IT tutorials

Microsoft Access 2010 : Learning the Basics of Creating and Running a Macro (part 2) - Submacros, Program Flow

10/10/2011 9:22:26 AM


Submacros are like subroutines in a programming module; they allow you to place more than one routine in a macro. This means you can create many macro routines without having to create several separate macros. You should include submacros that perform related functions within one particular macro. For example, you might build a macro that contains all the routines required for form handling and another that has all the routines needed for report handling.

Only two steps are needed to add submacros to a macro:

Click and drag a submacro from the Action Catalog onto the macro. A submacro appears as in Figure 7.

Figure 7. The submacro allows you to create subroutines within a macro.

Add macro actions to each submacro. Figure 8 shows a macro with three submacros: OpenCustomers, OpenOrders, and CloseForm. The OpenCustomers submacro opens the Customer List form, showing all customers. The OpenOrders submacro opens the OrderList form displaying only orders placed in March and April of 2006, and the CloseForm submacro displays a message to the user and then closes the active window.
Figure 8. A macro with three submacros.

Program Flow

At times, you want a macro action to execute only when a certain condition is true. Fortunately, Access allows you to specify the conditions under which a macro action executes:

Make sure that the Action Catalog is visible. (If it isn’t, click the Action Catalog tool in the Show/Hide group of the Macro Tools Design tab of the Ribbon.)

Click and drag the If statement to the macro. It will appear as in Figure 9.

Figure 9. You can designate the condition under which a macro action executes by selecting If from the Program Flow node of the Action Catalog.

The macro pictured in Figure 10 evaluates information entered on a form. The macro evaluates the date entered in the txtBirthDate text box on the frmPersonalInfo form. Here’s the expression entered in the first condition:

DateDiff("yyyy",[Forms]![frmPersonalInfo]![txtBirthDate],Date()) Between 25 And 49

Figure 10. An example of a macro containing conditions.

This expression uses the DateDiff function to determine the difference between the date entered in the txtBirthDate text box and the current date. If the difference between the two dates is between 25 and 49 years, a message box is displayed indicating that the person is over a quarter century old.

If the first condition isn’t satisfied, the macro continues evaluating each condition. The CheckBirthDate subroutine displays an age-specific message for each person 25 years of age and older. If the person is younger than 25, none of the conditions are met, and no message is displayed.

The CheckGender macro works a little bit differently (see Figure 11). It evaluates the value of the fraGender option group. One of the first two lines of the subroutine execute, depending on whether the first or second option button is selected. The third line of the subroutine executes regardless of the Option Group value because it is after the End If.

Figure 11. An example of a macro containing conditions.
- Microsoft Access 2010 : Learning the Basics of Creating and Running a Macro (part 1) - Working with Macro Actions & Working with Action Arguments
- Microsoft Access 2010 : Deleting Records
- Microsoft Visio 2010 : Sharing Diagrams by Using the Visio Viewer
- Microsoft Visio 2010 : Creating Visio Templates
- Microsoft Word 2010 : Creating an XML Document
- Microsoft Word 2010 : Customizing Word - Linking and Embedding Files
- Microsoft PowerPoint 2010 : Saving a Presentation as a Slide Show & Saving a Presentation as a Video
- Microsoft PowerPoint 2010 : Delivering a Show on Multiple Monitors
- Getting Started with Microsoft Excel 2010 : Arranging Windows
- Getting Started with Microsoft Excel 2010 : Moving Around the Workbook
Top 10 Video Game
-   F1 2015 [PS4/XOne/PC] Features Trailer
-   Act of Aggression [PC] Pre-Order Trailer
-   Sword Coast Legends [PC] Campaign Creation E3 2015 Trailer
-   Sword Coast Legends [PC] Campaign Creation E3 2015 Dungeon Run Trailer
-   Naruto Shippuden: Ultimate Ninja Storm 4 Trailer
-   Danganronpa Another Episode: Ultra Despair Girls Trailer 2
-   Project X Zone 2 Trailer
-   Poly Bridge Early Access Trailer
-   Rodea The Sky Soldier Trailer
-   CABAL 2 Launch Trailer
-   The Smurfs Trailer
-   Act of Aggression Pre-Order Trailer
-   Project X Zone 2 [3DS] Trailer
-   Minecraft: Story Mode Debut Trailer
-   Minecraft: Story Mode Reveal Trailer at Minecon 2015
Popular tags
Video Tutorail Microsoft Access Microsoft Excel Microsoft OneNote Microsoft PowerPoint Microsoft Project Microsoft Visio Microsoft Word Active Directory Biztalk Exchange Server Microsoft LynC Server Microsoft Dynamic Sharepoint Sql Server Windows Server 2008 Windows Server 2012 Windows 7 Windows 8 Adobe Indesign Adobe Flash Professional Dreamweaver Adobe Illustrator Adobe After Effects Adobe Photoshop Adobe Fireworks Adobe Flash Catalyst Corel Painter X CorelDRAW X5 CorelDraw 10 QuarkXPress 8 windows Phone 7 windows Phone 8 BlackBerry Android Ipad Iphone iOS