❔ WPF - Use command of viewmodel instead of item on click

  <Grid x:Name="LayoutRoot" Margin="5">
        <ItemsControl ItemsSource="{Binding Options}" Grid.Row="1">
            <ItemsControl.ItemsPanel>
                <ItemsPanelTemplate>
                    <StackPanel Orientation="Horizontal" HorizontalAlignment="Right" Margin="0,10,0,0" />
                </ItemsPanelTemplate>
            </ItemsControl.ItemsPanel>
            <ItemsControl.ItemTemplate>
                <DataTemplate>
                    <Button Command="{Binding CloseDialogCommand, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType={x:Type vm:NotificationDialogViewModel}}}" CommandParameter="true" Content="{Binding }" MinWidth="75" Height="25" Margin="10,5,10,5" />
                </DataTemplate>
            </ItemsControl.ItemTemplate>
        </ItemsControl>
    </Grid>

  public class NotificationDialogViewModel : BindableBase, IDialogAware
  {
        private DelegateCommand<string> _closeDialogCommand;
        public DelegateCommand<string> CloseDialogCommand =>
            _closeDialogCommand ?? (_closeDialogCommand = new DelegateCommand<string>(CloseDialog));

        protected virtual void CloseDialog(string parameter)
        {
            ButtonResult result = ButtonResult.None;

            if (parameter?.ToLower() == "true")
                result = ButtonResult.OK;
            else if (parameter?.ToLower() == "false")
                result = ButtonResult.Cancel;

            RaiseRequestClose(new DialogResult(result, new DialogParameters($"parameter={parameter}")));
        }

  }