public static void Next(TutorialLinkedList tutorialLinkedList, Button BtnPrevious,
Button BtnNext, TextBlock TxtTutorial, DialogHost TutorialDialog)
{
//ENABLE THE PREVIOUS BUTTON
BtnPrevious.IsEnabled = true;
//IF THE LINKEDLIST CONTAINS A NEXT VALUE
if (tutorialLinkedList.Current.Next != null)
{
//UPDATE THE TEXT TO NEXT NODE
TxtTutorial.Text = tutorialLinkedList.Current.Next.Data;
//SET THE Current NODE TO THE NEXT NODE
tutorialLinkedList.Current = tutorialLinkedList.Current.Next;
}
else
{
//CLOSE THE DIALOG SINCE THE TUTORIAL IS FINISHED
TutorialDialog.IsOpen = false;
}
if (tutorialLinkedList.Current.Next == null)
{
//IF THE TUTORIAL IS ON THE LAST NODE, UPDATE THE NEXT BUTTON TEXT
BtnNext.Content = "GOT IT";
}
}
public static void Previous(TutorialLinkedList tutorialLinkedList, Button BtnPrevious,
Button BtnNext, TextBlock TxtTutorial)
{
//IF THE LINKED LIST CONTAINS A PREVIOUS VALUE
if (tutorialLinkedList.Current.Previous != null)
{
//UPDATE THE TEXT TO THE PREVIOUS NODE
TxtTutorial.Text = tutorialLinkedList.Current.Previous.Data;
//SET THE Current NODE TO THE PREVIOUS NODE
tutorialLinkedList.Current = tutorialLinkedList.Current.Previous;
}
//UPDATE THE TEXT ON THE NEXT BUTTON
BtnNext.Content = "NEXT";
if (tutorialLinkedList.Current.Previous == null)
{
//DISABLE THE PREVIOUS BUTTON IF THERE ARE NO PREVIOUS NODES
BtnPrevious.IsEnabled = false;
}
}