Web apps

MSDL, Microsoft Security Development Lifecycle

2012-01-22T05:13:00.000-08:00

http://blogs.msdn.com/b/sdl/

By following a few simple guidelines, you can help to ensure that your application’s users’ credentials remain secure, even if your database is compromised:

Always store and compare hashes of passwords, never the plaintext passwords themselves.
Apply a random, unique salt value to each password before hashing.
Use a cryptographically strong hash algorithm such as one from the SHA-2 family.
Allow for potential future algorithm changes by implementing a cryptographically agile design.
Hash on the server tier and be sure to transmit all passwords and credential tokens over HTTPS.

Mocking Frameworks and NUnit

2010-12-22T05:59:00.001-08:00

A Mocking framework like Rhino allows you to mock the behaviour of objects and interfaces
For example we may have a class called Duck which implements interface ITalk
and this may have a method quack

Class Library below is LibWithMultipleClasses.dll which has the class to be tested
*************************************************************************************
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace LibWithMultipleClasses
{
public interface ITalk
{
void quack();
}

public class Duck
{
ITalk s;

public int Method1(ITalk s)
{
s.quack();
return 1;
}
}
}

Class Library below is NUnitTests.dll which will be input as a dll into NUnit GUI
*************************************************************************************
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using NUnit.Framework;
using LibWithMultipleClasses;
using Rhino.Mocks;

namespace NUnitTests
{
[TestFixture]
public class MyTestClass
{
Duck f;
MockRepository m;
ITalk q;

[SetUp]
public void Initialize()
{
m = new MockRepository();
f = new Duck();
q = (ITalk)m.CreateMock(typeof(ITalk));
}

[Test]
public void CallMethod1_inDuck1()
{
Expect.Call(q.quack);
m.ReplayAll();
Assert.AreEqual(f.Method1(q), 1);
m.VerifyAll();
}

[Test]
public void CallMethod1_inDuck2()
{

Assert.AreEqual(f.Method1(q), 1);
}

[TearDown]
public void End()
{ }
}
}

Great Way to use Enums(by casting)

2010-12-18T21:40:00.001-08:00

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace ConsoleApplication1
{
public enum Fruit
{
apple = 0,
watermelon = 1,
banana = 3
}

class Program
{
static void Main(string[] args)
{
foreach(Fruit f in Enum.GetValues(typeof(Fruit)))
{
Console.WriteLine((int)f);
}

Console.WriteLine((int)Fruit.apple);
}
}
}

Sheet for WinDbg/SOS

2009-12-27T11:09:00.000-08:00

Nice sheet from the following blog for WinDbg/SOS
http://geekswithblogs.net/.NETonMyMind/archive/2006/03/14/72262.aspx

Starting, Attaching, Executing and Exiting

Start -> All Programs -> Debugging Tools for Windows -> WinDbg

F6
attach to process

Ctrl-Break
interrupt debugee

.detach
detach from a process

g
continue debugee execution

q
exit WinDbg

Getting Help

?
help on commands that affect the debugee

.help
help on commands that affect the debugger

.hh command
view the on line help file

!help
help on the extension dll at the top of the chain (e. g., SOS)

Issuing Commands

up arrow, down arrow, enter
scroll through command history

Right mouse button
paste into command window

Examining the Unmanaged Environment

lmf
list loaded modules with full path

lmt
list loaded modules with last modified timestamp

~
list unmanaged threads

~thread s
select a thread for thread specific commands

!token -n
view thread permissions

k
view the unmanaged call stack

!runaway
view thread CPU consumption

bp
set a breakpoint

.dump path
dump small memory image

.dump /ma path
dump complete memory image

Working with Extension DLLs (e. g., SOS)

.chain
list extensions dlls

.load clr10\sos
load SOS for debugging framework 1.0 / 1.1

.unload clr10\sos
unload SOS

.loadby sos mscorwks
load SOS for debugging framework 2.0

SOS Commands

!threads
view managed threads

!clrstack
view the managed call stack

!dumpstack
view combined unmanaged & managed call stack

!clrstack -p
view function call arguments

!clrstack –l
view stack (local) variables

!name2ee module class
view addresses associated with a class or method

!dumpmt –md address
view the method table & methods for a class

!dumpmd address
view detailed information about a method

!do address
view information about an object

!dumpheap –stat
view memory consumption by type

!dumpheap –min size
view memory consumption by object when at least size

!dumpheap –type type
view memory consumption for all objects of type type

!gcroot address
view which object are holding a reference to address

!syncblk
view information about managed locks

SOS 2.0 Commands

!bpmd module method
set breakpoint

!DumpArray address
view contents of an array

!PrintException
view information about most recent exception

Art of Living News from around the Globe

2009-04-19T10:15:00.000-07:00

The News is being fed from a temporary feed as of now.
This feed will soon be sourced from http://www.artofliving.org/

Some of the Art of Living Centres from around the Globe

2009-04-13T09:18:00.000-07:00

Google SEO

2008-06-08T02:15:00.000-07:00

Google Webmasters
Google Webmasters Guidelines

Converting Blender Models to OpenGL Code

2008-06-07T03:23:00.000-07:00

Make your model in blender.
Add a new material to the object you have made
Press Ctrl+F2 and export to VRML 1.0 format.
Download VRML2OGL from net
use VRML2OGL mymodel.wrl to get the opengl source for
the model.

Note:You have to add a new material to the model you make in Blender
so that you get Material saved as Material_001 keyword in your .wrl file.
If you don't add a new material then the Material is saved of type Material
and "Material" is already a keyword in VRML do the source may not get generated

ProgrammableWeb Mashup Matrix

2008-05-15T07:57:00.000-07:00

ProgrammableWeb Mashup Matrix: "The ProgrammableWeb Mashup Matrix (beta) lets you visualize the web mashup ecosystem."

Google Maps Mania: Indian Google Maps Mashup Roundup!

2008-05-15T07:10:00.000-07:00

Google Maps Mania: Indian Google Maps Mashup Roundup!: "Indian Google Maps Mashup"

HTML Screen Scraping in C#

2008-05-14T02:13:00.000-07:00

HTML Screen Scraping in C#: "HTML Screen Scraping using C# .Net WebClient"

Services - Google Maps API - Google Code

2008-05-14T01:56:00.003-07:00

Services - Google Maps API - Google Code: "Geocoding is the process of converting addresses (like '1600 Amphitheatre Parkway, Mountain View, CA') into geographic coordinates (like latitude 37.423021 and longitude -122.083739), which you can use to place markers or position the map. The Google Maps API includes a Geocoding service that can be accessed directly via an HTTP request or by using a GClientGeocoder object."

Services - Google Maps API - Google Code

2008-05-14T01:56:00.002-07:00

Services - Google Maps API - Google Code

2008-05-14T01:56:00.001-07:00

Services - Google Maps API - Google Code

2008-05-14T01:56:00.000-07:00

Orchestr8 - Platform Overview

2008-05-13T08:51:00.000-07:00

Orchestr8 - Platform Overview: "AlchemyPoint is the ideal platform for developing Internet/Intranet mashups, providing a unique combination of mashup and SOA technology. Only the AlchemyPoint platform offers an integrated application server, data scraping/transformation capability, and web services stack."

Piggy Bank - SIMILE

2008-05-13T08:41:00.000-07:00

Piggy Bank - SIMILE: "Piggy Bank is a Firefox extension that turns your browser into a mashup platform, by allowing you to extract data from different web sites and mix them together."

HTML Screen Scraping: A How-To Document

2008-05-13T08:39:00.000-07:00

HTML Screen Scraping: A How-To Document: "HTML Screen Scraping: A How-To Document"

Orchestr8 Blog » New Release - Create an API, RSS Feed, XML/JSON/etc Output from any Website

2008-05-13T08:35:00.000-07:00

Orchestr8 Blog » New Release - Create an API, RSS Feed, XML/JSON/etc Output from any Website: "Using this new service, Internet users can visually grab content from any website, turning that content into a programmable web API! Extract information from your favorite website, and expose it as XML, CSV, HTML, JSON, RSS, and more. Our system supports automatic API key provisioning and other fun features, as well as a variety of content extraction modes:"

Orchestr8 - Home

2008-05-13T08:34:00.000-07:00

Orchestr8 - Home

Google Code Search

2008-05-12T01:34:00.000-07:00

Google Code Search

Canvas tutorial - MDC

2008-05-11T03:10:00.000-07:00

Canvas : " is a new HTML element which can be used to draw graphics using scripting (usually JavaScript)."

Pipes: Rewire the web

2008-05-11T03:01:00.000-07:00

Yahoo Pipes: Rewire the web

Yahoo! Local. Find businesses and services near you.

2008-05-11T02:59:00.000-07:00

Yahoo! Local. Find businesses and services near you.

Widgetbox › World's largest widget directory and gallery - web widgets for Facebook apps, Blogger, TypePad, MySpace, Wordpress and more

2008-05-11T02:45:00.000-07:00

Widgetbox › World's largest widget directory and gallery - web widgets for Facebook apps, Blogger, TypePad, MySpace, Wordpress and more

Gbase - Home

2008-05-11T02:37:00.000-07:00

Gbase - Home
Musicians Gear Source

Last.fm – The Social Music Revolution

2008-05-11T02:36:00.001-07:00

Last.fm – The Social Music Revolution

craigslist classifieds: jobs, housing, personals, for sale, services, community, events, forums

2008-05-11T02:36:00.000-07:00

craigslist classifieds: jobs, housing, personals, for sale, services, community, events, forums

Javascript Dataflow Architecture_(beta): Software Ecosystem for Web Mash Ups | MAYA Foundry

2008-05-11T02:10:00.000-07:00

Javascript Dataflow Architecture_(beta): Software Ecosystem for Web Mash Ups : "Javascript Dataflow Architecturebeta: Software Ecosystem for Web Mash Ups"

COLOURlovers :: Color Trends + Palettes

2008-05-10T08:12:00.000-07:00

COLOURlovers :: Color Trends + Palettes: "COLOURlovers™ is a resource that monitors and influences color
trends. COLOURlovers gives the people who use color - whether for
ad campaigns, product design, or in architectural specification -
a place to check out a world of color, compare color palettes, submit
news and comments, and read color related articles and interviews"

Developer's Guide: Data API Protocol - YouTube APIs and Tools - Google Code

2008-05-10T08:07:00.000-07:00

Developer's Guide: Data API Protocol - YouTube APIs and Tools - Google Code: "Standard feeds contain lists of videos that either reflect YouTube user behavior, such as top-rated and most viewed video feeds, or were selected by YouTube staff, such as recently featured and mobile video feeds. Many of these feeds are shown on the Videos tab of the YouTube website. Standard feeds are updated every few minutes."

Getting Started : Learn more about openkapow robots

2008-05-10T03:34:00.000-07:00

Openkapow robots: "Openkapow.com is an open service platform, this means that you can build your own services (called robots) and run them from openkapow.com, all for free. These robots accesses web sites and allows you to use data, functionality and even the user interface of other web sites in a whole new way. No longer are you limited by what public APIs or RSS feeds that are available, instead you can build your own in minutes. You can then use those services from within your own mashups, code, Yahoo! Pipes, Google Gadgets etc"

AddThis - Help

2008-05-10T03:06:00.000-07:00

AddThis - Help: "The AddThis button spreads your content across the Web by making it easier for your visitors to bookmark and share it with other people, again…and again…and again."

Easy Counter: Count web pages hits using only HTML

2008-05-10T03:00:00.000-07:00

Easy Counter: Count web pages hits using only HTML: "Easy Counter
Ever wonder how many people visit your website? Where they're from? What operating system they use? Put one of these free hit counters on your site and you'll have all this information at your fingertips."

C++ Standard Template Library

2008-05-09T02:00:00.000-07:00

C++ Standard Template Library: "C++ Standard Template Library
The C++ STL (Standard Template Library) is a generic collection of class templates and algorithms that allow programmers to easily implement standard data structures like queues, lists, and stacks."

16 Awesome Data Visualization Tools

2008-05-05T09:13:00.000-07:00

16 Awesome Data Visualization Tools: "16 Awesome Data Visualization Tools"

Javascript Tutorial - innerHTML

2008-04-28T23:07:00.000-07:00

Javascript Tutorial - innerHTML: "Each HTML element has an innerHTML property that defines both the HTML code and the text that occurs between that element's opening and closing tag. By changing an element's innerHTML after some user interaction, you can make much more interactive pages.
However, using innerHTML requires some preparation if you want to be able to use it easily and reliably. First you must give the element you wish to change an id. With that id in place you will be able to use the getElementById function which works on all browsers."

HTTrack Website Copier - Offline Browser

2008-04-27T02:30:00.000-07:00

HTTrack Website Copier - Offline Browser: "HTTrack is a free (GPL, libre/free software) and easy-to-use offline browser utility.
It allows you to download a World Wide Web site from the Internet to a local directory, building recursively all directories, getting HTML, images, and other files from the server to your computer."

Netvibes Universal Widget API documentation

2008-04-24T03:24:00.000-07:00

Netvibes UWA documentation: "Netvibes UWA documentation
The Universal Widget API offers a powerful framework for Web widgets development - not only for Netvibes widgets, but also for many other environments. With the UWA, you only need one API to build widgets for a host of platforms."

How to write a FaceBook Application in 10 minutes

2008-04-24T02:44:00.000-07:00

How to write a FaceBook Application in 10 minutes: "How to write a FaceBook Application in 10 minutes "

MySpace Developer Platform Reference Documentation and Information

2008-04-23T07:48:00.000-07:00

MySpace Developer Platform Reference Documentation and Information

Google Gadgets Specification

2008-04-23T03:46:00.000-07:00

Google Gadgets Specification

Google Gadgets Directory

2008-04-23T02:32:00.000-07:00

Google Gadgets Directory

The Developer Gadget and Google Gadget Editor

2008-04-23T02:22:00.000-07:00

This Gadget allows you to see other Gadgets source.Add your gadgets to iGoogle and they will appear as links inside your developer gadget so that you can see the XML source.
Developer Gadget, My Gadgets
Google Gadget Editor also allows you to see Gadget source
Google Gadget Editor

Development Fundamentals - Google Gadgets - Google Code

2008-04-22T22:10:00.000-07:00

Development Fundamentals - Google Gadgets - Google Code: "The following example is a gadget implementation of ROT13. ROT13 encrypts text by replacing each letter with the letter 13 positions to the the right in the alphabet. Then when you reapply ROT13, it rotates each letter again, which restores the original text."

Universal Widget API - EduTech Wiki

2008-04-22T09:46:00.001-07:00

Universal Widget API - EduTech Wiki: "Universal Widget API"

Widgets 1.0: Requirements

2008-04-22T09:46:00.000-07:00

Widgets 1.0: Requirements: "Widgets 1.0: Requirements"

Web widget and mashup - EduTech Wiki

2008-04-22T09:45:00.000-07:00

Web widget and mashup - EduTech Wiki: "Web widget and mashup"

SpringWidgets : Widget Developer Toolkit - Build Gadgets, RSS Readers, & Countdown Applications

2008-04-22T09:12:00.000-07:00

SpringWidgets : Widget Developer Toolkit - Build Gadgets, RSS Readers, & Countdown Applications: "Get Started Building Widgets
SpringWidgets

Cascading Style Sheets, Level 2

2008-04-22T02:51:00.000-07:00

Cascading Style Sheets, Level 2: "Cascading Style Sheets, level 2
CSS2 Specification"

Microsoft and Facebook Launch a Partnership

2008-04-22T02:42:00.000-07:00

Visual Studio Express Showcase: "Microsoft and Facebook Launch a Partnership"

Microsoft Popfly Alpha Adds Facebook Platform Support

2008-04-22T02:37:00.000-07:00

Visual Studio Express Showcase: "Microsoft Popfly Alpha Adds Facebook Platform Support
Popfly is the fun, easy way for anyone to build and share mashups, gadgets, Web pages, and applications, now includes built-in support for Facebook, the popular social networking site. The Popfly Facebook block provides easy access to Facebook data like the user profile, friends, photos, photo albums and events, all without writing a line of code."

FQL-Facebook Developers | Documentation

2008-04-22T01:57:00.000-07:00

Facebook Developers | Documentation: "FQL is a way to query the same Facebook data you can access through the other API functions, but with a SQL-style interface. In fact, many of the normal API calls are simple wrappers for FQL queries. All of the usual privacy checks are still applied. A typical query looks something like this: SELECT name, pic FROM user WHERE uid=211031 OR uid=4801660
So, with all that said, why would you use FQL? The key advantages of using FQL over our more traditional API methods are as follows: Condensed XML reduces bandwidth and parsing costs. Instead of getting all of the information available about a large set of items, you can get just the fields you want for only the set of items matching a specific condition. You can request the specific set of information by adding constraints to the WHERE clause and only listing certain fields in the SELECT clause"

Facebook Developers | Tools

2008-04-22T01:47:00.000-07:00

Facebook Developers | Tools: "API Test Console
You can experiment with functions and responses, and see what content Facebook Platform makes available. Select the method you wish want to call and the format of the return values"

HTML Reference

2008-04-22T01:35:00.000-07:00

HTML Reference: "HTML Reference Guide"

FBML - Facebook Developers Wiki

2008-04-22T01:29:00.000-07:00

FBML - Facebook Developers Wiki: "Facebook Markup Language (FBML) enables you to build full Facebook Platform applications that deeply integrate into a user's Facebook experience. You can hook into several Facebook integration points, including the profile, profile actions, Facebook canvas, News Feed and Mini-Feed.
FBML is an evolved subset of HTML with some elements removed, and others which have been added that are specific to Facebook. You set the FBML for a profile box by calling profile.setFBML through the API. The FBML is cached on Facebook's server until profile.setFBML is called again through a canvas page. For a high-level technical spec for FBML, please see FBMLspec"

Snipperoo Universal Widget Directory

2008-04-21T02:07:00.000-07:00

Snipperoo Universal Widget Directory :

MVP-Submitted: The Power of Custom Workflow Activities (Part 2)

2008-04-20T01:56:00.000-07:00

MVP-Submitted: The Power of Custom Workflow Activities (Part 2): "You might have noticed that you are required to add a workflow persistence service when you use either the TransactionScopeActivity or the CompensatableTransactionScopeActivity in a workflow. Both these activities ensure that all contained work is executed inside of a TransactionScope. The reason for this persistence requirement is that both are decorated with the PersistOnClose attribute which ensures the workflow runtime will save the workflow state as soon as the activity is done. The reasoning behind this is that no matter what happens the workflow will never restart before the transactional activity and redo the complete transaction."

CodeProject: Mole For Visual Studio - With Editing - Visualize All Project Types.

2008-04-20T01:49:00.000-07:00

CodeProject: Mole For Visual Studio - With Editing - Visualize All Project Types. Free source code and programming help: New Silverlight Movies For Mole. Mole v4.2 has GREAT new features! Visualizer with property editing. Mole is a high performance, full featured, multifunction visualizer that allows detailed inspection of WPF, WCF, WF, ASP.NET, XBAP's and WinForm applications. Editing of properties is now support"

MVP-Submitted: The Power of Custom Workflow Activities (Part 1)

2008-04-20T01:35:00.000-07:00

The Workflow Runtime: "Normally developers are used to creating an object and calling some kind of function on this object, all very straightforward with the developer in control. When developing for Workflow Foundation this is no longer the case as the workflow runtime needs to stay in control. This means you as a developer have to relinquish that control. We don´t create a workflow instance and execute an activity. In this case we ask the workflow runtime to create the workflow instance for us, and what we get back is not an instance of the workflow we specified but a wrapper object of type WorkflowInstance that contains, in a hidden way, the workflow definition. Next we don´t execute the first activity in the workflow but we ask the workflow runtime to schedule this execution. We don´t get any guarantees when it will actually start executing either, it could be the next millisecond or it could be next week, it all depends on the workflow runtime or more accurately on the WorkflowSchedulerService and the current schedule. Only when we adhere to these principals will we create workflow activities that can be dehydrated and rehydrated, as workflow persistence is called, whenever the workflow runtime wants to do so."

MVP-Submitted: The Power of Custom Workflow Activities (Part 1)

2008-04-20T01:11:00.000-07:00

MVP-Submitted: The Power of Custom Workflow Activities (Part 1): "When dependency properties are used instead of regular properties all storage is taken care of for us and the likelihood of a de-serialization problem is greatly decreased. To give the developer even more control over the serialization format there is actually an option, using the DependencyPropertyOptions enum, to completely skip some data during serialization."

Paul Andrew : Ten Reasons why WF is not a Toy

2008-04-18T08:30:00.000-07:00

Paul Andrew : Ten Reasons why WF is not a Toy: "10 reasons why WF isn't a toy
Six Microsoft products are building on it. They would not choose a toy technology. These products include Microsoft Office SharePoint Server 2007, Microsoft BizTalk Server 'vnext', Microsoft Speech Server 2007, Microsoft System Center 'Service Desk', Microsoft Identity Integration Server 'future version', and Microsoft Dynamics 'future version'."

Lutz Roeder's Programming.NET C# VB CLR

2008-04-18T07:55:00.000-07:00

Lutz Roeder's Programming.NET C# VB CLR: "Reflector for .NET
Reflector is the class browser, explorer, analyzer and documentation viewer for .NET. Reflector allows to easily view, navigate, search, decompile and analyze .NET assemblies in C#, Visual Basic and IL.
This is a great tool, which allows you to disassemble and view the contents of the .NET assemblies in C#, So whenever some class or interface seems very complex to you try opening it in Reflector!"

Workflow Samples

2008-04-18T04:53:00.000-07:00

Workflow Samples: "The InvokeWorkflowActivity in WF is asynchronous. This sample shows one way you might connect two workflows in a synchronous fashion"

HandleExternalEvent QueueName - MSDN Forums

2008-04-18T03:24:00.000-07:00

HandleExternalEvent QueueName- MSDN Forums: "When you use the HandleExternalEvent activity it creates the queuename using a class called EventQueueName. Since the queuename being referred to is IComparable, it can be any type that implements that interface. The EventQueueName is made up of the MethodName and the interface Type (as System.Type)."

Workflows and stuff...

2008-04-18T02:12:00.000-07:00

Workflows and stuff...: "Workflows and stuff..."

Serge Luca. Windows Workflow Foundation Explorations (U2U)

2008-04-18T02:07:00.000-07:00

Serge Luca. Windows Workflow Foundation Explorations (U2U)

Ulysses Agenda - Using Workflow to Script Enemy Behavior [The .NET Addict's Blog]

2008-04-18T02:02:00.000-07:00

Ulysses Agenda - Using Workflow to Script Enemy Behavior [The .NET Addict's Blog]

Re: WorkflowQueue or ExternalDataExchange? - MSDN Forums

2008-04-18T01:52:00.000-07:00

WorkflowQueue or ExternalDataExchange - MSDN Forums: "Queues are the underlying technology used by the ExternalDataExchange. Using HandleExternalEvent and CallExternalMethod give you a structured development experience (i.e. using local services, raising events for the workflow, interface-based messaging contracts). You are correct - in essence, they are essentially performing the same function - enqueueing an item onto a workflow queue. The choice of which route to take depends on whether the ExternalDataExchange infrastructure meets your needs. If it does, and makes host-instance communication simpler, then by all means use it. If you're looking to implement a more custom or complex scenario, then you always have the power and flexibility of the queueing infrastructure at your disposal."

Workflow Queues

2008-04-18T01:47:00.000-07:00

You can have a custom activity which inherits from IEventActivity and IActivityEventListener and implements Workflow Queues
so that the host can communicate with the WFInstances without using the
ExternalDataExchangeService.
Use Instance1.EnqueueItem , Instance1.EnqueueItemOnIdle...

Integrating Windows Workflow Foundation and Windows Communication Foundation

2008-04-17T05:25:00.000-07:00

Integrating Windows Workflow Foundation and Windows Communication Foundation: "Integrating Windows Workflow Foundation and Windows Communication Foundation"

WCF Community Bloggers : Windows Workflow 102 or WF Part 2

2008-04-17T04:25:00.000-07:00

WCF Community Bloggers : Windows Workflow 102 or WF Part 2: "ExternalDataExchangeService is not the only option for data in/out. One of the other main areas is WCF Integration, which actually can be achieved on top of the WorkflowQueuingService"

Advanced Workflow: Enabling Tricky Scenarios

2008-04-17T03:01:00.000-07:00

Advanced Workflow: Enabling Tricky Scenarios: "Advanced Workflow: Enabling Tricky Scenarios"

Microsoft Windows Workflow Foundation Step by Step Comments and Corrections

2008-04-17T02:50:00.000-07:00

Microsoft Windows Workflow Foundation Step by Step Comments and Corrections: "The WF runtime and your application execute together in a .NET AppDomain. Although early in WF’s history there could be only a single instance of the WorkflowRuntime per AppDomain, contemporary versions allow multiple instances"

MindFusion XML Viewer

2008-04-14T10:07:00.000-07:00

MindFusion XML Viewer: "MindFusion's XML Viewer is a freeware program - It is used to scan the contents of an XML file in an easy-to-use environment. In addition you can make modification to the XML as follows:
Insert new items
Delete existing items
Add properties to specified items
Delete properties to specified items"

Richard's Braindump: How To Use the Windows Workflow Rules Engine By Itself

2008-04-12T00:11:00.000-07:00

Richard's Braindump: How To Use the Windows Workflow Rules Engine By Itself: "How To Use the Windows Workflow Rules Engine By Itself

Windows Workflow Foundation (WF) is a great technology for adding workflow functionality to any .NET application and it includes within it a very useful forward chaining rules engine."

Type information for activity was not found in database,The type may have been changed without versioning the assembly

2008-04-11T06:08:00.001-07:00

In case you are getting the aboce error in Windows Workflow Foundation it may be because you have a Tracking Service added to the RunTime to which you have saved the event log once.Then you may have changed your workflow definition by drag and drop an activity from the designer.Subsequent tracking will give the above error.To solve it you have to create a new Tracking Database.

Moonlight - Mono

2008-04-11T04:31:00.001-07:00

Moonlight - Mono: "Moonlight
From Mono
A page to track the various projects that make up the Mono-based implementation of Silverlight.
The goals are:
To run Silverlight applications on Linux.
To provide a Linux SDK to build Silverlight applications.
To reuse the Silverlight engine we have built for desktop applications"

Welcome to physicus': Milliseconds in C#

2008-04-11T04:31:00.000-07:00

Welcome to physicus': Milliseconds in C#: "If you want to see how long it takes executing a function in .Net (C#), you can use either Millisecond function or format a DateTime object with 'f'-'ffffff' pattern."

SqlTrackingService Class (System.Workflow.Runtime.Tracking)

2008-04-11T01:54:00.000-07:00

SqlTrackingService Class (System.Workflow.Runtime.Tracking): "SqlTrackingService Class
Represents a tracking service that uses a SQL database to store tracking information."

While using SQLTracking and SQLPersistence at the same time the workflow gets aborted

2008-04-11T01:36:00.000-07:00

Set TrackingServiceInstance.IsTransactional to false while using Persistence
and tracking at the same time otherwise the workflow aborts in between.

Workflow Instance doesnt get completed when you refer WorkflowInstanceID in a default property

2008-04-11T01:32:00.000-07:00

If you refer the Workflow Instance ID in a property then the Workflow Instance will
not get completed i.e. WorkflowCompleted Event will nto be called.
To solve this problem use a dependency property instead of the normal
default property.

Moustafa Khalil Ahmed's Space : Managing Workflow’s Lifecycle

2008-04-10T23:26:00.000-07:00

Moustafa Khalil Ahmed's Space : Managing Workflow’s Lifecycle: "Persistence Points
If a WorkflowPersistenceService is present (i.e. added to the WorkflowRuntime instance) the workflow instance state is persisted to a storage medium at the following points:
On the completion of activities which are marked with PersistOnClose (E.g. transaction scope activities)
Prior to workflow instance completion
Prior to workflow instance termination
When the workflow goes idle
When WorkflowInstance.Unload or WorkflowInstance.TryUnload are called"

VS 2008 JavaScript Intellisense - ScottGu's Blog

2008-04-09T23:03:00.000-07:00

VS 2008 JavaScript Intellisense - ScottGu's Blog: "VS 2008 JavaScript Intellisense
One of the features that web developers will really like with VS 2008 is its built-in support for JavaScript intellisense."

Intellisense for jQuery in Visual Studio 2008

2008-04-09T23:02:00.000-07:00

Intellisense for jQuery in Visual Studio 2008: "If you just want the annotated jQuery file download it here: jQuery with Intellisense comments. For more about it, read on!"

Types of Parameters in C#

2008-04-08T09:38:00.000-07:00

Types of Parameters in C#: "There are four different ways of passing parameters to a method in C#.The four different types of parameters are
1. Value
2. Out
3. Ref
4. Params"

Color Combination Theories

2008-04-07T08:52:00.000-07:00

Color Combination Theories: "Monochromatic Colors. A monochromatic color scheme uses one color, but 3 different shades of that color. Example: Light, Medium, and Dark Blue.
Triadic Colors. A triadic color combination comes from using 3 colors that are equally spaced (3 spaces) apart on the color wheel. This could be purple, green and orange or it could be blue, yellow and red etc.
Analogous Colors. You get an analogous grouping when you use three colors that are all next to each other on the color wheel. For example, blue, teal and green or green, yellow-green and yellow etc. This example was done using blue, green and teal-all colors next to each other on the color wheel."

Windows Workflow Foundation: Tracking Services Deep Dive

2008-04-05T02:41:00.000-07:00

Windows Workflow Foundation: Tracking Services Deep Dive: "Every running workflow instance is created and maintained by an in-process engine referred to as the Workflow Runtime Engine. The execution of the workflow can be tracked using the workflow tracking infrastructure. When a workflow instance executes, it sends events and associated data to tracking services that are registered with the workflow runtime. You can use the out-of-box SqlTrackingService or write a custom tracking service to intercept these events and use the data provided as required. Uses for tracking data include storing history information about the workflow, visualizing the workflow as it is running, or triggering some other business process."

- David Yack's Blog! - Workflow - The field on type does not exist

2008-04-04T23:49:00.000-07:00

- David Yack's Blog! - Workflow - The field on type does not exist: "If you are using a code separated workflow and get the following error:
Activity validation failed: Property 'Condition' has invalid value. Condition expression is invalid. The field on type does not exist or is not accessible.
It's because they don't have variables created for the activities like code workflow's.
So if in a rule for example you try to use the following syntax
this.testActivity1.Field1 == true
You will get the above error....it will drive you crazy until you try the following syntax
((ActivityNamespace.ActivityName)this.GetActivityByName('testActivity1')).Field1 == true"

2008-04-03T23:10:00.000-07:00

"Workflow Execution Context
One thing to get used to in dealing with WF is that there are layers of abstraction between the code that you write in the hosting application and the code that you write in your workflows. It is up to the runtime to create workflow instances, and you never have direct access to the workflow instance reference yourself. Likewise the workflow runtime will create activity instances and execute them at the appropriate time within an activity execution context, and you usually won't have direct instance references in the workflow to the activity instances running within it"

YouTube - LOST - John Locke - Speed Painting by Nico Di Mattia

2008-03-30T08:38:00.001-07:00

YouTube - LOST - John Locke - Speed Painting by Nico Di Mattia: "LOST - John Locke - Speed Painting by Nico Di Mattia"

YouTube - SPIDER-MAN Speed Painting by Nico Di Mattia

2008-03-30T08:38:00.000-07:00

YouTube - SPIDER-MAN Speed Painting by Nico Di Mattia: "SPIDER-MAN Speed Painting by Nico Di Mattia"

YouTube - Blender 3D Physics test

2008-03-30T08:24:00.000-07:00

YouTube - Blender 3D Physics test: "Blender 3D Physics test"

YouTube - Blender 3D AO + Physics Sim Eye Candy

2008-03-30T08:22:00.000-07:00

YouTube - Blender 3D AO + Physics Sim Eye Candy: "Blender 3D AO + Physics Sim Eye Candy"

YouTube - Blender 3D Fluid

2008-03-30T08:13:00.000-07:00

YouTube - Blender 3D Fluid: "Blender 3D Fluid"

YouTube - Blender's new Interactive Render mode

2008-03-30T08:11:00.000-07:00

YouTube - Blender's new Interactive Render mode: "Blender's new Interactive Render mode"

YouTube - Blender Soft Body Animation

2008-03-30T08:03:00.000-07:00

YouTube - Blender Soft Body Animation: "Blender Soft Body Animation"

YouTube - Blender Cloth Test

2008-03-30T07:59:00.000-07:00

YouTube - Blender Cloth Test: "Blender Cloth Test"

ServiceBase Class (System.ServiceProcess)

2008-03-19T02:09:00.001-07:00

ServiceBase Class (System.ServiceProcess): "A service is a long-running executable that does not support a user interface, and which might not run under the logged-on user account. The service can run without any user being logged on to the computer."

ServiceBase Class (System.ServiceProcess)

2008-03-19T02:09:00.000-07:00