Handling Null Session and Request Variables
March 4, 2009
In ASP.NET, if you try to use a session or request variable before it has been set, you’ll get an error. The following functions prevent this by checking for nothing
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In ASP.NET, if you try to use a session or request variable before it has been set, you’ll get an error. The following functions prevent this by checking for nothing
t the JAOO conference in Aarhus, Denmark this year, domain specific languages came up in virtually every conversation; every keynote mentioned them, a lot of sessions discussed them (including a
This code shows how to create a new event using AWTEventMulticaster. import java.awt.*;import java .awt.event.*;class Buton extends Component{ private Image button_pressed,button_released; private boolean press=false; ActionListener actionListener; public Buton(){ button_pressed=Toolkit.getDefaultToolkit().getImage(“?”); //pressed
This tip shows how to obtain the local absolute path of a class file containing the specified class name, as prescribed by the current classpath. Call this method as you
he inherent advantages to introducing queues into an application architecture are well understood. Queues, when used properly, can: Increase application robustness, as clients can send messages even when services are