Access Database 2016表单标签页无法激活问题咨询

Let’s walk through the most likely issues and fixes for your unresponsive tab control:

1. Fix the Syntax Error in Form_Open Event #

First, there’s a critical typo in your Form_Open code that’s breaking error handling and causing unexpected behavior:

On ERRO GoTo err_Form_Open  ' Typo: "ERRO" should be "Error"

Correct it to:

On Error GoTo err_Form_Open

This typo prevented your error handler from triggering, so any issues during form load would fail silently (or throw unhandled errors) instead of showing you a meaningful message.

2. Move Focus Logic to Form_Load Event #

Setting focus to a control in Form_Open can interfere with the initialization of child controls like tab pages. The Form_Load event fires after the entire form (including all tab pages and their controls) is fully loaded, making it the safer place to set focus:

Private Sub Form_Load()
    On Error GoTo err_Form_Load
    Age_Ins.SetFocus
    ' Replace hiding with closing to avoid record locks
    DoCmd.Close acForm, "frmMaster_search"
exit_Form_Load:
    Exit Sub
err_Form_Load:
    MsgBox Err.Description
    Resume exit_Form_Load
End Sub

Also, instead of hiding frmMaster_search, close it—bound forms left hidden can hold locks on records or resources that might block editing in your Insurance_Master form.

3. Verify Tab Control and Child Control Properties #

Check if the tab control or its contained controls are disabled/locked:

• Open Insurance_Master in Design View, select the tab control, and open the Property Sheet (F4):
  • Ensure Enabled is set to Yes
  • Ensure Locked is set to No
• Repeat this check for every control inside the tab pages—if a parent control is disabled, all child controls inherit that non-interactive state.

4. Ensure the Form Allows Edits #

Confirm your Insurance_Master form is configured for data entry:

• In Design View, go to the Form tab in the Property Sheet:
  • Set Allow Edits to Yes
  • Set Allow Additions to Yes (if you need to create new records)
  • Set Data Entry to No (unless you only want to create new records, not edit existing ones)
    You can also explicitly enforce edit mode when opening the form:

DoCmd.OpenForm Master, acNormal, , , acFormEdit  ' Opens form in edit mode

5. Rule Out Record Locking Conflicts #

If frmMaster_search uses the same record source as Insurance_Master, hiding it instead of closing can leave a lock on the current record. Closing it ensures no lingering locks that might block edits:

DoCmd.Close acForm, "frmMaster_search"

Replace your existing Forms!frmMaster_search.Visible = False line with this.

Start with fixing the typo and moving focus logic to Form_Load—these are the most probable fixes. If the tab control still doesn’t respond, check the control properties and record locking next.

内容的提问来源于stack exchange，提问作者N. Lynah