Article ID: 209595 - View products that this article applies to.
This article was previously published under Q209595
Moderate: Requires basic macro, coding, and interoperability skills.
This article applies to a Microsoft Access database (.mdb) and to a Microsoft Access project (.adp).
For a Microsoft Access 2002 version of this article, see 289670
This article shows you how to synchronize two combo boxes so that when you make a selection in the first combo box, the selection limits the choices in the second combo box.
NOTE: This article explains a technique demonstrated in the sample file, FrmSmp00.mdb. For information about how to obtain this sample file, please see the following article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/233324/EN-US/ )Microsoft Access 2000 Sample Forms Database Available in Download Center
The following example uses the sample database Northwind.mdb. The first combo box lists the available product categories, and the second combo box lists the available products for the category selected in the first combo box:
Microsoft provides programming examples for illustration only, without warranty either expressed or implied. This includes, but is not limited to, the implied warranties of merchantability or fitness for a particular purpose. This article assumes that you are familiar with the programming language that is being demonstrated and with the tools that are used to create and to debug procedures. Microsoft support engineers can help explain the functionality of a particular procedure, but they will not modify these examples to provide added functionality or construct procedures to meet your specific requirements.
NotesIn the above example, the second combo box is filled with the results of an SQL statement. This SQL statement finds all the products that have a CategoryID that matches the category selected in the first combo box.
Whenever a category is selected in the first combo box, the AfterUpdate property runs the event procedure, which sets the second combo box's RowSource property. This refreshes the list of available products in the second combo box. Without this procedure, the contents of the second combo box would not change.