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The Latest

DevX - Software Development Resource

Autoforwarding Public Appointments to a Group

Question: How do I forward appointments made to a public calendar to a set group of people? Answer: That’s fairly easy to do. First, open your folder list (View |

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Win2K and Outlook2K Exchange Connect via PPTP

Question: When I try to access Exchange Outlook, it produces the following message: “The Microsoft Exchange Address Book was unable to log on to the Microsoft Exchange Server computer. Contact

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Moving a User’s Folder

Question: We have a user on Exchange Server that no longer can access his account (“User does not have permission to log on to Microsoft Outlook”). I remember seeing an

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Database Limits

Question: I read recently that Exchange databases, like the Public and Private Information Stores, are highly susceptible to corruption when exceeding 4GB. Our Exchange 5.5 (Standard Edition) claims a 16GB

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Multiple Inserts Error

Question: What does the following Informix error message mean, and what can I do to prevent it: “could not position within a file via an index” It happens when I

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Validation of Textbox

Question: How do I validate a textbox, which doesn’t have any control source, so if it’s empty it should not lose the focus until the user enters some value? Answer:

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Disable Toolbar Control

Question: How do I make the toolbar not movable? Answer: To disable the toolbar control from the user, you need to alter a property on your application object. In the

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Hiding Rows in a Result Set

Question: If I retrieve a record from my SQL into my DataWindow, can I hide the fields that return as 0? Answer: You can use the filter command to remove

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Dynamic Global Variable Declaration

Question: Can I declare a global variable at runtime? Answer: Yes and no. You cannot add a global variable at runtime, but you can dynamically create an object and store

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No Soctcp Option

Question: I’m installing IDS 7.3.x on Sol 2.6 with Connect 2.01, and when I attempt to initialize through onmonitor, I do not get an option for soctcp. I’ve even tried

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Displaying Time in Different Time Zones

Question: I have seen an easy way to increase any given portion of NOW(), but it was months ago and I can’t find it again. What I want to accomplish

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Calling the CD-Rom

Question: I would like to know how to call the CD-Rom, or rather search for its drive letter. Answer: You can use the FileSystemObject (Microsoft Scripting Runtime in the references

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iHTML

Question: How can I retrieve the images that are stored in the SQL Server Database Table by using iHTML? Answer: I, as well as many others, generally discourage storing images

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All-Encompassing Try

Question: I was told that in order to make my program easier to read, I shoulduse try to cover all of my program, then catch every exception at the endof

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The binary_search Algorithm

STL’s binary_search() algorithm traverses a sequence and returns a Boolean value indicating whether the sought-after element exists in that sequence. binary_search() is declared in the header as follows: bool binary_search

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Useful STL Terminology

Here are some key terms that you may find useful for reading Standard Template Library (STL) literature and documentation. ContainerA container is an object that stores objects as its elements.

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Declarations With Implicit int Aren’t Permitted

Does your compiler accept the following declarations? volatile x; const y = 0; In pre-standard C++, the default type in such incomplete declarations was int. Thus, the first declaration would

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Blocking Object Copying and Assignment

To block copying and assignment of an object, explicitly declare the assignment operator and copy constructor private. Don’t define them, (there’s no point in defining them because they can’t be

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Accessing SQL and Visual Basic

Question: I am developing a database program using Access and Visual Basic. I want to display data in a form where the data comes from two tables. For example, the

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Ordering Query Output By Two Fields

Question: I want to order the output of my query by two fields. Is this possible? That is, if two values are the same, I want the output ordered by

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Datatype Decision

Question: I have a field that stores lots of data (up to 8,000 characters). I thought that I could maybe save disk space if I stored this data as varbinary

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Autonumbering in SQL

Question: I am having to reformat data for addition to a database. My current struggle involves an identification field for certain records. In the new database it needs to be

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FoxPro 2.5

Question: Is there a 2.5 patch for running on fast computers? Answer: The only patch that I am aware of is the 2.6 patch.

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Indexing Remote Views

Question: We have to connect VFP to SQL Server, and we have a lot of non-structural index files for tables. We’ve created remote views for the tables and need to

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List Structure

Question: How do I control the output format for the list structure command so that it always fits on a page (portrait or landscape)? Is there another way to get

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Location of Wizards

Question: Every time I try to use a wizard, I get the following error message: “Cannot find the Wizard Program.” The wizards are located in the same folder that I

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Adding Controls to Pageframes

Question: How do I place a text box on a pageframe (or anything for that matter)? Answer: Right click the pageframe in the form designer or class designer and choose

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Setting dbf File Attributes

Question: When using the following commands to modify a dbf file, I find the file is not accessible for modification: USE MODIFY STRUCTURE How do I modify the file structure?