ASP.NET / MVC / MVP Developing / JS / JQuery: 2014

Thursday, November 20, 2014

Simple JQuery Grid Plugin

Grid implemented in js file:

jQuery.fn.Grid = function(options) {
if(options == undefined || options.data == undefined) return;

var html = "";
var realColumnsNames = [];
var headerColumnsNames = [];
var columns = [];
html += '<table id="table">';
html += '<thead id="tableHead">';
html += '<tr id="tableHeadTr">';
if(options.columns == undefined || options.columns.length == 0) {
for (var objName in options.data[0]) {
html += '<th id="' + objName + '">' + objName + '</th>';
realColumnsNames.push(objName);
}
}
else {
for (var i = 0; i < options.columns.length; i++) {
objName = options.columns[i];
html += '<th id="' + objName + '">' + objName + '</th>';
}
for (var objName in options.data[0]) {
realColumnsNames.push(objName);

}
}
html += '</tr>';
html += '</thead>';

$.each(options.data, function (index, value) {
html += "<tr class='tableRow'>";
for (var i = 0; i < realColumnsNames.length; i++) {
html += "<td>" + value[realColumnsNames[i]] + "</td>";
}
html += "</tr>";
})

html += '</table>';

this[0].innerHTML = html;
};

And Usage in HTML:

<body>

<div id="Grid"></div>
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
<script src="js/Grid.js"></script>
<script>
var data = JSON.parse('[{"Name" : "Name", "Surname" : "SName"},' +
'{"Name" : "Name", "Surname" : "SName"}, ' +
'{"Name" : "Name", "Surname" : "SName"},' +
'{"Name" : "Name", "Surname" : "SName"}]');

var options = {
data: data,
columns: ['First Name', 'Second Name']
};

$('#Grid').Grid(options);
</script>
</body>

Wednesday, July 16, 2014

ASP.NET MVC CACHING with TIME STAMP EXAMPLE

CACHE MANAGER:

using System;
using System.Runtime.Caching;
 
namespace Quasar.Bll
{
    public class CacheManager : ICacheProvider
    {
      private ObjectCache Cache { get { return MemoryCache.Default; } }
 
      public object Get(string key)
      {
          return Cache[key];
      }
 

      public void Set(string key, object data, int cacheTime)
      {
       var policy = new CacheItemPolicy {

                     AbsoluteExpiration = DateTime.Now + TimeSpan.FromMinutes(cacheTime)

                                        };
 
       Cache.Add(new CacheItem(key, data), policy);
      }
 
      public bool IsSet(string key)
      {
          return (Cache[key] != null);
      }
 
      public void Invalidate(string key)
      {
          Cache.Remove(key);
      }
 
   }
}

CACHE USAGE in BLL:

using System.Collections;
using System.Collections.Generic;
using System.Linq;
using Quasar.Bll.Models;

namespace Quasar.Bll
{
    public class ProductsBusinessObject
    {
        public List<ProductSearchResult> GetProductData(string searchText)
        {
            var cache = new CacheManager();

            var products = cache.Get(searchText) as List<ProductSearchResult>;

            if (products != null)
            {
                return products;
            }

            var rawData = new Dal.ProductsDao().GetProductsData(searchText);

            var searchedProducts = from prod in rawData
                select
                    new ProductSearchResult
                    {
                       Breadcrumb = prod.Categories,
                       LastUpdated = prod.LastUpdated,
                       Price = float.Parse(prod.Price.ToString()),
                       ProductImage = prod.ProductMainImageUrl,
                       ProductLink = prod.ProductLink,
                       ProductTitle = prod.ProductTitle,                       
                       Provider = prod.SiteNameToCrawle,
                       ProviderLogo = ProvidersLogoManager.GetProviderLogo(prod.SiteNameToCrawle)
                    };

            var result = searchedProducts.ToList();

            cache.Set(searchText, result, 1);

            return result;
        }
    }
}

Tuesday, May 27, 2014

Managing Resources with ASP.NET MVC and Self Hosting

In Self Hosting ASP.NET MVC application we have 2 options to manage resources :

- Files System
- Embedded Resources

Manage resources on File System just like IIS do it.
Get Css example. In order to bring JS or Image, just change contentType:

Controller:

 public class ActiveDirectoryAuthenticationController : ResourcesController
 {        
        public ActionResult Index()
        {         
            return View();
        }    
 }

ResourcesController

public class ResourcesController: Controller
{
    public HttpResponseBase GetResource(string resourceId)
    {
         Response.Clear();
         Response.ContentType = "text/css";
         Response.Write(Resources.ResourceManager.GetObject(resourceId));
         Response.End();
         return Response;
    }        
}

CSHTML:

<a href="@Url.Action("GetResource", "Resources", new { resourceId = some.css})"></a>



Resource File: