How Do I.... Linq directly into an ItemCollection?

I have this: private void LoadSupportSolutionsSection(ItemCollection itemCollection, XElement category){    // Solution, url att, Title, Description.    var solutions = from sol in category.Elements(“Solution”)      select new TreeViewItem {        Header = sol.Element(“Title”).Value,         Tag = sol.Attribute(“url”).Value,        ToolTip = new ToolTip()         {          Content=sol.Element(“Description”).Value,           StaysOpen=true        }      };     foreach (TreeViewItem item in solutions)    {        itemCollection.Add(item);    }} A very simple…

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