private void AddMenuList(HtmlTextWriter writer, List <MenuNode> nodeList)
{
writer.AddAttribute(Constants.DataRole, "listview");
writer.AddAttribute(Constants.DataInset, "true");
writer.RenderBeginTag(HtmlTextWriterTag.Ul);
if (nodeList != null)
{
foreach (MenuNode node in nodeList)
{
writer.RenderBeginTag(HtmlTextWriterTag.Li);
writer.WriteLine();
writer.Indent++;
if (node is MenuLeaf)
{
MenuLeaf leaf = node as MenuLeaf;
AddMenuLeaf(writer, leaf.Title, leaf.Description, leaf.Price);
}
else
{
AddMenuNode(writer, node.Title, "#" + node.Link);
}
writer.Indent--;
writer.RenderEndTag();
writer.WriteLine();
}
}
writer.RenderEndTag();
}
private static void MenuExample()
{
var menu1 = new MenuContainer(new MenuComponent[]
{
new MenuLeaf("1. My profile"),
new MenuComposite("2. Admin", new[]
{
new MenuLeaf("2.1. Admin page")
}),
new MenuComposite("3. Lists", new MenuComponent[]
{
new MenuLeaf("3.1. Admin page"),
new MenuLeaf("3.2. Lecturers"),
new MenuComposite("3.3 Students", new MenuComponent[]
{
new MenuComposite("3.3.1. 1-st year", new[]
{
new MenuLeaf("3.3.1.1. Computer science"),
new MenuLeaf("3.3.1.2. Mathematics"),
new MenuLeaf("3.3.1.3. Admin page")
}),
new MenuLeaf("3.3.2. 2-nd year")
})
})
});
var menu2 = new MenuComposite("1. My second menu", new[]
{
new MenuLeaf("1.1. My profile"),
new MenuLeaf("1.2. My settings"),
});
var menu3 = new MenuContainer(new[] { new MenuLeaf("1. My profile menu") });
var menu4 = new MenuLeaf("1. My forth menu");
var menus = new MenuComponent[] { menu1, menu2, menu3, menu4 };
foreach (var menu in menus)
{
Console.WriteLine(menu.Render());
Console.WriteLine();
Console.WriteLine(@"------");
Console.WriteLine();
}
}
public ActionResult EditItem(MenuLeaf newMenuLeaf, int id, string parent, int idx)
{
if ((id == 0) || !Utilities.IsThisMyMenu(id, db, User))
{
return(RedirectToAction("MenuBuilderAccessViolation", "Menu"));
}
//we need a parent ID in order to know where to edit
if (!string.IsNullOrEmpty(parent))
{
if ((ModelState.IsValid) && (!string.IsNullOrEmpty(newMenuLeaf.Title)))
{
Menu menu = db.Menus.Find(id);
if (menu == null)
{
Utilities.LogAppError("Could not find menu.");
return(HttpNotFound());
}
//deserialize current menu tree
List <MenuNode> currentMenuTree = V1.DeserializeMenuTree(menu.MenuTree);
//check if this is the root level
if (parent == Constants.RootLevel)
{
//update item
currentMenuTree[idx] = newMenuLeaf;
}
else
{
//find the parent node
MenuNode parentNode = V1.FindMenuNode(currentMenuTree, parent);
if (parentNode != null)
{
//update item
parentNode.Branches[idx] = newMenuLeaf;
}
}
//serialize back into the menu
menu.MenuTree = V1.SerializeMenuTree(currentMenuTree);
//mark menu as dirty
menu.ChangesUnpublished = true;
//save menu
db.Entry(menu).State = EntityState.Modified;
db.SaveChanges();
return(RedirectToAction("Details", new { id = id, parent = parent, idx = -1 }));
}
//send it back to the form
ViewBag.Parent = parent;
ViewBag.MenuId = id;
ViewBag.Idx = idx;
return(View(newMenuLeaf));
}
return(HttpNotFound());
}
public ActionResult CreateItem(MenuLeaf newMenuLeaf, int id, string parent)
{
if ((id == 0) || !Utilities.IsThisMyMenu(id, db, User))
{
return(RedirectToAction("MenuBuilderAccessViolation", "Menu"));
}
//we need a parent in order to know where to create these menu nodes
if (!string.IsNullOrEmpty(parent))
{
if ((ModelState.IsValid) && (!string.IsNullOrEmpty(newMenuLeaf.Title)))
{
Menu menu = db.Menus.Find(id);
if (menu == null)
{
Utilities.LogAppError("Could not find menu.");
return(HttpNotFound());
}
//first deserialize current menu tree
List <MenuNode> currentMenuTree = V1.DeserializeMenuTree(menu.MenuTree);
if ((currentMenuTree != null) && (currentMenuTree.Count > 0))
{
//if parent is empty, this is the root level
if (parent == Constants.RootLevel)
{
//add node to the root level
currentMenuTree.Add(newMenuLeaf);
}
else
{
//find the parent node
MenuNode parentNode = V1.FindMenuNode(currentMenuTree, parent);
if (parentNode != null)
{
//add node to the parent's branches
parentNode.Branches.Add(newMenuLeaf);
}
}
//serialize back into the menu
menu.MenuTree = V1.SerializeMenuTree(currentMenuTree);
}
else
{
//no current nodes, so just set serialized data directly into menu
List <MenuNode> newMenuNodes = new List <MenuNode>();
newMenuNodes.Add(newMenuLeaf as MenuNode);
menu.MenuTree = V1.SerializeMenuTree(newMenuNodes);
}
//mark menu as dirty
menu.ChangesUnpublished = true;
//save menu to DB
db.Entry(menu).State = EntityState.Modified;
db.SaveChanges();
return(RedirectToAction("Details", new { id = id, parent = parent, idx = -1 }));
}
//send it back to the form
ViewBag.Parent = parent;
ViewBag.MenuId = id;
return(View(newMenuLeaf));
}
return(HttpNotFound());
}
