public bool InsertMenuItemAt(AdminNode menuItemToInsert, AdminNode destinationMenuItem, int position)
{
if (menuItemToInsert == null)
{
throw new ArgumentNullException("menuItemToInsert");
}
// insert the node at the destination node
if (destinationMenuItem == null)
{
MenuItems.Insert(position, menuItemToInsert);
return(true); // success
}
else
{
foreach (var firstLevelMenuItem in MenuItems)
{
if (firstLevelMenuItem.InsertMenuItem(menuItemToInsert, destinationMenuItem, position))
{
return(true); // success
}
}
}
return(false); // failure
}
public bool RemoveMenuItem(AdminNode itemToRemove)
{
if (MenuItems.Contains(itemToRemove)) // todo: avoid this check by having a single TreeNode as a property of the content tree preset.
{
MenuItems.Remove(itemToRemove);
return(true); // success
}
else
{
foreach (var firstLevelMenuItem in MenuItems)
{
if (firstLevelMenuItem.RemoveMenuItem(itemToRemove))
{
return(true); // success
}
}
}
return(false); // failure
}
public AdminNode GetMenuItemById(string id)
{
var tempStack = new Stack <AdminNode>(new AdminNode[] { this });
while (tempStack.Any())
{
// evaluate first node
AdminNode item = tempStack.Pop();
if (item.UniqueId.Equals(id, StringComparison.OrdinalIgnoreCase))
{
return(item);
}
// not that one; continue with the rest.
foreach (var i in item.Items)
{
tempStack.Push((AdminNode)i);
}
}
//not found
return(null);
}
public bool InsertMenuItem(AdminNode nodeToInsert, MenuItem destinationNode, int position)
{
var tempStack = new Stack <AdminNode>(new AdminNode[] { this });
while (tempStack.Any())
{
// evaluate first
MenuItem node = tempStack.Pop();
if (node.Equals(destinationNode))
{
node.Items.Insert(position, nodeToInsert);
return(true); // success
}
// not that one. continue
foreach (var n in node.Items)
{
tempStack.Push((AdminNode)n);
}
}
// failure
return(false);
}
// return boolean so that caller can check for success
public bool RemoveMenuItem(AdminNode nodeToRemove)
{
var tempStack = new Stack <AdminNode>(new AdminNode[] { this });
while (tempStack.Any())
{
// evaluate first
MenuItem item = tempStack.Pop();
if (item.Items.Contains(nodeToRemove))
{
item.Items.Remove(nodeToRemove);
return(true); //success
}
// not that one. continue
foreach (var i in item.Items)
{
tempStack.Push((AdminNode)i);
}
}
// failure
return(false);
}
