Microsoft KB Archive/132071

= ACC: How to Use Code to Cycle Through the Controls on a Form =

Article ID: 132071

Article Last Modified on 1/19/2007

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APPLIES TO


 * Microsoft Access 2.0 Standard Edition
 * Microsoft Access 95 Standard Edition
 * Microsoft Access 97 Standard Edition

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This article was previously published under Q132071



SUMMARY
Advanced: Requires expert coding, interoperability, and multiuser skills.

This article demonstrates a sample user-defined procedure that you can use to create a toggle button on a form that enables you to cycle through the form's controls and set such properties as Locked and Enabled, without having to refer to each control by name.

This article assumes that you are familiar with Visual Basic for Applications and with creating Microsoft Access applications using the programming tools provided with Microsoft Access. For more information about Visual Basic for Applications, please refer to your version of the "Building Applications with Microsoft Access" manual.

NOTE: Visual Basic for Applications is called Access Basic in Microsoft Access version 2.0. For more information about Access Basic, please refer to the "Building Applications" manual.



MORE INFORMATION
To create the toggle button, follow these steps.

CAUTION: Following the steps in this example will modify the sample database Northwind.mdb (or NWIND.MDB in version 2.0). You may want to back up the Northwind.mdb file, or perform these steps on a copy of the Northwind.mdb database.

 Open the sample database Northwind.mdb (or NWIND.MDB in version 2.0). Open the Customers form in Design view. Add a command button to the form and set the control's properties as follows:

Name: MyButton

Caption: Lock All Textboxes

  Set the OnClick property of the command button to the following event procedure: Sub MyButton_Click Dim i As Integer Static status As Integer ' Use variable as True/False flag. ' Toggle the button's Caption property. If status = False Then MyButton.caption = "Unlock All Textboxes" Else MyButton.caption = "Lock All Textboxes" End If

' Cycle through the form's controls, ' testing for text and combo boxes, ' and set each control's Locked/Enabled properties. For i = 0 To Me.count - 1 If TypeOf Me(i) Is textbox Then Me(i).locked = status: Me(i).enabled = status ElseIf TypeOf Me(i) Is combobox Then Me(i).locked = status: Me(i).enabled = status End If        Next ' Toggle the flag. status = Not status End Sub  View the Customers form in Form view, and click the MyButton button once. Note that all the form's controls are disabled. Click the MyButton button again. Note that all the form's controls are re-enabled.

