MS Access As A Dev Tool
Access continues to be a highly efficient tool for business database development.
The Best Microsoft Access Database Solutions owner, consultant, and principal programmer is Alison Balter - a recognized expert Microsoft Access consultant. Alison is the author of 15 Microsoft Access training books and videos. She is a frequent guest speaker at MS Access conferences and has developed hundreds of applications for businesses of all types.
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Access continues to be a highly efficient tool for business database development.
How to create a Microsoft Access application with some unique tips and tricks.
Your Access developer near me has some great info for you about using Access efficiently.
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The following material is shared here to indicate our commitment to professional Microsoft Access programmer services in the Jacksonville FL 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.
In addition to the properties already discussed, two other properties are worth mentioning. They are the DateCreated and DateModified properties. They are available for all Access objects.
Most applications use objects throughout. The example that follows applies the technique you learned to enable and disable command buttons in response to the user making changes to the data on the frmClients form, located in Chap9Ex.mdb on the sample code CD-ROM.
When a user is in the middle of modifying form data, there's really no need for her to use other parts of the application. It makes sense to disable other features until the user has opted to save the changes to the Client data. The clean form begins with the View Projects command button enabled and the Save and Cancel buttons disabled. The KeyPreview property of the form is set to Yes so that the form previews all keystrokes before the individual controls process them. In the example, the KeyDown event of the form is used to respond to the user "dirtying" the form. It executes whenever the user types ANSI characters while the form has the focus.
The KeyDown event automatically receives the code of the key that was pressed, whether Shift, Alt, or Ctrl was pressed along with that key. The event routine checks to determine whether the Save button is already enabled. If it is, there's no reason to continue; the Enabled property of the command buttons has already been flipped. If Save isn't already enabled, the ImportantKey function (discussed in detail later) is called. It receives the key that was pressed, despite whether Shift, Alt, or Ctrl was used.
The ImportantKey evaluates the key that was pressed to determine whether a keystroke is modifying the data. If it is, the function returns True. Otherwise, it returns False. If ImportantKey returns True, the FlipEnabled routine is executed. FlipEnabled flips the enabled property of the command buttons on the form so that Save and Cancel are enabled, and View Projects is disabled.
If the value returned from the ImportantKey function is True, the enabled property cboSelectClient combo is set to False. If you fail to prevent movement to other records while the form is dirty, Access automatically saves the user's changes when the user navigates to another record. Furthermore, the enabled state of the command buttons still reflects a dirty state of the form.
This material originally appeared in Alison Balter's book Mastering Microsoft Office Access 2007 Development. Reprinted here by author's permission.
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