommands C# (CSharp) Method

        private void UpdateCommands()
        {
            if (commandsStore == null) return;

            // Recreate list, but preserce content
            // This is needed, as the Toolbar will not re-apply a DataTemplate
            // http://stackoverflow.com/questions/16019855/how-can-i-solve-a-toolbar-bug-with-datatemplates
            commandsStore = new ObservableCollection<ICommandViewModel>(commandsStore);

            var showOpenCommand = AllowOpen && (OpenCommand == DefaultCommand);
            var showDefaultCommand = OpenCommand != DefaultCommand;

            if (commandsStore.Contains(NewCommand)) commandsStore.Remove(NewCommand);
            if (commandsStore.Contains(OpenCommand)) commandsStore.Remove(OpenCommand);
            if (commandsStore.Contains(_defaultCommand)) commandsStore.Remove(DefaultCommand);
            if (commandsStore.Contains(RefreshCommand)) commandsStore.Remove(RefreshCommand);
            if (commandsStore.Contains(DeleteCommand)) commandsStore.Remove(DeleteCommand);
            if (commandsStore.Contains(ExportContainerCommand)) commandsStore.Remove(ExportContainerCommand);
            if (commandsStore.Contains(MergeCommand)) commandsStore.Remove(MergeCommand);

            var index = 0;
            if (AllowAddNew) commandsStore.Insert(index++, NewCommand);
            if (showOpenCommand) commandsStore.Insert(index++, OpenCommand);
            if (showDefaultCommand) commandsStore.Insert(index++, DefaultCommand);
            commandsStore.Insert(index++, RefreshCommand);
            if (AllowDelete) commandsStore.Insert(index++, DeleteCommand);
            if (AllowExport) commandsStore.Insert(index++, ExportContainerCommand);
            if (AllowMerge) commandsStore.Insert(index++, MergeCommand);

            OnPropertyChanged("Commands");
        }