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What is .NET / .NET Framework?
It is a Framework in which Windows applications may be developed and run.The Microsoft .NET Framework is a platform for building, deploying, and running Web Services and applications. It provides a highly productive, standards-based, multi-language environment for integrating existing investments with next-generation applications and services as well as the agility to solve the challenges of deployment...
samiksc
- Jan 13th, 2006
.Net framework is a platform for building, deploying and running web services and other applications. It provides memory management and a rich set of classes.It facilitates integration of code written...
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What is "Microsoft Intermediate Language" (MSIL)?
A .NET programming language (C#, VB.NET, J# etc.) does not compile into executable code; instead it compiles into an intermediate code called Microsoft Intermediate Language (MSIL). As a programmer one need not worry about the syntax of MSIL - since our source code in automatically converted to MSIL. The MSIL code is then send to the CLR (Common Language Runtime) that converts the code to...
samiksc
- Jan 13th, 2006
MSIL is Microsoft Intermediate Language which is platform independent. Any .Net application is compiled in two steps -- first the high level language compiler compiles it into MSIL and then the CLR co...
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What is "Common Type System" (CTS)?
CTS defines all of the basic types that can be used in the .NET Framework and the operations performed on those type. All this time we have been talking about language interoperability, and .NET Class Framework. None of this is possible without all the language sharing the same data types. What this means is that an int should mean the same in VB, VC++, C# and all other .NET compliant...
samiksc
- Jan 13th, 2006
CTS, common type system is the one which brings all .net languages data types on a common platform. It defines types like System.Int16, System.Int32 etc. A language may map 'int' to System.Int16 while...
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What is a Manifest?
An assembly manifest contains all the metadata needed to specify the assembly's version requirements and security identity, and all metadata needed to define the scope of the assembly and resolve references to resources and classes. The assembly manifest can be stored in either a PE (Portable Executable) file (an .exe or .dll) with Microsoft intermediate language (MSIL) code or in a standalone...
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What is a Strong Name?
A strong name consists of the assembly's identity — its simple text name, version number, and culture information (if provided) — plus a public key and a digital signature. It is generated from an assembly file (the file that contains the assembly manifest, which in turn contains the names and hashes of all the files that make up the assembly), using the corresponding private ...
samiksc
- Jan 13th, 2006
A strong name is a way to ensure that a shared assembly's name does not conflict with another shared assembly. A strong name contains assembly name, a public key and a private key. For installing an a...
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Creating a Key Pair
You can create a key pair using the Strong Name tool (Sn.exe). Key pair files usually have an .snk extension.To create a key pair At the command prompt, type the following command: sn –k <file name> In this command, file name is the name of the output file containing the key pair. The following example creates a key pair called sgKey.snk. sn -k sgKey.snk
samiksc
- Jan 16th, 2006
To create a key pair use the dotnet command line tool sn.exesn.exe -k mykey.snkThis filename is used as the attribute value for AssemblyKeyFileAttribute in one of the code files of assembly. It generates a strong named assembly which could be installed into the GAC.
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What is an Intermediate language?
Assemblies are made up of IL code modules and the metadata that describes them. Although programs may be compiled via an IDE or the command line, in fact, they are simply translated into IL, not machine code. The actual machine code is not generated until the function that requires it is called. This is the just-in-time, or JIT, compilation feature of .NET. JIT compilation happens at runtime...
samiksc
- Jan 16th, 2006
MSIL is the intermediate language which is platform independent. High level language compilers for .Net languages compile the high level code into IL which is not hardware specific. The use of IL allo...
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What are Attributes?
Attributes are declarative tags in code that insert additional metadata into an assembly. There exist two types of attributes in the .NET Framework: Predefined attributes such as AssemblyVersion, which already exist and are accessed through the Runtime Classes; and custom attributes, which you write yourself by extending the System.Attribute class.
samiksc
- Jan 16th, 2006
Attributes are part of metadata for a class.Attributes are used to specify assembly information like key file name, or for specifying security related information. You can create new attributes for your specific needs or ideas.
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What is the difference between "using System.Data;" and directly adding the reference from "Add References Dialog Box"?
When u compile a program using command line, u add the references using /r switch. When you compile a program using Visual Studio, it adds those references to our assembly, which are added using "Add Reference" dialog box. While "using" statement facilitates us to use classes without using their fully qualified names.For example: if u have added a reference to "System.Data.SqlClient"...
samiksc
- Jan 16th, 2006
The library which you want to use in your code must have a reference added using 'add reference'.The 'using ..' statement allows you to call methods in the namespace directly without using the fully qualified name like .
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ASP.NET Authentication Providers and IIS Security
ASP.NET implements authentication using authentication providers, which are code modules that verify credentials and implement other security functionality such as cookie generation. ASP.NET supports the following three authentication providers: Forms Authentication: Using this provider causes unauthenticated requests to be redirected to a specified HTML form using client side redirection....
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What is the difference between ASP and ASP.NET?
ASP ASP.NET ASP is interpreted. ASP.NET Compiled event base programming. Control events for text button can be handled at client javascript only. Since we have server controls events can handle at server side. More error handling. � ASP .NET has better language support, a large set of new controls and XML based components, and better user authentication....
samiksc
- Jan 16th, 2006
To summarize the points of differences are as follows:Code behind in asp.net allows separation of business logic from UI, which is not possible in asp.ASP.Net uses ADO.Net objects which are represente...
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What is Web.config?
In classic ASP all Web site related information was stored in the metadata of IIS. This had the disadvantage that remote Web developers couldn't easily make Web-site configuration changes. For example, if you want to add a custom 404 error page, a setting needs to be made through the IIS admin tool, and you're Web host will likely charge you a flat fee to do this for you.With ASP.NET, however,...
samiksc
- Jan 17th, 2006
Web.config is the asp.net configuration file which stores configuration settings of the folder in which it resides and its subfolders. If a subfolder contains web.config then it overrides the settings...
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