http://tutorial.visualstudioteamsystem.com This is the syndication feed for tutorial.visualstudioteamsystem.com Often times developers need to come up with the alphabet for a very long list of values, so that list can be broken into chunks and then each of those chunks can be retrieved based on the first letter or firts symbol of the text. http://tutorial.visualstudioteamsystem.com/details.aspx?item=148 constantine@tutorial.visualstudioteamsystem.com Fri, 12 Sep 2008 15:41:56 GMT http://tutorial.visualstudioteamsystem.com/details.aspx?item=148 SQL, First letter Find a list of funcations and specifiers that help you to format Date and Time with the help of C# http://tutorial.visualstudioteamsystem.com/details.aspx?item=147 constantine@tutorial.visualstudioteamsystem.com Wed, 27 Aug 2008 15:25:34 GMT http://tutorial.visualstudioteamsystem.com/details.aspx?item=147 Date, Time, Formatting, C# CultureRegionAndInfoBuilder class is used when current selection of built-in cultures is not enough. http://tutorial.visualstudioteamsystem.com/details.aspx?item=146 constantine@tutorial.visualstudioteamsystem.com Fri, 01 Aug 2008 05:29:44 GMT http://tutorial.visualstudioteamsystem.com/details.aspx?item=146 Custom, Culture, Creation, C#, .NET Framework System.Globalization name space helps us to work with different environments our application will be deployed and ran. With the globalization of world economies, globalizing application we use for business and other reasons becomes very important. http://tutorial.visualstudioteamsystem.com/details.aspx?item=145 constantine@tutorial.visualstudioteamsystem.com Fri, 01 Aug 2008 05:28:19 GMT http://tutorial.visualstudioteamsystem.com/details.aspx?item=145 Culture Information, System.Globalization, C#, .NET Framework Sending email is quite simple, first we create email message with the help of constructor and then call on SmtpClient method called Send with the message object as its parameter. http://tutorial.visualstudioteamsystem.com/details.aspx?item=144 constantine@tutorial.visualstudioteamsystem.com Fri, 01 Aug 2008 05:26:36 GMT http://tutorial.visualstudioteamsystem.com/details.aspx?item=144 Sending, Email Messages, C#, ASP.NET, Framework There are several steps we have to go through in order to create and send email from within our C# code. http://tutorial.visualstudioteamsystem.com/details.aspx?item=143 constantine@tutorial.visualstudioteamsystem.com Fri, 01 Aug 2008 05:25:06 GMT http://tutorial.visualstudioteamsystem.com/details.aspx?item=143 Creating, Mail Messages, C#, ASP.NET, Framework Reflection can be used to create code at runtime. It includes namespace called System.Reflection.Emit that houses set of builder classes that take care of creating code. http://tutorial.visualstudioteamsystem.com/details.aspx?item=142 constantine@tutorial.visualstudioteamsystem.com Fri, 01 Aug 2008 05:23:00 GMT http://tutorial.visualstudioteamsystem.com/details.aspx?item=142 Creating, Code, runtime, C#, .NET Framework One of the capabilities that Reflection provides besides META data on the Assembly is the capability to create objects dynamically. http://tutorial.visualstudioteamsystem.com/details.aspx?item=141 constantine@tutorial.visualstudioteamsystem.com Fri, 01 Aug 2008 05:21:19 GMT http://tutorial.visualstudioteamsystem.com/details.aspx?item=141 Dynamic, Objects, Dynamic Code, C#, ASP.NET, Framework There are several ways we can obtain Type objects. We can get it from Assembly Class http://tutorial.visualstudioteamsystem.com/details.aspx?item=140 constantine@tutorial.visualstudioteamsystem.com Fri, 01 Aug 2008 05:19:53 GMT http://tutorial.visualstudioteamsystem.com/details.aspx?item=140 Reflecting, Types, .NET Framework, Assemblies Assemblies have built-in attributes that are very helpful during our Assembly interrogation. In addition, we can add our own attributes to describe Assemblies even further. http://tutorial.visualstudioteamsystem.com/details.aspx?item=139 constantine@tutorial.visualstudioteamsystem.com Fri, 01 Aug 2008 05:18:30 GMT http://tutorial.visualstudioteamsystem.com/details.aspx?item=139 C#, Assembly, Attributes, NET Framework Assembly is more than we think of it. Even it looks just one file; it contains several pieces of information. http://tutorial.visualstudioteamsystem.com/details.aspx?item=138 constantine@tutorial.visualstudioteamsystem.com Fri, 01 Aug 2008 05:17:09 GMT http://tutorial.visualstudioteamsystem.com/details.aspx?item=138 .NET, Framework, Reflection, C# We use Platform Invoke or P/Invoke when we want to call on unmanaged Windows API in case we don’t have a wrapper built into the .NET Framework. http://tutorial.visualstudioteamsystem.com/details.aspx?item=137 constantine@tutorial.visualstudioteamsystem.com Thu, 31 Jul 2008 16:51:21 GMT http://tutorial.visualstudioteamsystem.com/details.aspx?item=137 Using Unmanaged Code with .NET Framework We can use .NET code from within COM and proxy called COM Callable Wrapper (CCW) is responsible for this interoperability http://tutorial.visualstudioteamsystem.com/details.aspx?item=136 constantine@tutorial.visualstudioteamsystem.com Thu, 31 Jul 2008 16:50:05 GMT http://tutorial.visualstudioteamsystem.com/details.aspx?item=136 .NET, Components, COM There are several reasons .NET Framework accommodates interoperability between old and new technologies. http://tutorial.visualstudioteamsystem.com/details.aspx?item=135 constantine@tutorial.visualstudioteamsystem.com Thu, 31 Jul 2008 16:48:19 GMT http://tutorial.visualstudioteamsystem.com/details.aspx?item=135 C#, Interop, Implementation, .NET Framework Digital signature can be appended to a file in order to validate this file as a file created by the user with the specific private key. This is important for one main reason; it authenticates the identity of the user when he/she is transmitting the file. http://tutorial.visualstudioteamsystem.com/details.aspx?item=134 constantine@tutorial.visualstudioteamsystem.com Thu, 31 Jul 2008 16:46:54 GMT http://tutorial.visualstudioteamsystem.com/details.aspx?item=134 Digital Signature, Implementation, C#, .NET Framework Hash is used to verify that data was not tempered during transmission. Hash is a checksum value generated and assigned to a file. Hash generation is only happen once; we cannot get a value out of hash. In some instances, we don’t even store a password but its hash value. http://tutorial.visualstudioteamsystem.com/details.aspx?item=133 constantine@tutorial.visualstudioteamsystem.com Thu, 31 Jul 2008 16:45:03 GMT http://tutorial.visualstudioteamsystem.com/details.aspx?item=133 C#, Hash, Algorithm, NET Framework, Data Protection Asymmetric is different from symmetric in one major way. It does not require both parties to have a key. It’s the best solution for the internet since we have clients who don’t have keys while loading encrypted content to their computers. http://tutorial.visualstudioteamsystem.com/details.aspx?item=132 constantine@tutorial.visualstudioteamsystem.com Thu, 31 Jul 2008 16:43:39 GMT http://tutorial.visualstudioteamsystem.com/details.aspx?item=132 C#, Asymmetric Encryption, Decryption, .NET Framework Encryption is a method to garble text into another form of text not recognizable to people. There two main types of encryption. We’ll examine them in more details. http://tutorial.visualstudioteamsystem.com/details.aspx?item=131 constantine@tutorial.visualstudioteamsystem.com Thu, 31 Jul 2008 16:42:20 GMT http://tutorial.visualstudioteamsystem.com/details.aspx?item=131 C#, Symmetric Encryption, Decryption, .NET Framework Access Control Lists used by Operating System to restrict access to files, folders, registry, printers, services, and other resource. We need to know ACL for several reasons. http://tutorial.visualstudioteamsystem.com/details.aspx?item=130 constantine@tutorial.visualstudioteamsystem.com Thu, 31 Jul 2008 16:40:57 GMT http://tutorial.visualstudioteamsystem.com/details.aspx?item=130 Access, Control, List, C#, .NET Framework Sometime you require using different database of users when authenticating users. This will require you to create custom authentication with customer users and custom roles. http://tutorial.visualstudioteamsystem.com/details.aspx?item=129 constantine@tutorial.visualstudioteamsystem.com Thu, 31 Jul 2008 16:39:31 GMT http://tutorial.visualstudioteamsystem.com/details.aspx?item=129 Implementing, Custom Users, Roles, ASP.NET, Security, Framework We can use declarative role-based security demand to limit access to any given method. Couple things to watch out are: they can produce runtime exception error and they apply to entire method. In our example AdministratorsOnlyMethod() is protected with RBS http://tutorial.visualstudioteamsystem.com/details.aspx?item=128 constantine@tutorial.visualstudioteamsystem.com Thu, 31 Jul 2008 16:37:46 GMT http://tutorial.visualstudioteamsystem.com/details.aspx?item=128 Role Based, Security, Limited Method, Access, ASP.NET Framework Authentication is the process of identifying user with his/her user id/password combination. Authorization is the process of identifying is user has sufficient privileges to access requested resource. http://tutorial.visualstudioteamsystem.com/details.aspx?item=127 constantine@tutorial.visualstudioteamsystem.com Thu, 31 Jul 2008 13:17:25 GMT http://tutorial.visualstudioteamsystem.com/details.aspx?item=127 Authentication, Authorization, ASP.NET, Framework When Code Access Security is used declaratively compiler checks code for security exceptions and if Code Access Security is used imperatively code itself checks for security exceptions. http://tutorial.visualstudioteamsystem.com/details.aspx?item=126 constantine@tutorial.visualstudioteamsystem.com Thu, 31 Jul 2008 13:15:56 GMT http://tutorial.visualstudioteamsystem.com/details.aspx?item=126 Declarative, Imperative, Security, Protect, C#, Methods Sometime we want to ensure inside our code that we have sufficient privileges to run our application and that we don’t have permission that are too excessive so that entire system can be jeopardized. There are three main specific reasons why we want to use declarative CAS. http://tutorial.visualstudioteamsystem.com/details.aspx?item=125 constantine@tutorial.visualstudioteamsystem.com Thu, 31 Jul 2008 13:14:02 GMT http://tutorial.visualstudioteamsystem.com/details.aspx?item=125 Declarative, CAS, .NET Framework Code Access Security or CAS allows managing application security in a very similar way we manage user security. We can use CAS to authorize application to write to registry for instance. http://tutorial.visualstudioteamsystem.com/details.aspx?item=124 constantine@tutorial.visualstudioteamsystem.com Thu, 31 Jul 2008 08:25:37 GMT http://tutorial.visualstudioteamsystem.com/details.aspx?item=124 ASP.NET, Framework, C#, Code, Access, Security We can always start a process in two different ways; without command-line argument and with command-line arguments. In order to start process you need to call Start method of the Process class. http://tutorial.visualstudioteamsystem.com/details.aspx?item=123 constantine@tutorial.visualstudioteamsystem.com Thu, 31 Jul 2008 08:23:45 GMT http://tutorial.visualstudioteamsystem.com/details.aspx?item=123 Staring up, Process, C#, .NET Framework We need to understand reasons behind performance degradation when we experience performance problems with our application. The most important task before we start looking at application performance is to set performance guidelines for our application that we can use to gage and compare against when running performance counters on actual application. http://tutorial.visualstudioteamsystem.com/details.aspx?item=122 constantine@tutorial.visualstudioteamsystem.com Thu, 31 Jul 2008 08:22:20 GMT http://tutorial.visualstudioteamsystem.com/details.aspx?item=122 Performance, Counters, C#, PerformanceCounter, Objects Performance of your application is very important to the end user. After you release your project for production deployment and users start hitting your web site you may run into problems with the performance of your site for example http://tutorial.visualstudioteamsystem.com/details.aspx?item=121 constantine@tutorial.visualstudioteamsystem.com Thu, 31 Jul 2008 08:20:39 GMT http://tutorial.visualstudioteamsystem.com/details.aspx?item=121 Performance, monitoring, System.Diagnostics, .NET Framework Both Debug and Trace are dependent on Listeners and both of them have Listener collections. Listener takes output from the Debug and Trace and outputs into Output Window. http://tutorial.visualstudioteamsystem.com/details.aspx?item=120 constantine@tutorial.visualstudioteamsystem.com Thu, 31 Jul 2008 08:18:55 GMT http://tutorial.visualstudioteamsystem.com/details.aspx?item=120 Listener, .NET Framework, C# Debug and Debugger classes are very important when we try to see if our code execution is as planned and also to keep track of bugs after production deployment. http://tutorial.visualstudioteamsystem.com/details.aspx?item=119 constantine@tutorial.visualstudioteamsystem.com Thu, 31 Jul 2008 08:16:35 GMT http://tutorial.visualstudioteamsystem.com/details.aspx?item=119 Debugging, Tracing, C#, ASP.NET, Framework We can use Event log to store any error that our application generates as a result of testing or daily usage by the users. It is very useful when we are trying to log error messages which are events as well. The primary advantage is that we can see very detailed report of errors that occurred. http://tutorial.visualstudioteamsystem.com/details.aspx?item=118 constantine@tutorial.visualstudioteamsystem.com Thu, 31 Jul 2008 04:45:19 GMT http://tutorial.visualstudioteamsystem.com/details.aspx?item=118 Logging, Event, C#, .Net Framework, Event Log We do configuration management when we want to set up SQL server connection string, or selection version of the runtime engine your application suppose to use. http://tutorial.visualstudioteamsystem.com/details.aspx?item=117 constantine@tutorial.visualstudioteamsystem.com Thu, 31 Jul 2008 04:43:22 GMT http://tutorial.visualstudioteamsystem.com/details.aspx?item=117 Configuration, Management, .NET, Framework, ConfigurationManager New version of .NET Framework 2.0 comes with different tools that can be found by opening up Microsoft Management Console snap-in. There are several areas where this tool is the most useful. http://tutorial.visualstudioteamsystem.com/details.aspx?item=116 constantine@tutorial.visualstudioteamsystem.com Thu, 31 Jul 2008 04:41:51 GMT http://tutorial.visualstudioteamsystem.com/details.aspx?item=116 .NET, Framework, Configuration Tool Installer is very important part of any application deployment process which is written in .NET Code be it C# or VB.NET or ASP.NET. We achieve several important objectives by employing installer class within .NET framework. http://tutorial.visualstudioteamsystem.com/details.aspx?item=115 constantine@tutorial.visualstudioteamsystem.com Thu, 31 Jul 2008 04:40:20 GMT http://tutorial.visualstudioteamsystem.com/details.aspx?item=115 Using Installer with Installer class in .NET Framework Application Settings are different from user setting since configuration values of application settings apply to the entire application. Normally, we will store database connection strings, web services URL, Remoting settings. http://tutorial.visualstudioteamsystem.com/details.aspx?item=114 constantine@tutorial.visualstudioteamsystem.com Thu, 31 Jul 2008 04:38:50 GMT http://tutorial.visualstudioteamsystem.com/details.aspx?item=114 Configuring, Application, Settings, .NET Framework Sometime we need to hardcode values into our code, but this is not the best practice since we’ll have to recompile code every time we need to update our application with new hard coded value or changes to such a value. In other word hard coding is bad. .NET Framework addresses this issue with the new way of specifying values that we would hard coded otherwise. http://tutorial.visualstudioteamsystem.com/details.aspx?item=113 constantine@tutorial.visualstudioteamsystem.com Thu, 31 Jul 2008 04:36:47 GMT http://tutorial.visualstudioteamsystem.com/details.aspx?item=113 Configuring, ASP.NET, Application, System.Configuration There are times when we need to run code without user interaction. For instance, we need to listen for certain event on the network and etc… in this case regular ASP.NET development will not work and you need to use Windows Services which is the most suitable in cases like that. http://tutorial.visualstudioteamsystem.com/details.aspx?item=112 constantine@tutorial.visualstudioteamsystem.com Thu, 31 Jul 2008 04:35:02 GMT http://tutorial.visualstudioteamsystem.com/details.aspx?item=112 Windows, Services, implementation, C#, .NET Framework We are provided with default configuration of app. domain. However, we can always configure it ourselves. This is important to know if we need to enhance security of our code. http://tutorial.visualstudioteamsystem.com/details.aspx?item=111 constantine@tutorial.visualstudioteamsystem.com Thu, 31 Jul 2008 04:33:36 GMT http://tutorial.visualstudioteamsystem.com/details.aspx?item=111 Configuring, App. domains, .NET Framework App. domains allow us to run Assemblies within same process space but without direct access to other assemblies’ memories. The main advantage of app. domains over separate processes is that app. domains don’t require too much of start up cost as processes do. http://tutorial.visualstudioteamsystem.com/details.aspx?item=110 constantine@tutorial.visualstudioteamsystem.com Thu, 31 Jul 2008 04:32:07 GMT http://tutorial.visualstudioteamsystem.com/details.aspx?item=110 App. domains, AppDomain, implementation, C#, .Net Framework Asynchronous programming allows you to execute code in threads. Many classes in .NET allow Asynchronous programming methods with the methods that prefixed with BeginXXX and EndXXX. http://tutorial.visualstudioteamsystem.com/details.aspx?item=109 constantine@tutorial.visualstudioteamsystem.com Thu, 31 Jul 2008 04:30:14 GMT http://tutorial.visualstudioteamsystem.com/details.aspx?item=109 Asynchronous, Programming, C#, ASP.NET, Framework Once we employ many threads at a same time the data integrity becomes very important. We don’t want situation when two threads access same data and update it in a wrong way. For instance, if we have access to counter within multiple threads this counter may have lesser value than expected http://tutorial.visualstudioteamsystem.com/details.aspx?item=108 constantine@tutorial.visualstudioteamsystem.com Wed, 30 Jul 2008 15:36:05 GMT http://tutorial.visualstudioteamsystem.com/details.aspx?item=108 Sharing, Data, multiple, Threads, C#, .NET Framework We cannot just start thread without any reason so most of the time you will be starting thread with the data and the only way to do it is to start it with ParameterizedStartThread delegate http://tutorial.visualstudioteamsystem.com/details.aspx?item=107 constantine@tutorial.visualstudioteamsystem.com Wed, 30 Jul 2008 15:34:01 GMT http://tutorial.visualstudioteamsystem.com/details.aspx?item=107 Passing, Data, Thread, C# We can run processes in parallel and in order to accomplish this with C# we use Threads. The most basic class that we want to know first is Thread with the following properties and methods http://tutorial.visualstudioteamsystem.com/details.aspx?item=106 constantine@tutorial.visualstudioteamsystem.com Wed, 30 Jul 2008 15:32:19 GMT http://tutorial.visualstudioteamsystem.com/details.aspx?item=106 C#, Thread implementation, .NET Framework Font class is the primary class for setting up text formats and it offers wide range of constructors. http://tutorial.visualstudioteamsystem.com/details.aspx?item=105 constantine@tutorial.visualstudioteamsystem.com Wed, 30 Jul 2008 15:27:27 GMT http://tutorial.visualstudioteamsystem.com/details.aspx?item=105 Formatting, Text, C#, ASP.NET, Framework You can work with several types of files in ASP.NET. Here is a list of most widely use .BMP, .JPG, and .TIF files. With the help of .NET we can create pictures, resize, and incorporate watermarks or text. http://tutorial.visualstudioteamsystem.com/details.aspx?item=104 constantine@tutorial.visualstudioteamsystem.com Wed, 30 Jul 2008 15:26:57 GMT http://tutorial.visualstudioteamsystem.com/details.aspx?item=104 Working, images, help, System.Drawing.Image System.Drawing namespace provides the most important classes for drawing. http://tutorial.visualstudioteamsystem.com/details.aspx?item=103 constantine@tutorial.visualstudioteamsystem.com Wed, 30 Jul 2008 15:24:24 GMT http://tutorial.visualstudioteamsystem.com/details.aspx?item=103 Drawing Graphics, System.Drawing, namespace, C#, .NET Framework .NET Framework supports binary serialization. Picture pretty much self explanatory. http://tutorial.visualstudioteamsystem.com/details.aspx?item=102 constantine@tutorial.visualstudioteamsystem.com Wed, 30 Jul 2008 15:21:15 GMT http://tutorial.visualstudioteamsystem.com/details.aspx?item=102 Serialization, Events, .NET Framework You can always go extra mile with the serialization and implement your own custom serialization by overriding built in serialization implementation. You do that with the help of ISerializable interface and applying Serializable attribute to the class of interest. Implementing ISerializable interface will require you to use GetObjectData method and constructor that is used for the deserialization. http://tutorial.visualstudioteamsystem.com/details.aspx?item=101 constantine@tutorial.visualstudioteamsystem.com Wed, 30 Jul 2008 15:19:13 GMT http://tutorial.visualstudioteamsystem.com/details.aspx?item=101 Custom Serialization, .NET Framework The main reason we want to have control over the XML serialization is when we need to conform to certain standard and our XML generated from the class does not match requirements of the standard. http://tutorial.visualstudioteamsystem.com/details.aspx?item=100 constantine@tutorial.visualstudioteamsystem.com Wed, 30 Jul 2008 15:17:03 GMT http://tutorial.visualstudioteamsystem.com/details.aspx?item=100 Controlling, serialization, help, attributes XML Serialization is identical to standard serialization the only difference is that you don’t need to use Serializable attribute for XML serialization http://tutorial.visualstudioteamsystem.com/details.aspx?item=99 constantine@tutorial.visualstudioteamsystem.com Wed, 30 Jul 2008 15:14:35 GMT http://tutorial.visualstudioteamsystem.com/details.aspx?item=99 XML, Serialization, Deserialization, C#, .NET Framework