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What is code verification?
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Posted Date :
October 16, 2010
Code verification ensure that proper code execution and type safety while the code runs. It does not allow to perform illegal operation such as invalid memory location.
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What is code verification?
What is the managed and unmanaged code in .net?
The .NET Framework provides a run-time environment called the Common Language Runtime, which manages the execution of code and provides services that make the development process easier. Compilers and tools expose the runtime's functionality and enable you to write code that benefits from this managed execution environment. Code that you develop with a language compiler that targets the runtime is called managed code; it benefits from features such as cross-language integration, cross-language exception handling, enhanced security, versioning and deployment support, a simplified model for component interaction, and debugging and profiling services.
Can code inside multiple catch block be executed?
No, Code can not execute in mutiple catch block
What is managed code and managed data?
Managed code is code that is written to target the services of the Common Language Runtime (see What is the Common Language Runtime?). In order to target these services, the code must provide a minimum level of information (metadata) to the runtime. All C#, Visual Basic.NET, and _JScript.NET code is managed by default. Visual Studio.NET C++ code is not managed by default, but the compiler can produce managed code by specifying a command-line switch (/CLR).
Closely related to managed code is managed data-data that is allocated and de-allocated by the Common Language Runtime's garbage collector. C#, Visual Basic, and _JScript.NET data is managed by default. C# data can, however, be marked as unmanaged through the use of special keywords. Visual Studio.NET C++ data is unmanaged by default (even when using the /CLR switch), but when using Managed Extensions for C++, a class can be marked as managed by using the __gc keyword. As the name suggests, this means that the memory for instances of the class is managed by the garbage collector. In addition, the class becomes a full participating member of the .NET Framework community, with the benefits and restrictions that brings. An example of a benefit is proper interoperability with classes written in other languages (for example, a managed C++ class can inherit from a Visual Basic class). An example of a restriction is that a managed class can only inherit from one base class.
Difference between imperative and interrogative code.
There are imperative and interrogative functions and I think they are talking about that. Imperative functions are the one which return a
value while the interrogative functions do not return a value.
What is a Managed Code?
Managed code runs inside the environment of CLR i.e. .NET runtime. In short all IL are managed code. But if you are using some third party software example VB6 or VC++ component they are unmanaged code as .NET runtime (CLR) does not have control over the source code execution of the language.
What is CODE Access security?
CAS is part of .NET security model that determines whether or not a piece of code is allowed to run and what resources it can use while running. Example CAS will allow an application to read but not to write and delete a file or a resource from a folder.
What is CODE Access security?
Code Access Security (CAS), in the Microsoft .NET framework, is Microsoft's solution to prevent untrusted code from performing privileged actions.
It performs following function
1. Defines permissions and permission sets that represent the right to access various system resources.
2. Enables administrators to configure security policy by associating sets of permissions with groups of code (code groups).
3. Enables code to request the permissions it requires in order to run, as well as the permissions that would be useful to have, and specifies which permissions the code must never have.
4. Grants permissions to each assembly that is loaded, based on the permissions requested by the code and on the operations permitted by security policy.
5. Enables code to demand that its callers have specific permissions.
6. Enables code to demand that its callers possess a digital signature, thus allowing only callers from a particular organization or site to call the protected code.
7. Enforces restrictions on code at run time by comparing the granted permissions of every caller on the call stack to the permissions that callers must have.
What Will be the output of the following Code?
int i = 1;
int j = 1;
i = i++;
j = ++j;
Response.Write(i.ToString() + ":" + j.ToString());
(4) None of the above
What type of code (server or client) is found in a Code-Behind class?
Which Toold allwos you to manage and configure assemblies in the Global Assembly Cache, adjust code access security policy, and adjust remoting services
.NET Framework Configuration Tool
Which is the code for conversion of varchar to numeric?
Convert(numeric(10,0),[ varchar fieldname])
How to find data with generics list in VB.NET (Write code).
In the code example below, the function "FindData" will return list("sublist") of the objects having matchingKey same as viewstate value.
Dim sublist As List(Of MyClass)
sublist = allClient.FindAll(AddressOf FindData) 'sublist will contain objects matching specified matching condition
Function FindData(ByVal b As MyClass) _
If (b.matchingKey = CInt(ViewState("matchingKey "))) Then 'matching condition
Why is it not a good idea to insert code into InitializeComponent method when working with Visual Studio?
The designer will likely throw it away; most of the code inside InitializeComponent is auto-generated.
If I return out of a try/finally in C#, does the code in the finally-clause run?
Yes. The code in the finally always runs.
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