Adding button to busy indicator

[Josh]

Hi I am using the busy indicator while I have a simulator setting it self up. I need to give the user a method to perform an emergency stop if needed. I tried adding a button to the data template but clicking it seems to do nothing. Can this be done? Below is the XMAL and command definition

<telerik:RadBusyIndicator IsIndeterminate="True" IsBusy="{Binding IsVehicleRotating}">
            <telerik:RadBusyIndicator.BusyContentTemplate>
                <DataTemplate>
                    <Grid HorizontalAlignment="Center" VerticalAlignment="Center">
                        <Grid.RowDefinitions>
                            <RowDefinition></RowDefinition>
                            <RowDefinition Height="23"></RowDefinition>
                        </Grid.RowDefinitions>
                        <diControls:DILabel>
                            Vehicle is rotating
                        </diControls:DILabel>
                        <diControls:DIButton Grid.Row="1">
                            Emergency Stop
                        </diControls:DIButton>
                    </Grid>
                </DataTemplate>
            </telerik:RadBusyIndicator.BusyContentTemplate>
<!--Content is here-->
   </telerik:RadBusyIndicator>

private RelayCommand emergencyStopCommand;
        public RelayCommand EmergencyStopCommand
        {
            get
            {
                return emergencyStopCommand ?? (emergencyStopCommand = new RelayCommand(() =>
                    {
                        IsVehicleRotating = false;
                        vehicleStateController.EmergencyStop();
                        Cleanup();
                    }
                ));
            }
        }

.