Google.Maps.StaticMaps.StaticMapRequest.GetVisibleStr C# (CSharp) Method

        private string GetVisibleStr()
        {
            if(this.Visible.Count == 0) return null;

            System.Text.StringBuilder sb = new System.Text.StringBuilder();
            foreach(Location loc in this.Visible)
            {
                if(sb.Length > 0) sb.Append(Constants.PIPE_URL_ENCODED);
                sb.Append(loc.ToString());
            }
            return sb.ToString();
        }