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Since 1998, DevX has helped people start businesses, build websites, and provide enterprise technology to people globally. Interviewing the likes of Microsoft’s co-founder, Steve Ballmer, the publication brings comprehensive, reliable, and accessible insights to the Internet.
This task is quite common task. However, explicit insertion of values can be unacceptable in many cases?like if you need to insert a lot of values. I’ve found that it’s
When you construct an object using new, you have no control over where it gets created in the heap. What if you want the object to be placed at a
For some programs, it is helpful to create a listener to keep track of all the events being dispatched by the UI. This can be very useful in debugging programs.
ew people know this, but when PHP as we know it today was being molded, back in the summer of 1997, there were no plans for it to have any
Indexes are critical to smooth data retrieval and manipulation in SQL Server. They are the way foreign keys maintain relationships among themselves and the way DB pros enforce order on
Java swing provides a Timer class to cause an action at a pre-defined rate. For instance, you could have a label that blinks at a pre-defined rate. The class has
To do this, you need the javax.mail package. It’s a part of J2EE and available from java.sun.com.Sending a simple e-mail is pretty easy: import java.util.Properties;import javax.mail.*;import javax.mail.internet.*;public class Mail {static
Use Flash’s robust printing support to add print functionality to your Flash movies or Web applications. By using off-screen movie clips and ActionScripts movie clip copying commands, you can create
Whether it is a word-processing application that saves documents to a disk, a utility that remembers its configuration for subsequent use, or a game that allows players to assume world
Implementing Object Pooling with .NET Remoting Part I As you probably know, Object Pooling is a powerful feature available when hosting .NET or COM components in a COM+ application. I
‘ Create an XmlElement object with inner text and make it a child of another ‘ XmlNode.’ Note: requires Imports System.XmlFunction CreateAppendElement(ByVal parentNode As XmlNode, ByVal name As String, _
‘ Deserialize an object from a file in SOAP format.Function LoadSoapData(ByVal path As String) As Object ‘ Open a file stream for input. Dim fs As FileStream = New FileStream(path,
‘ A reusable function that does object cloning’ by serializing it to a memory streamFunction CloneObject(ByVal obj As Object) As Object ‘ Create a memory stream and a formatter. Dim
‘ Display a XML file in a TreeView’ Note: requires Imports System.Xml’ Example: DisplayXmlFile(“employees.xml”, TreeView1)Sub DisplayXmlFile(ByVal filename As String, ByVal tvw As TreeView) Dim xmldoc As New XmlDocument() xmldoc.Load(filename) ‘
‘ Serialize an object to file in SOAP format.Sub SaveSoapData(ByVal path As String, ByVal o As Object) ‘ Open a file stream for output. Dim fs As FileStream = New
‘ A module for evaluating expressions, with support for’ parenthesis and many math functions’ Example:’ Dim expr As String = “(SQR(9)^3)+COS(0)*3+ABS(-10)”‘ txtResult.Text = Evaluate(expr).ToString ‘ ==> 27+3+10 ==> 40 Imports
The Component Services MMC gives you an easy way to export and import COM+ applications. However, if you want to export the entire COM+ catalog to one or more systems
n my last article, I demonstrated how to build an Explorer-like tree control using JavaScript. This month’s installment focuses on converting the tree control to an object-oriented structure. Such a
November 8, 2002?Microsoft chose the venue of the OOPSLA conference, being held this week in Seattle, to reiterate what company officials called “Microsoft’s commitment to computer science” and to announce
More than ever before, corporations are clamoring to evaluate their security architectures and identify any gaps. The Java platform, and specifically the J2EE platform, provides some of the most robust
hen I had to write my first NT service, I went to MSDN and looked for samples. There, I found “Creating a Simple Win32 Service in C++, an article by
With the release of the SQLXML Managed Classes, which Microsoft shipped with SQLXML in March of this year, developers now can access SQLXML technology (XML views, templates, XPath, XQuery) from
It is more important to understand the problem than the solution.?Albert Einstein Decades ago, engineers who wanted to build more resilient networks coined the term “self-healing system” to describe computer
recently read an advertisement for some Windows security software that boasted “incredible security using 160-bit RC4.” Superlatives aside, take claims like this with a grain of salt. Based on the
s a platform, Java defines the services needed to connect binary components at runtime safely and reliably. To truly take advantage of all that Java has to offer, you must
ong before Windows became the de facto operating system on the desktop?even before IBM released the first Personal Computer with 16KB of memory, software engineers had realized the need for
mong the controls installed with VB6 is the WebBrowser control, which is nothing less than a complete browser disguised as an ActiveX control (technically, it’s a wrapper around Internet Explorer
Private Declare Function ShellExecute Lib “shell32.dll” Alias “ShellExecuteA” _ (ByVal hwnd As Long, ByVal lpOperation As String, ByVal lpFile As String, _ ByVal lpParameters As String, ByVal lpDirectory As String,
his book, Visual Basic .NET Class Design Handbook: Coding Effective Classes , teaches you all about; the role of types in .NET; the different kinds of types that can be
HuntERR is an error-handling solution for VB6 that makes adding error handlers a one-click task. It includes VB source modules, demo application with source, VB6 Add-In with source, SQL scripts,
