Show Hidden Files Issue / Problem (due to Virus)

November 27, 2007 at 4:32 am (virus)

For many days i was facing an issue that hidden files were not showing up in my PC even if i enabled the show Hidden Files checkbox in the Folder Options dialog box. I edited various values in the registry, but i was not able to solve the problem. Then i browsed through this link and found a solution for showing hidden files.

The steps are :-

  • Open registry( select run command from start menu and type regedit and then press enter)
  • In the left pane goto path HKEY_LOCAL_MACHINESoftware\Microsoft \Windows \CurrentVersion \Explorer \Advanced \Folder \Hidden \SHOWALL
  • Delete the value CheckedValue in the Right pane by right clicking it and selecting delete. (Its type should be REG_SZ and data should be 2.)
  • Create a new DWORD value called CheckedValue by right clicking in the Right pane and then selecting new -> DWORD Value and then changing the name to CheckedValue. (same as above, except that the type is REG_DWORD). Modify the value data to 1 (0x00000001) by right clicking the CheckedValue in the Right pane and selecting modify and changing the value data to 1.

This should let you change the “Hidden Files and Folders” option.

Why this happens? The fact that the hidden files were not showing up was due to virus which would have changed the value in the registry and the virus may be still present. Even when the virus was removed the old value may not have been restored in the registry.

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Basic Event Handling in .NET

November 26, 2007 at 9:35 am (.NET, ASP.NET)

Event:

Almost all users using the GUI operating system must be knowing what is event?. Event takes place when an user interacts with the GUI(Event is not always initiated by user). The event inturn invokes methods(Event handler) to handle the event.

Various common events are:
Click
TextChanged
MouseHover
MouseMove
MouseEnter
gotFocus
lostFocus
KeyPress
KeyUp
KeyDown etc.

In addition the User can create his own events.

The simple example for the Event handling is explained here:- Read the rest of this entry »

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MCTS Exam 70-536 Preparation

November 22, 2007 at 6:38 am (.NET, ASP.NET, Certification, MCTS)

I prepared the schedule to complete,

Exam 70–536: Microsoft .NET Framework 2.0 – Application Development Foundation.

I need to spend 1 hour during the weekdays and 2 and 1/2 hours during weekends to complete preparation in about 3 months. It took about an hour to prepare the schedule. To see the schedule click here

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MCTS Exam 70-536 Schedule

November 22, 2007 at 6:37 am (.NET, ASP.NET, Certification, MCTS)

The schedule is here:

Application Development Foundation(Exam 70 – 536):-
====================================================

Chapter 1 : Framework Fundamentals(2 hrs 10 mins).
1. Using Value Types(30 Minutes).
2. Using Common Reference Types(40 Minutes).
3. Constructing Classes(40 Minutes).
4. Converting between Types(20 Minutes).

Chapter 2 : Input/Output(1 hr 5 mins).
1. Navigating the File System(20 Minutes).
2. Reading and Writing Files(20 Minutes).
3. Compressing Streams(10 Minutes).
4. Working with Isolated Storage(15 Minutes).

Chapter 3 : Searching, Modifying and Encoding Text(1 hr 15 mins).
1. Forming Regular Expressions(45 Minutes).
2. Encoding and Decoding(30 Minutes).

Chapter 4 : Collections and Generics(1 hr 45 mins).
1. Collecting Data Items(15 Minutes).
2. Working with Sequential Lists(10 Minutes).
3. Working with Dictionaries(30 Minutes).
4. Using Specialized Collections(30 Minutes).
5. Generic Collections(20 Minutes).

Chapter 5 : Serialization(1 hr 55 mins).
1. Serializing Objects(45 Minutes).
2. XML Serialization(40 Minutes).
3. Custom Serialization(30 Minutes).

Chapter 6 : Graphics(2 hr).
1. Drawing Graphics(60 Minutes).
2. Working with Images(30 Minutes).
3. Formatting Text(30 Minutes).

Chapter 7 : Threading(1 hr 40 mins).
1. Creating Threads(20 Minutes).
2. Sharing Data(40 Minutes).
3. The Asynchronous Programming Model(40 Minutes).

Chapter 8 : Application Domains and Services(1 hr 30 mins).
1. Creating Application Domains(20 Minutes).
2. Configuring Application Domains(25 Minutes).
3. Creating Windows Services(45 Minutes).

Chapter 9 : Installing and Configuring Applications(1 hr 25 mins).
1. Configuring Settings(20 Minutes).
2. Creating an Installer(25 Minutes).
3. Using the .NET Framework 2.0 Configuration Tool(15 Minutes).
4. Configuration Management(25 Minutes).

Chapter 10 : Instrumentation(1 hr 20 mins).
1. Logging Events(20 Minutes).
2. Debugging and Tracing(20 Minutes).
3. Monitoring Performance(20 Minutes).
4. Detecting Management Events(20 Minutes).

Chapter 11 : Application Security(2 hr 30 mins).
1. Understanding Code Access Security(60 Minutes).
2. Using Declarative Security to Protect Assemblies(45 Minutes).
3. Using Declarative and Imperative Security to Protect Methods(45 Minutes).

Chapter 12 : User and Data Security(2 hr 30 mins).
1. Authenticating and Authorizing Users(90 Minutes).
2. Using Access Control Lists(30 Minutes).
3. Encrypting and Decrypting Data(90 Minutes).

Chapter 13 : Interoperation(1 hr).
1. Using COM objects(20 Minutes).
2. Exposing .NET Components to COM(20 Minutes).
3. Using Unmanaged Code(20 Minutes).

Chapter 14 : Reflection(1 hr 25 mins).
1. Understanding Reflection(15 Minutes).
2. Assembly Attributes(20 Minutes).
3. Reflecting Types(25 Minutes).
4. Writing Dynamic Code(15 Minutes).
5. Creating Code at Runtime(10 Minutes).

Chapter 15 : Mail(1 hr).
1. Creating a Mail Message(30 Minutes).
2. Sending Mail(30 Minutes).

Chapter 16 : Globalization(40 mins).
1. Using Culture Information(20 Minutes).
2. Creating Custom Culture(20 Minutes).

Chapter Specified Time Estimated Time Actual Time
1 2.10 8.40 –.–
2 1.05 4.20 –.–
3 1.15 5.00 –.–
4 1.45 7.00 –.–
5 1.55 7.40 –.–
6 2.00 8.00 –.–
7 1.40 6.40 –.–
8 1.30 6.00 –.–
9 1.25 5.40 –.–
10 1.20 5.20 –.–
11 2.30 10.00 –.–
12 3.30 14.00 –.–
13 1.00 4.00 –.–
14 1.25 5.40 –.–
15 1.00 4.00 –.–
16 0.40 2.40 –.–
Total 26.10 hrs 104.40 hrs

* In addition to reading each lesson we have lab exercises which is estimated to be double the specified time for reading.

* In addition to each chapter we have a case scenario which is estimated to be as much as specified time.

* so Total preparation time = total specified time * 4 = 26.10 * 4 = 104.40 hrs.

* Staring date of preparation => 5/11/2007.

* Taking 1 hour for each weekday and 2.30 hr for each weekend day we prepare for 10 hrs each week which will take 10 weeks to complete and 1 day to complete.

* 1 week for relaxation in between

* Estimated Completion date =>
21/01/2008.

* 10 days for practice tests.

* Estimated Exam date => 02/02/2008.

Short term goals :-

Chapter 1 => 11/11/2007 8.40
Chapter 2 => 16/11/2007 4.20
Chapter 3 => 18/11/2007 5.00
Chapter 4 => 24/11/2007 7.00
Chapter 5 => 30/11/2007 7.40
Chapter 6 => 05/12/2007 8.00
Chapter 7 => 09/12/2007 6.40
Chapter 8 => 15/12/2007 6.00
Chapter 9 => 20/12/2008 5.40
Chapter 10 => 23/12/2008 5.20
Chapter 11 => 30/01/2008 10.00
Chapter 12 => 06/01/2008 14.00
Chapter 13 => 10/01/2008 4.00
Chapter 14 => 13/01/2008 5.40
Chapter 15 => 17/01/2008 4.00
Chapter 16 => 19/01/2008 2.40

All the Best !!!!!

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MCTS Exam

November 22, 2007 at 6:09 am (.NET, ASP.NET, Certification, MCTS)

Hi Tech Guys ,

Anybody planning to do MCTS .NET Framework 2.0 , This will be helpful to you. MCTS stands for Microsoft Certified Technology Specialist. It describes that you are specialist in a particular technology. It comes for various technologies such as,

and Many more … for all MCTS exams available see here.

I’m planning to write MCTS for .NET Framework 2.0 Web Application.It involves 2 exams namely,

  • Exam 70–536: Microsoft .NET Framework 2.0 – Application Development Foundation
  • Exam 70–528: Microsoft .NET Framework 2.0 – Web-Based Client Development

I have prepared the schedule to follow to complete Exam 70-536 in about 3 months time(1 hour preparation during weekdays and 2 1\2 hours during weekends).

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