No source avaiable (VS2010)

Did you ever try pausing your code in VS2010? Did you get this very annoying screen that says “no source available” ?

The solution is simple, install this extension

Related Reading:

Head First Java, 2nd Edition

Effective Java (2nd Edition)

Java The Complete Reference, 8th Edition

Jquery Rich Array Documentation

If you want to use the JQuery Rich Array and you were hoping for some documentation, well its inside the .JS file but I am posting it here for reference purposes

/***************************************************************************
 *   Copyright (C) 2007 by Vladimir Kadalashvili                                        *
 *   Vladimir.Kadalashvili@gmail.com                                                   *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 *   This program 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 General Public License for more details.                          *
 *                                                                         *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this program; if not, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
 *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
 ***************************************************************************/

/*
A simple jQuery plugin for varios manipulations with arrays
*/ 

jQuery.richArray = {

    /*
        Checks whether an array contains some value
	@param {Array} array - an array in which we search for a value
	@param {Mixed} value - the value we search for
	@return {boolean} true if the array contains the value, otherwise false
    */

    in: function(array, value) {
    },

    /*
        Produces the duplicate-free version of the array
	@param {Array} array
	@returns {array}  - an array without duplicates
    */
    unique: function(array) {

    },

    /*
        Finds the difference between two arrays.
	@param {Array} array1
	@param {Array} array2
	@return {Array} array of values which are present in the first array, but not in the second
    */

    diff: function(array1, array2) {

    },

    /*
        Finds the intersection of two arrays
	@param {Array} array1
	@param {Array} array2
	@return {Array} - the array of values wich are present in both arrays
    */

    intersect: function(array1, array2) {

    },

    /*
        Applies filter to the array, using callback function
	@param {Array} array - an array which we apply filter to
	@param {Function} fn - the filter function. If it returns the value that may be evaluated as TRUE, the value will be included to the returned array.
	@param {Object} scope - the scope of the callback function. Default is jQuery.richArray
	@returns {Array} - an array of values for which callback function returned true
    */

    filter: function(array, fn, scope) {

    },

    /*
        Applies callback function for each element in the input array, and returns array of values that this function returned
	@param {Array} array - an array which we should apply callback to
	@param {Function} fn - callback function
	@param scope - the scope of the callback function. Default is jQuery.richArray
    */
    map: function(array, fn, scope) {
    },

    /*
        Computes the sum of all array elements.
	@param {Array} array - an array we should compute the sum for
	@param {Mixed} init - the initial value of the sum. Default is 0.
	@returns {Mixed} the sum of all elements of the input array
    */

    sum: function(array, init) {
    },

    /*
        Calculates the production of all elements of the array
	@param array - an array we should compute production for
	@param init - the initial value. Default is 1.
	@returns {Mixed} - the production of all elements of the input array
    */

    product: function(array, init) {
    },

    /*
        Reduces the array. One-elemen arrays are turned into their unique element, others are retured untouched
	Examples:
	jQuery.richArray.reduce([3]) -> 3
	jQuery.richArray.reduce([3, 5]) -> [3, 5]
    */

    reduce: function(array) {
    },

    /*
        Creates new version of array without null/undefined values
	@param {Array} array - input array
	@returns {Array} - an array without null/undefined values
    */

    compact: function(array) {
    },

    /*
       Creates a new version of the array that doesn't contain the specified value
       @patam {Array} array - input array
       @param {Mixed} value - the value that shouldn't be included to the returned array
       @returns {Array} - a new version of the input array without specified value
    */

    without: function(array, value) {
    },

    /*
        If the passed argument is an array, returns it untouched, otherwise returns an empty array.
	For internal use.
    */

    getArray: function(array) {
    },

    /*
        if the passed argument is a function, returns it untouched, otherwise returns an empty function
   */

    getFunction: function(fn) {
        if (!(fn instanceof Function)) fn = new Function();
	return fn;
    }    

};

Homepage: Jquery Rich Array Plugin

Related Reading:

Head First Java, 2nd Edition

Effective Java (2nd Edition)

Java The Complete Reference, 8th Edition

Serialize and Deserialize to JSON from ASP.NET

Its very easy to serialize an object to .NET
Simply create some object, normally a custom class with some attributes.
Normally you have a list of these and you want to serialize to JSON to use it from client side code.

If you do the following

var s = new System.Web.Script.Serialization.JavaScriptSerializer();
string resultJs = s.Serialize(result);

you will end up with a JSON array that you were looking for:

[
  { "Desc" : "Corn 100 ",
    "ItemNo" : "123456",
    "OriginalQty" : 50,
    "Qty" : 50,
    "UnitPrice" : 10.21
  } ,
  { "Desc" : "Ice 100 ",
    "ItemNo" : "323456",
    "OriginalQty" : 50,
    "Qty" : 50,
    "UnitPrice" : 10.50
  } ,
  { "Desc" : "Meat 100 ",
    "ItemNo" : "423456",
    "OriginalQty" : 50,
    "Qty" : 50,
    "UnitPrice" : 10.11
  } 

]

However if you try to deserialize this back into an object by running

var json = new System.Web.Script.Serialization.JavaScriptSerializer();
var result = json.Deserialize<ShoppingCartItem[]>(jsonItemArray);
    

You will get a NULL type Exception.

The solution is to create a simple resolver as follows

    using System;
    using System.Web;
    using System.Web.Compilation;
    using System.Web.Script.Serialization;

    namespace XYZ.Util
    {
        /// <summary>
        /// as __type is missing ,we need to add this
        /// </summary>
        public class ManualResolver : SimpleTypeResolver
        {
            public ManualResolver() { }
            public override Type ResolveType(string id)
            {
                return System.Web.Compilation.BuildManager.GetType(id, false);
            }
        }
    }
    

2) Use it to serialize

    var s = new System.Web.Script.Serialization.JavaScriptSerializer(new XYZ.Util.ManualResolver());
    string resultJs = s.Serialize(result);
    lblJs.Text = string.Format("<script>var resultObj = {0};</script>", resultJs);
    

You will get something like the following this time (note new __type included this time)

[
  {
    "__type":"XYZ.Data.Entities.ShoppingCartItem, XYZ.Data, Version=1.7.1.0, Culture=neutral, PublicKeyToken=null",
    "Desc" : "Corn 100 ",
    "ItemNo" : "123456",
    "OriginalQty" : 50,
    "Qty" : 50,
    "UnitPrice" : 10.21
  } ,
  {
    "__type":"XYZ.Data.Entities.ShoppingCartItem, XYZ.Data, Version=1.7.1.0, Culture=neutral, PublicKeyToken=null",
    "Desc" : "Ice 100 ",
    "ItemNo" : "323456",
    "OriginalQty" : 50,
    "Qty" : 50,
    "UnitPrice" : 10.50
  } ,
  {
    "__type":"XYZ.Data.Entities.ShoppingCartItem, XYZ.Data, Version=1.7.1.0, Culture=neutral, PublicKeyToken=null",
    "Desc" : "Meat 100 ",
    "ItemNo" : "423456",
    "OriginalQty" : 50,
    "Qty" : 50,
    "UnitPrice" : 10.11
  } 

]

3) Use it to deserialize

    System.Web.Script.Serialization.JavaScriptSerializer(new XYZ.Util.ManualResolver());
    var result = json.Deserialize<ShoppingCartItem[]>(jsonItemArray);
    

References: Comment by Manuel Abadia on ASP.NET AJAX Extensions Internals – Web Service Proxy Generation

Related Reading:

Head First Java, 2nd Edition

Effective Java (2nd Edition)

Java The Complete Reference, 8th Edition

Flesk Viewstate Optimizer Documentation

I came across this excellent looking tool Flesk ViewState Optimizer but was not able to find any details or documentation on it.  Apparently the tool used to be commercial but now its free!  I was able to dig up some history on it

Flesk.ViewStateOptimizer is a unique technology that overrides sending ViewState object to your client’s browser! This means that your client’s browser will no longer receive those large hidden field values, which thus reducing downloading time. Instead, Flesk.ViewStateOptimizer saves the page’s Viewstate hidden field to a file, on the server side, speeding up processing time, downloading time and data.

Combining Flesk.ViewStateOptimizer and Flesk.Accelerator,
you can benefit from reducing downloading data and downloading time up to 30 times faster! No other components
do the same or give the same results!

Flesk.Accelerator and Flesk.ViewStateOptimizer are now released with versions
targeted for the .NET Framework v2.0

How it works?

Flesk.ViewStateOptimizer has several viewstate optimization possibilities that can be set through the web.config file.
From viewstate data compression to saving viewstate on server farms, anything can be possible. This means that Flesk.ViewStateOptimizer can persist values using server side Sessions or files saved on shared locaton accessible by a server farm, or by using common viewstate hidden field value on client side, with the ability to compress data.

There are 2 ways to setup Flesk.ViewStateOptimizer on your web application or .Net project:

1. In all your codebehind, instead of inheriting your class with
   System.Web.UI.Page, change the inheritance to Flesk.Accelerator.Page.
   If you use script block codebehind, use the following lines:

   <%@ Page  Language="C#" Inherits="Flesk.Accelerator.Page" %>
   

2. Flesk.ViewStateOptimizer is designed to meet the requirements of customers that are unable to change
   the base class of their pages.
   As such, Flesk.ViewStateOptimizer provides static methods that allows calling the viewstate procedures
   from within any page class.

   If you have access to the source of your base class, just add the following lines to the code:

   protected override void  SavePageStateToPersistenceMedium(object viewStateBag)
   {
      Flesk.Accelerator.Page.SavePageStateToPersistenceMedium(this, viewStateBag);
   }
   
   protected override object LoadPageStateFromPersistenceMedium()
   {
       return Flesk.Accelerator.Page.LoadPageStateFromPersistenceMedium(this);
   }
   

   If you are using precompiled code you’ll have to edit your aspx files. If at all possible, add the following
   

   snippet to your aspx file:

   protected override PageStatePersister PageStatePersister
   {
     get
     {
       return Flesk.Accelerator.Page.GetPageStatePersister(this);
     }
   }