How to create a sorted list of methods with parameters and datatypes and add them to treeview

var query = from m in typeof(AbolWebServiceClient).GetMethods()

            orderby m.Name

            where   m.IsPublic == true &&

                    m.Name.Contains("Async")==false &&

                    m.IsSecurityCritical==true

            select m;

foreach (MethodInfo method in query)

{

    TreeNode tnMethod = treeViewMethods.Nodes.Add(method.Name);

    foreach(var param in method.GetParameters())

    {

        tnMethod.Nodes.Add(String.Format("{0} {1}", param.ParameterType.Name, param.Name));

    }

}