/// <summary>Called when the Back button is clicked. If the event is not canceled, the wizard will navigate to the
/// previous step.
/// </summary>
protected virtual void OnBackButtonClicked(CancelEventArgs e)
{
if(CurrentStepIndex != -1) CurrentStep.OnBackButtonClicked(e);
if(BackButtonClicked != null) BackButtonClicked(this, e);
if(!e.Cancel && CurrentStepIndex != -1)
{
if(DesignMode || CurrentStep.PreviousStep == null) // in design mode, we always want to move through the steps in
{ // order, so it's predictable and the user can access them all
if(CurrentStepIndex > 0) CurrentStepIndex--;
}
else
{
CurrentStepIndex = CurrentStep.PreviousStep.Index;
}
}
}
