I would like to find all the directories of a folder How should I achieve this?

Active Directory Service Interfaces (ADSI) is a programmatic interface for Microsoft Windows Active Directory. It enables your applications to interact with diverse directories on a network, using a single interface. Visual Studio .NET and the .NET Framework make it easy to add ADSI functionality with the DirectoryEntry and DirectorySearcher components.

Using ADSI, you can create applications that perform common administrative tasks, such as backing up databases, accessing printers, and administering user accounts. (More...)

Its name helps us to understand what is this in another way we can say that its automatically accessible in the application. App_Code Folder store classes, typed data set, text files, Reports etc. If we don't have this folder in web application we can add this folder. One of more significant feature of this is a single dll is created of this folder. If we have two different language classes in this folder then we have to create two folder one for one language. (More...)

VB.Net / C# provide polymorphism through the following mechanisms:
1. Inheritance - base class provides overridable methods which are re-implemented in derived classes.
2. Interface - different class can implement same interface, resulting in different implementations of interface methods.
3. Virtual methods - achieve runtime polymorphism. (More...)

sp_lock (More...)

Yes, it is possible.

select * from sysprocesses where open_tran > 0


This query will provide list of all the open transaction details. (More...)

Code extract :

TimeSpan DayDifference = Convert.ToDateTime("2009-1-7").Subtract(Convert.ToDateTime("2009-1-1"));


To find the difference of the days, here we have used Subtract method. The Subtract method does not take start date into consideration. Hence, to get the exact number of days for the date range we need to add one more day to the result.

Response.Write("Number of Days : " + DayDifference.Days+1); (More...)

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) _
As Boolean
If (b.matchingKey = CInt(ViewState("matchingKey "))) Then 'matching condition
Return True
Else
Return False
End If
End Function (More...)

No. It's not possible. Web application project does not allow users to add app_code folder where website project does. (More...)

string clientIPAddress = Request.UserHostAddress.ToString(); (More...)

string ComputerName = WindowsIdentity.GetCurrent().Name.ToString(); (More...)