/// <summary>
/// Moves the wizard back one step.
/// </summary>
public void back()
{
try
{
CancelEventArgs cea = new CancelEventArgs();
if (BackCalled != null)
{
BackCalled(this, cea);
}
if (cea.Cancel)
{
return;
}
WizardStep step = (WizardStep)wizardSteps[wizardStepIndex];
WizardStepIndex--;
//notify the current step that its previous operation should be rolled back.
WizardStep newStep = (WizardStep)wizardSteps[wizardStepIndex];
newStep.UndoNext();
//Note: the step.Back() must occur after decrementing the step
//index just in case the back operation removes substeps.
step.Back();
}
catch (OperationCancelledException)
{
this.WizardControl.Cancel();
}
}
