Question: How do I programmatically change the database property of Forms so that I can put my data files anywhere? Answer: You can set the database properties of cursors in
Question: Is SimpleDateFormat threadsafe? I am trying totrack down a bug where a date formatted “yyyy-MM-dd” actually came outas 2000-06-0001. I have four threads accessing the format method ofmy date
Question: Can I move 600+ users from a standalone server to a PDC with all rights and information intact, without having to recreate the users on the PDC? Answer: Well,
Question: Is there anything similar to the “Microsoft grid control” in Visual Basic that just displays a grid and does not bind data from a table? Answer: You could use
Question: With an application compiled into an EXE, why when I select 1 topic, enter into it, and exit do I get booted out of FoxPro to the main Windows
Question: Is it possible to return an Enumeration of an array? Answer: There is no standard class for creating an Enumeration of an array.More often than not, when you use
Sometimes in a multi-tier system, designers tend to follow rigid object-oriented design rules to perform heavy data-centric manipulations in the middle tier. Remember, a thin line separates the operations that
The standard PictureBox control doesn’t support the Animated GIF graphic format. However, you can display these images by using a WebBrowser control: WebBrowser1.Navigate “c:ImagesAnimated.Gif” The only problem of this technique
Question: I have the following code in an XML file: Fredonia AFB Russia Luka Russia 140N4506 64E3507 Sevastopl Bosie 140N4506 64E3507 Ukraine How can I set up an XSL sheet
Question: How can I change the color of a link when the mouse is over the link? And how can I remove the line that underlines the links? I am
Question: I want to make a simple frame for my Web site, but I don’t know how. I’ve looked through your tutorial but I still don’t fully understand. Can you
This addin greatly simplifies adding error handling to VB programs. Simply register the DLL using REGSVR32 and the addin will be added into the Visual Basic tools menu. Keep the
ascally RecursionExtensible Stylesheet Language Transformations, or XSLT, allows you to transform XML documents into other XML documents using XSL. Using XSLT can be very trying, but it is, in fact,
ave you visited sites that allow you to “E-mail this page to your friend”? Have you tried it and sent the page to yourself to see what it looks like?
nce you get past the point of creating a solid database design and ensuring the integrity of your database, inevitably you need to know about the objects in your database.
The ListView control doesn’t expose any property that lets you disable the dragging of its elements. To do so, you must trap the WM_NOTIFY message that the ListView control sends
The ListView control exposes the AfterLabelEdit event to let the programmer validate the text entered in a ListItem, but there is no way to trap keys as they are typed
You can’t directly bind a group of OptionButton controls to a Data control, RDO Data control or ADO Data control. However, you can work around this limitation by adding an
There is an easy, but under-utilized, technique for loading many nodes in a TreeView control (or ListItems in a ListView control) that is faster than the standard technique. Consider this
Here’s a simple way to highlight the current word in a TextBox control (i.e. the word where the caret is): Text1.SetFocusSendKeys “^{LEFT}+^{RIGHT}” Similarly, you can highlight the current line in
The ComboBox control contains an invisible Edit window, which is used for the edit area. In most cases you don’t need to access this inner control directly, but occasionally a
If you use a DataList control linked to an ADO Data Control and if you want to add a record, you have to create a command button with this code:
The ListView control doesn’t expose any property that lets you limit the amount of text users can type when editing an item’s label. However, you can do the trick with
Microsoft “forgot” to provide the ListView control with the GetVisibleCount property, as it did, for example, with the TreeView control. However, getting this information is as easy as sending a
You don’t need to use icons or bitmap to create buttons with arrows on them. In fact, you just have to select the “Windings” font, set a suitable font size
The java.util.TimeZone class can be used to convertdates and times from local values (default) to othertime zones. The following example shows how: import java.util.*;public class TimeZoneTest {public static void main(java.lang.String[]
Most Java programmers close a connection with database directly without closing the ResultSet. This is okay with standalone Java programs, where the Java compiler automatically closes the Resultset for you,
You can use pow() method which is part of the Math classin java.lang for calculating the exponentiation. Java doesnot provide any direct operator (like ‘^’ in VB) for calculating the
You should avoid usage of increment and decrement operators inside other expressions. Increment operator (++) adds 1 to the current valueof the variable and decrement operator (–) subtracts 1 from
Question: How do I convert a class into an abstract base class without using a pure virtual member function in it? Answer: If your goal is to disable instantiation of