It’s not uncommon that ASP.NET applications have the need to use a personal .config file to write some runtime information. Since ASP.NET applications are not granted the permission to create

Writing a transactional COM+ component with VB.NET is as simple as applying the Transaction attribute to a class that inherits from System.EnterpriseServices.ServicedComponent: Imports System.EnterpriseServices< Transaction()> Public Class BankTransfer Inherits ServicedComponent

COM+ 1.5 (provided with Windows XP) has an interesting feature that is missing in COM+ 1.0: the ability to disable entire COM+ applications or just their individual components. You can

COM+ 1.5 has the ability to run any server application as a NT service, so that the application is up and running when the machine reboots, before any client makes

Having a VB6 component support a COM+ construction string requires that you implement the IObjectConstruct interface and its only method, Construct. The .NET ServicedComponent class implements this interface internally and

VB6 objects can’t be pooled under COM+, because they are apartment threaded. This restriction is void with VB.NET objects (and all .NET objects in general), because they are free-threaded. To

To write a function like swap(datatype1, datatype2) that will take any two datatypes in its parameter and swap their values, use function templates.For example, to implement a generic swap function:

In C/C++ header files, it’s often necessary to include the header files of sub classes or classes which are used. For example: #include “a.h”

In some situations, you may want a certain data member of two different objects to be identical. For example, suppose you are writing a graphics program that will render a

In common top-down C/C++ programming, the main() function is written first, and then the functions that it calls, and then in turn the functions those functions call. For relatively small

Tail recursion is a special way of writing recursion in C/C++, which minimizes the time and memory, this can be done just by storing the value of variable in some

‘ Return the array of IP addresses for the local host’ Note: Requires Imports System.Net’ Example:’ Dim ipa As IPAddress’ For Each ipa In GetLocalHostIpAddresses()’ Debug.WriteLine(ipa.ToString())’ NextFunction GetLocalHostIpAddresses() As IPAddress()

‘ Serialize an object to file in binary format’ It can handle types that the SOAP serialization can’t’ Requires:’ Imports System.IO’ Imports System.Runtime.Serialization.Formatters.BinaryPrivate Sub SaveBinaryData(ByVal path As String, ByVal o

‘ Return the OleDbType that represents the specified system type’ This is particularly useful when you have a DataTable and want to create a ‘ OleDbParameter for onw of its

‘ Deserialize an object from a file in binary format’ It can handle types that the SOAP serialization can’t’ Requires:’ Imports System.IO’ Imports System.Runtime.Serialization.Formatters.BinaryPrivate Function LoadBinaryData(ByVal path As String) As

‘ Return the HTML code for the specified Color’ Example: MessageBox.Show(Color2Html(Color.Red)) ==> #ff0000Function Color2Html(ByVal clr As Color) As String Return “#” & clr.ToArgb().ToString(“x”).Substring(2)End Function

Printing con be quite difficult in VB.NET (or any other .NET language), especially if you not only have to print plain text, but also tables, images, bulleted lists, text with

In software design, you should plan ahead the interface of a class hierarchy to make sure that all related concrete classes share a common interface. This can be achieved by