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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.
Learning how to use Web services takes for granted a solid foundation in XML, mainly because the attendant technologies used in Web services are XML-based (such as SOAP and WDDI).
Becoming familiar with the basics of each of these languages goes a long way to ensuring well-rounded development capabilities. While one language may seem more daunting than another, we think
OOP is not language specific, but as with most things, it is easier to learn while using concrete examples. For this reason, you may want to first pick a language
While regular expressions are most commonly used for text manipulation, such as searching and search-and-replace, they can also be used to test for certain conditions in a text file or
Our QuickStarts and 10-Minute Solutions should help you get a painless jumpstart on your foray into JavaScript. There’s lots of short tutorials here that will teach you to accomplish very
You’ll find it far easier to familiarize yourself with Flash MX if you already know how to use Flash. If you don’t, don’t worry. There are plenty of resources available
Using design patterns again assumes a thorough knowledge of an OOP language as well as OOP principles. This is another situation where you might want to acquire a book or
reation of Web service applications is yet another complex task to add to the IT department’s list. Experience suggests it is not enough to approach Web services development armed with
his insider’s resource, written by the Oracle XML Development Team, explains how to take full advantage of the Oracle XML Developer’s Kit (XDKs) and maximize Oracle9i’s XML-enabled features. Create and
his book is designed for the professional developer or tecnhical lead who needs to write GDI+ code for either Windows Forms or for Web Forms applications. Upon completion of this
SP and XML: Integrating XML and Web Services in Your JSP Application will teach you how to implement XML and Web services within a JSP Web application or site. This
he world of Java technology is quickly changing from the world of the desktop computer and back-end servers to that of small consumer electronics and embedded devices. During the next
This component is intended to take valid Visual Basic source code an convert it to properly colorized HTML with procedure seperators. The input can either be a file of any
If you have defined a default document for a given IIS virtual directory, any link pointing to the directory will actually point to the default document for that directory. However,
Many developers mistakenly believe that any error inside a transaction will make the transaction fail and automatically rollback. However, this is true only for fatal errors, such as most errors
‘ this should be a module-level or global variable, so that’ Word is instantiated only onceDim MSWord As New Word.Application’ check the spelling of a word” returns True if the
You may retrieve a few important information about a connection to SQL Server by querying the server through appropriate @@ global variables. For example, the following routine takes an ADO
SQL Server’s views are updateable, but it is possible that when you insert a new record or update an existing record, the record added or modified doesn’t logical belog to
‘ Getting the HTML code of any page on the web’ NOTE: requires the Microsoft XML library’ Example:’ Text1.Text = GetHtmlPageSource(“http://www.vb2themax.com/Default.asp”)Function GetHtmlPageSource(ByVal URL As String) Dim objHTTP As New XMLHTTP
Private Declare Sub CopyMemory Lib “kernel32” Alias “RtlMoveMemory” (dest As _ Any, source As Any, ByVal Bytes As Long)’ Uncompress a block of data compressed with RLECompress” Returns TRUE if
At times you may need to swap the values of two columns of the same SQL Server table. For example, suppose that you realized that the fname column of the
The SQL language includes the SUM() aggregate function, that evaluates the sum of all the values in a given column, but it doesn’t include a PROD() function that evaluates the
Private Declare Function SystemParametersInfo Lib “user32” Alias _ “SystemParametersInfoA” (ByVal uAction As Long, ByVal uParam As Long, _ ByRef lpvParam As Any, ByVal fuWinIni As Long) As LongConst SPI_SETDESKWALLPAPER =
At times you may need to verify that the VB IDE is the current process. This is necessary, for example, when you are notified that the user has presses a
‘Check if the specified OLEDB Provider is installed and registered correctly”Example: check the Jet 4.0 OLEDB Provider’MsgBox “The specified OLEDB provider ” & ‘ IIf(CheckOLEDBProvider’ (“Microsoft.Jet.OLEDB.4.0”), “does”, “does not”) &
Printing is one of the things that you can’t do directly from withing ASP: to have a printout of your data from ASP you must instantiate a COM component –
When you use a COM or COM+ from a .NET application and then you set the object reference to Nothing (or let it go out of scope), the object isn’t
‘ get the IE installation path, or a null string if it isn’t installed” NOTE: requires the GetRegistryValue routineFunction InternetExplorerPath() As String Const HKEY_LOCAL_MACHINE = &H80000002 ‘ get the path
The Slider control has a capability that you might ignore: you can assign its SelectRange property to True to enter Select Range mode, during which the user can use the
One of the most effective optimization techniques consists of caching data inside Application or Session variables. However, you should pay attention to how you reference to the elements in those
