Microsoft KB Archive/219776

= ACC2000: How to Control How the User Closes a Form =

Article ID: 219776

Article Last Modified on 6/23/2005

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APPLIES TO


 * Microsoft Access 2000 Standard Edition

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This article was previously published under Q219776



Moderate: Requires basic macro, coding, and interoperability skills.

This article applies to a Microsoft Access database (.mdb) and to a Microsoft Access project (.adp).



SUMMARY
A Microsoft Access form has a CloseButton property, which you can use to prevent a user from closing the form with either the Close Button icon or by clicking Close on the File menu. However, the user can still close the form by pressing ALT+F4. This article shows you how to prevent the user from closing a form by pressing ALT+F4.



MORE INFORMATION
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. CAUTION: If you follow the steps in this example, you modify the sample database Northwind.mdb. You may want to back up the Northwind.mdb file and follow these steps on a copy of the database.

This example prevents the user from using ALT+F4 to close a form:  Open the sample Microsoft Access database file Northwind.mdb or the sample Microsoft Access Project file NorthwindCS.adp. Open the Customers form in Design view.  Change the following property:   Form: Customers -  CloseButton: No                     On the View menu, click Code.  Type the following lines in the Declarations section: Option Explicit Public blnClose As Boolean   Add the following line of code to the Load event of the form: blnClose = False </li>  Add the following control to the form: <pre class="fixed_text">  Command Button ---  Name: cmdCloseForm Caption: &Close </li>  Add the following line of code to the Click event of the command button, cmdCloseForm: blnClose = True DoCmd.Close acForm, "Customers", acSaveNo </li>  Add the following code to the UnLoad event of the form: Dim strMessage As String Dim intStyle As Integer Dim strTitle As String

strMessage = "You are attempting to close this form incorrectly." & _     vbCrLf & "Please try again using the designated Close Button" intStyle = vbOKOnly + vbCritical strTitle = "Closing Customers?"

If blnClose = False Then MsgBox prompt:=strMessage, buttons:=intStyle, Title:=strTitle Cancel = True End If

</li> Open the Customers form in Form view.

Note that the Close Button icon button remains visible but appears dimmed (grayed). Clicking Close on the File menu causes the custom message to be displayed. This message is also displayed if the user presses ALT+F4.</li></ol>

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