enableviewstate is a page-level session mechanism used to maintain the state of the controls between page requests. It uses the hidden variable __VIEWSTATE. enableviewstate is set to true for all
Suppose the user has to enter his name in a field. He forgets. Your Java code throws a NullPointerException. This is probably meaningless to the end user and encompasses a
The timeout option was supported in the previous versions of the JDK through the
Applications often present a way to allow users to select a number of values. These values are then assembled in an IN() clause that contains a list of values to
Ever need to use the same member function from a inheritance hierarchy as both virtual and non-virtual? This code shows you how to do it dynamically, using a template. Suppose
This tip will show you how to connect to SQL Server using ADODB Retrieving Records using Record Set and connecting it to Crystal Reports. Follow these steps before adding the
Text fields need special treatment in SQL. Here’s how to add two text fields: CREATE TABLE Foo (a int, b text)–Table Foo has b as text data type.INSERT INTO Foo
When a user visits a Web site for the first time, the site creates a unique ID, known as a Session ID. The Session ID is unique for that current
The Servlet API provides the class javax.servlet.ServletContext, which has methods that work with data stored in context. Any servlet can store Java objects in that context and other servlets can