Get last step in component wizard - asp.net

Question

C# Wizard control has the event ActiveStepChanged that is triggered when we move through the steps of the wizard. The current step is stored in the property called ActiveStepIndex. I need to retrieve the step immediately preceding the current ActiveStepIndex.
I'm trying this way but without results up to now:
ICollection s = wizTransferSheet.GetHistory();
IList steps = s as IList;
WizardStep lastStep = steps[steps.Count].Name;

Answer 1

Depending on how complex your wizard is, that can be tricky sometimes. You can't always use the ActiveStepIndex. Luckily, the wizard control logs a history of the steps visited, and you can leverage this to retrieve the last step that was visited:
You can use this function to get the last step that was visited:
/// <summary>
/// Gets the last wizard step visited.
/// </summary>
/// <returns></returns>
private WizardStep GetLastStepVisited()
{
//initialize a wizard step and default it to null
WizardStep previousStep = null;
//get the wizard navigation history and set the previous step to the first item
var wizardHistoryList = (ArrayList)wzServiceOrder.GetHistory();
if (wizardHistoryList.Count > 0)
previousStep = (WizardStep)wizardHistoryList[0];
//return the previous step
return previousStep;
}
Here's some sample code from one of our wizards. The wizard is pretty complex, and there is a lot of potential branching based on what the user does. Because of that branching, navigating the wizard can be a challenge. I don't know if any of this will be useful to you, but I figured it was worthwhile including it just in case.
/// <summary>
/// Navigates the wizard to the appropriate step depending on certain conditions.
/// </summary>
/// <param name="currentStep">The active wizard step.</param>
private void NavigateToNextStep(WizardStepBase currentStep)
{
//get the wizard navigation history and cast the collection as an array list
var wizardHistoryList = (ArrayList)wzServiceOrder.GetHistory();
if (wizardHistoryList.Count > 0)
{
var previousStep = wizardHistoryList[0] as WizardStep;
if (previousStep != null)
{
//determine which direction the wizard is moving so we can navigate to the correct step
var stepForward = wzServiceOrder.WizardSteps.IndexOf(previousStep) < wzServiceOrder.WizardSteps.IndexOf(currentStep);
if (currentStep == wsViewRecentWorkOrders)
{
//if there are no work orders for this site then skip the recent work orders step
if (grdWorkOrders.Items.Count == 0)
wzServiceOrder.MoveTo(stepForward ? wsServiceDetail : wsSiteInformation);
}
else if (currentStep == wsExtensionDates)
{
//if no work order is selected then bypass the extension setup step
if (grdWorkOrders.SelectedItems.Count == 0)
wzServiceOrder.MoveTo(stepForward ? wsServiceDetail : wsViewRecentWorkOrders);
}
else if (currentStep == wsSchedule)
{
//if a work order is selected then bypass the scheduling step
if (grdWorkOrders.SelectedItems.Count > 0)
wzServiceOrder.MoveTo(stepForward ? wsServicePreview : wsServiceDetail);
}
}
}
}