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ASP.NET DaST to wrestle with MVC and WebForms

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26 Mar 2013CPOL82 min read 23.1K   152   11  
DaST is a new architectural pattern for building highly dynamic Web 2.0 applications. A web page is rendered as a set of randomly nested rectangles where each rectangle is controlled individually and every combination of rectangles can be partially updated via AJAX.
// --------------------------- COPYRIGHT NOTICE ---------------------------------
// ASP.NET DaST - LittleNonsense DEMO
// Copyright (C) 2011 by Roman Gubarenko
// http://www.makeitsoft.com/
// ------------------------------------------------------------------------------
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
//
// ------------------------------------------------------------------------------
// Primary Contact  : rgubarenko@gmail.com
// Project Home     : http://www.makeitsoft.com/
// Help & Support   : http://www.makeitsoft.com/forums/
// ------------------------------------------------------------------------------

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Xml.Linq;
using System.Web.Hosting;
using System.IO;

/// <summary>
/// Summary description for DataLayer
/// </summary>
public static class DataLayer
{
  private static XElement XmlDoc
  {
    get
    {
      var xmlDoc = HttpContext.Current.Session["Data.XmlDocument"] as XElement;
      if (xmlDoc == null)
      {
        string dataPath = HostingEnvironment.MapPath("~/App_Data/Data/LittleNonsense.xml");
        xmlDoc = XElement.Parse(File.ReadAllText(dataPath));
        HttpContext.Current.Session["Data.XmlDocument"] = xmlDoc;
      }
      return xmlDoc;
    }
  }

  public static object[] GetCustomers()
  {
    return (from elem in XmlDoc.Elements("Customer")
            select new
            {
              ID = elem.Attribute("id").Value,
              Name = elem.Attribute("name").Value
            }).ToArray();
  }

  public static object[] GetOrders(string customerID)
  {
    var cust = (from elem in XmlDoc.Descendants("Customer")
                where elem.Attribute("id").Value == customerID
                select elem).Single();

    return (from elem in cust.Elements("Order")
            select new
            {
              ID = elem.Attribute("id").Value,
              Date = elem.Attribute("date").Value
            }).ToArray();
  }

  public static object[] GetOrderItems(string orderID)
  {
    var order = (from elem in XmlDoc.Descendants("Order")
                 where elem.Attribute("id").Value == orderID
                 select elem).Single();

    return (from elem in order.Elements("Item")
            select new
            {
              ID = elem.Attribute("id").Value,
              Name = elem.Attribute("name").Value
            }).ToArray();
  }

  public static object GetCustomer(string customerID)
  {
    return (from elem in XmlDoc.Elements("Customer")
            where elem.Attribute("id").Value == customerID
            select new
            {
              ID = elem.Attribute("id").Value,
              Name = elem.Attribute("name").Value
            }).Single();
  }
  
  public static object GetOrder(string orderID)
  {
    return (from elem in XmlDoc.Descendants("Order")
            where elem.Attribute("id").Value == orderID
            select new
            {
              ID = elem.Attribute("id").Value,
              Date = elem.Attribute("date").Value
            }).Single();
  }

  public static object GetOrderItem(string itemID)
  {
    return (from elem in XmlDoc.Descendants("Item")
            where elem.Attribute("id").Value == itemID
            select new
            {
              ID = elem.Attribute("id").Value,
              Name = elem.Attribute("name").Value
            }).Single();
  }
}

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License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)


Written By
Software Developer (Senior)
Canada Canada
Software Architect with over 15 years in IT field. Started with deep math and C++ Computer Vision software. Currently in .NET and PHP web development. Creator of DaST pattern, open-source frameworks, and plugins. Interested in cutting Edge IT, open-source, Web 2.0, .NET, MVC, C++, Java, jQuery, Mobile tech, and extreme sports.

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