private bool AllowMoveToStep(T fromStep, T toStep)
{
WizardStepCollection steps = this.WizardSteps;
int fromStepIndex;
if (fromStep != null)
{
fromStepIndex = steps.IndexOf(fromStep);
}
else
{
fromStepIndex = 0;
}
int toStepIndex = steps.IndexOf(toStep);
if (this.IsForwardNavigation(fromStep, toStep))
{
for (int i = fromStepIndex; i < toStepIndex; i++)
{
if (!steps[i].IsCompleted)
{
return(false);
}
}
return(true);
}
else
{
return(true);
}
}
private bool TryGetPreviousStep(T fromStep, out T previousStep)
{
WizardStepCollection steps = this.WizardSteps;
int index = steps.IndexOf(fromStep);
if (index == 0)
{
previousStep = null;
return(false);
}
else
{
previousStep = (T)steps[--index];
return(true);
}
}