Пример #1
0
 public TemplateNode(TemplateNode parent, object content)
 {
     Parent   = parent;
     Content  = content;
     Children = new List <TemplateNode>();
     Searched = false;
 }
Пример #2
0
        /* Method Removes Node corresponding to child from the element tree */
        public bool RemoveChild(object child)
        {
            TemplateNode tnp = root;

            //If the parent dne, root nodes parent will be null and loop will exit
            //If the child has already been added, exit the loop
            while (tnp != null)
            {
                if (tnp.Content == child)   //If current node is the child
                {
                    string msg           = "Are you sure you want to delete this item?\n All internal items will also be deleted.";
                    var    confirmResult = MessageBox.Show(msg, "Confirm Delete!!", MessageBoxButtons.YesNo);
                    if (confirmResult == DialogResult.Yes)
                    {
                        tnp.Parent.Children.Remove(tnp);
                        return(true);
                    }
                    else
                    {
                        return(false);
                    }
                }
                else
                {
                    int i = 0; //counter
                               //While not the end of child list and child has been searched, check next child
                    while (i != tnp.Children.Count && tnp.Children[i].Searched == true)
                    {
                        i++;
                    }
                    if (i != tnp.Children.Count)   //Search next child if available
                    {
                        tnp = tnp.Children[i];
                    }
                    else   //else move back to parent node as all children have been checked
                    {
                        tnp.Searched = true;
                        tnp          = tnp.Parent;
                    }
                }
            }
            MessageBox.Show("Error: Element not found in tree");
            return(false);
        }
Пример #3
0
 /*
  * Method creates a node for child, and adds it to the child list of the node corresponding to parent in the tree
  * Method performs depth-first traversal of tree looking for parent
  */
 public bool AddChild(Object child, Object parent)
 {
     // If the first element of the tree has not been added, create root node
     if (root == null)
     {
         root = new TemplateNode(null, child);
         return(true);
     }
     else   // Do a depth-first traversal of the template tree to find the parent node
     {
         TemplateNode tnp = root;
         //If the parent dne, root nodes parent will be null and loop will exit
         //If the child has already been added, exit the loop
         while (tnp != null)
         {
             if (tnp.Content == parent)   //If current node is the parent, add the child node and set successful
             {
                 tnp.AddChild(new TemplateNode(tnp, child));
                 return(true);
             }
             else
             {
                 int i = 0; //counter
                 //While not the end of child list and child has been searched, check next child
                 while (i != tnp.Children.Count && tnp.Children[i].Searched == true)
                 {
                     i++;
                 }
                 if (i != tnp.Children.Count)   //Search next child if available
                 {
                     tnp = tnp.Children[i];
                 }
                 else   //else move back to parent node as all children have been checked
                 {
                     tnp.Searched = true;
                     tnp          = tnp.Parent;
                 }
             }
         }
         MessageBox.Show("Error: Parent element not found in tree.");
         return(false);
     }
 }
Пример #4
0
 public void RemoveChild(TemplateNode child)
 {
     Children.Remove(child);
 }
Пример #5
0
 public void AddChild(TemplateNode child)
 {
     Children.Add(child);
 }