i-Fi wireless LANs are exploding in the corporation. Corporations have adopted 11.6 million Wi-Fi devices in 2002, a 65 percent increase over 2001, according to market researcher In-Stat/MDR. Notebooks, PDAs,
he job ahead of creating new wireless applications and extending traditional desktop applications to mobile devices is somewhat ominous, but the good news, according to Gartner Research Analyst Theresa Lanowitz,
f 802.11 wireless LANs promise to untether corporate users from their wired network connections, then Voice over Wireless IP (VoWIP) promises to free them from their telephone handsets. VoWIP is
eaching critical mass for wireless in the enterprise has been a long time coming. Interest in and reliance on wireless technology has crept steadily ahead, but for several years now,
t’s tempting to think that we might be at or near the peak of the curve for wireless device proliferation, but that’s nowhere near the truth. Ken Dulaney, vice president
Editor’s Note: Martyn Mallick is a wireless solutions evangelist at iAnywhere Solutions, a vendor of mobile database solutions. Though the article is not impartial, we have sought it for publication
ireless networks are slowly evolving from yesterday’s 1G analog systems to tomorrow’s 3G high-speed, digital networks. Throughout the world, every country is at a different phase of building networks to
ven as wireless hardware diversifies (see sidebar “Inspecting the Ranks“), there’s a simultaneous convergence of sorts going on, but that convergence is happening inside devices, not outside. “The great thing
here’s no lack of innovation going on in the wireless area and the technology is maturing fast. But still, the vast majority of developers have avoided taking the wireless plunge.
The DataTable class has a method, Compute, that executes SQL-like functions on the rows locally stored in the DataTable. It supports functions such as COUNT, SUM, MIN, MAX, AVG and
‘ Backup the specified database.’ Note: requires Imports System.Data.SqlClient” Example:’ Dim connString As String = “server=(local); user id=sa; password=; ‘ Database=master;”‘ Try’ BackupDatabase(connString, “MyTestDB”, “D:MyTestDbBackup.bak”)’ Catch ex As Exception’ MessageBox.Show(ex.Message)’
‘ This function opens the OLEDB dialog to create an OLEDB connection string,’ and return the selection’ It requires the OLEDB Service Component 1.0 Type Library to workPublic Function CreateConnString(Optional
‘ Restore the specified database.’ Note: requires Imports System.Data.SqlClient” Example:’ Dim connString As String = “server=(local); user id=sa; password=; ‘ Database=master;”‘ Try’ RestoreDatabase(connString, “MyTestDB”, “D:MyTestDbBackup.bak”)’ Catch ex As Exception’ MessageBox.Show(ex.Message)’
‘ Create a SQL Server database with the specified name.’ If the second parameter is True and a DB with the same name is already ‘ present,’ it is dropped
The DataSet is a container of multiple DataTables, and it allows to create parent-child relationships between two tables, as shown below: ‘ create a relationship between the Categories and the
s an open source add-on for the Apache Jakarta Struts Framework (or Struts), StrutsCX has its roots in a pure XML- and XSLT-based, multi-language and multi-layout project. With StrutsCX you
wap() is one of those tricky algorithms that has several implementations, each of which offers its own advantages and disadvantages. In the following sections I will show why familiarity with
Introductionack in January of 2002, I was thumbing through the December issue of elementkjournal’s, “Inside Microsoft Access”, when I came across the MSDN article entitled, “Graphically Display Percentages on Forms
This class is designed to make working with the ListView control much easier, primarily when using it in Report view. There are various properties and methods which make for easy
he .NET framework makes it easy to start code execution on a new thread?improving user interface design by letting you execute lengthy procedures on one thread while leaving the UI
‘ Returns a TimeSpan for the interval of time the system has been up.’ EXAMPLE:’ Dim ts As TimeSpan = GetSystemUpTime()’ Console.WriteLine(String.Format(“The system’s up time is: {0} days, {1} ‘
‘ Returns the input string decoded from base64Private Function DecodeBase64(ByVal input As String) As String Dim strBytes() As Byte = System.Convert.FromBase64String(input) Return System.Text.Encoding.UTF8.GetString(strBytes)End Function Related Posts Knowing the Sign of
‘ Returns a hashtable with the key-value pairs extracted from the querystring ‘ of the specified url’ EXAMPLE:’ Dim ht As Hashtable = GetUrlParameters’ (“http://www.mysite.com?param1=123¶m2=¶m3=234”)’ ‘ print the key=value pairs
‘ Returns the input string encoded to base64Private Function EncodeBase64(ByVal input As String) As String Dim strBytes() As Byte = System.Text.Encoding.UTF8.GetBytes(input) Return System.Convert.ToBase64String(strBytes)End Function Related Posts Red Hat, Samsung Sign
‘ Downloads the file at the specified URI, and saves it where specifiedSub DownloadFile(ByVal uri As String, ByVal destFile As String, _ Optional ByVal username As String = Nothing, Optional
Usually, you set attributes in a session and the attributes are available through out the session. If you want to limit the scope of an attribute to just a request,
When you need to change the parameters or name of a class or method you developed use the javadoc @deprecated tag and leave the old code. This allows other to
The standard Java library contains a host of valuable methods. Many of these are hidden away, such as Beans.isInstanceOf.This method belongs to the java.beans.Beans class. However, it’s an object version
Say you need to change the behavior of your Java application depending on some parameters read from a properties or ini file (like batchMode, debugMode, etc.). You want to turn
If your application includes .properties files or images and you want to load them without hard-coding their location, store the files in the class path. Classes are stored in archive