Question: What is the best (fastest) method to add records to a SQL 7 database using VB and ADO? I am currently using the recordset methods and it could take days to load my data. Note that the data is not coming from a source that Import can use. (I
Question: I have a numeric data field where zero is a valid value. When a number has been entered and then it is deleted, I want it to become blank or empty. Currently it defaults to zero. How can I get it to default to empty? Answer: There is a
Question: Using Visual Basic 6.0, I created a reference to a HTMLDocument object. I built a basic HTML page template and displayed it within a Web browser control on a form. I’ve been able to manipulate certain elements on the form by assigning IDs in certain tags. For example, I
Question: I can set the cursor to a variety of stock cursors (e.g., HAND_CURSOR)but would like to use my own images to extend the availablecursors. Is this possible? Answer: JDK 1.0.2 allowed you to change the cursor of a Frame to one of a setof predefined cursors. JDK 1.1 added
Question: How can I make a form that accesses and modifies SQL databases the same way I do with a .dbf database? Answer: You can accomplish what you need by creating what are called “remote” views. Remote views are cursors that go against ODBC datasource backends. Remote views require a
Question: In Java, how do I achieve the same functionality which is provided byclass destructors in C++? Is there a destructor method in Java? Answer: Java does not possess the concept of a destructor. In C++, you needto perform explicity memory management, invoking new to allocatememory and invoking delete to
Question: How can I change the values of the Cascading Style Sheets (CSS) clip property after the DIV is created? Answer: For the current releases of Navigator and IE (IE 4.x/5.x and Navigator 4.x), altering the CSS clip property of a DIV block once the page is rendered will require
Question: What are Abstract Classes? Please explain with an example. Answer: An abtract class has at least one pure virtual member function. A pure virtual member function is a non-implemented function that serves as a means of enforcing a common interface, or services, in derived classes. For example, an abstract
Question: Can you expalin the difference between the following statements in some examples and when do we need them: const char *ptr; //char *const ptr; // Answer: The following statement: const char *ptr; defines a pointer to a const char array. This means that the pointer itself can change its