Microsoft Access Database Programmer Bakersfield CA

Microsoft Access Programmer Information

Call MS Access Solutions at (323) 285-0939 For Complimentary Consultation

The following material is shared here to indicate our commitment to professional Microsoft Access programmer services in the Bakersfield CA area. Access programming for business is highly complex and requires dedication and skill to create a high quality database application. We wrote the book on Microsoft Access prgramming, so you know you will get the best possible Access database solution for your business.

The Immediate If (IIf)

An Immediate If (IIf) is a variation of an If statement. It's actually a built-in function that returns one of two values, depending on whether the condition being tested is true or false.

CAUTION

Both the True and False portions of the IIf are evaluated, so if there's a problem with either part of the expression (for example, a divide-by-zero condition), an error occurs.

The IIf function is rather slow. It is best to avoid using it whenever possible by replacing it with a properly formed If...Then...Else block.

The IIf function is most often used in a calculated control on a form or report, or to create a new field in a query. Probably the most common example is an IIf expression that determines whether the value of a control is IsNull. If the value is IsNull, you can have the expression return a zero or an empty string; otherwise, you can have the expression return the value in the control.

NOTE

Although the IIf function can be used to handle Nulls, the built-in NZ function is a more efficient solution to this problem and avoids the inherent pitfalls of IIf.

The Conditional If: Conditional Compilation

Conditional compilation enables you to selectively execute blocks of code. This feature is useful in several situations:

1. When you want certain blocks of code to execute in the demo version of your product and other blocks to execute in your product's retail version

2. When you're distributing your application in different countries and want certain blocks of code to apply to some countries but not to others

3. When you want certain blocks of code to execute only during the testing of your application

NOTE

The difference between conditional compilation and standard If..Then..Else logic is that conditional compilation is performed at compile time. Only the appropriate line(s) of code is placed in the compiled code. This improves performance if similar logic is needed throughout the application.

Access Programmer for Bakersfield CA Attribution

This material originally appeared in Alison Balter's book Mastering Microsoft Office Access 2007 Development. Reprinted here by author's permission.

When you need a Microsoft Access programmer for your Bakersfield CA business, call MS Access Solutions at (323) 285-0939. We have over 25 years experience in Microsoft Access programmer solutions. We create Access database applications for all sectors, consisting of hospitals, government agencies, the U.S. military, universities, agriculture, workers services, and insurance provider. We can take care of the most advanced as well as complicated Access and SQL Server database programming for your business as well as smaller projects, like fixing damaged Access database forms, MS Access reports, Access macros, and VBA code.

More Access programmer cities we serve: Access Database Programmer Baltimore MD.