Unlike ordinary classes and functions, which you declare in a header file and define in a separate .cpp file, a template

The standard textbox has a MaxChars property that lets you limit the number of characters a user can type into it. The drop-down combo does not, but you can emulate

When you design a database in Access 2000, the most intuitive way or your users to look at the data they want might be to let them use xtended multiselect

Using the JavaScript program, you can let the user view a Web page only for certain time. After that specific period, without the user interaction the page will dispel another

Visio will search the connections between all of the attributes branching off from the file in which you are interested. However, Visio cannot read inside a comment tag. So create

To use this tip, the HTML form element which is required for Null Check should assign the title property some value concatenated with “C.” For example: On the submit tag,

Avoid storing the address of a local object created in an inner scope in a pointer in an outer scope. class Hello { public: void method();};void process(Hello& x);void myfunc(){ {

Here are three alternatives to scheduling a task run repeatedly without using threads:1.Using loop construct: boolean temp=true; While (temp) { for (int i = 0; i < 999999999; i++) {

There’s no direct command to read a script file and execute it. But isql.exe and osql.exe come in handy when you have to execute a script file from within T-SQL.

Almost all Java applications require looping at some point or other. Even the slightest improvement in looping time can make a huge performance difference. Because the size of an array

When * is used in a select query, it returns all the columns in a table. This approach can be used in a development or testing environment, but it should

Create one class similar to the following, add codes within the static block, and run the application. For example: public class A{ static void displayMe() { System.out.println(“I’m inside display Me

Say you want to have several classes-modifiers, and you want to execute a certain virtual function for each of them. The ideal solution is to create an abstract class with

Dynamic SQL queries allow users to create statements on the fly using parameters or variables. The EXECUTE (EXEC) statement is used to implement dynamic SQL solutions in the stored procedure.

If you want to force a class to be abstract (meaning you can’t actually create an instance of it), but don’t have any pure virtual functions to do it, you

All Web Forms controls, and the page itself, expose the EnableViewState property, a boolean that says whether the current value of the control must be saved in the __VIEWSTATE hidden

A few Web Forms control expose the AutoPostBack property, which makes it possible to start a postback when the user clicks on these controls or changes their contents. By default

In classic ASP, the only way to preserve information – for example, the value of a variable- – between consecutive client requests is by means of Session variables, cookies, or

During a page postback, the page is redrawn by default and users see a short but annoying flickering. Worse, the scroll position isn’t preserved during postbacks (the page scrolls to

In any decent sized application, one of the most common activities is string manipulation at one level or another. One of the most common problems with string manipulation is the

swap(int & a, int & b){a ^= b;b ^= a;a ^= b;}

Some of the most irritating and difficult-to-trace bugs are the ones relating to uninitialized or inaccessible memory locations. This problem becomes especially severe when dealing with parameters that are pointers.

Sometimes it’s useful to get information from a text property file, especially when you want to change values inside classes without recompiling them every time. A simple (and fast) way

You can do this without using the classpath directive at the command line. How? Easy! Just write a launcher! Here’s the code: /* Allow you to type “java QuickRunner” instead

Send an email without using JavaMail API, by using the Java Core packages(java.net.*;java.io.*) to pass three parameters. The first parameter is the SMTP mail server, the second parameter is the

Start the JVM with the “-D” switch to pass properties to the application and read them with the System.getProperty() method. SET myvar = Hello world Set myothervar = nothing java

Who doesn

Many programmers are familiar with declaring an object variable in class modules and other places to capture events from a form and handle them in a generic way: Private WithEvents

Sometimes you might need to determine the full path name to a Windows executable file associated with a given file extension. The usual recourse is to use the FindExecutable API.