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keypad on form for entering data - not working with subform

keypad on form for entering data - not working with subform

(OP)
I am trying to create a number keypad on a form that the end user can use to enter data. The end user will be using a tablet while walking in a department and entering data. The below vb code works but does not work when the end user needs to enter data into a sub form on a tab control. A text box on a tab control works, but not the subform. The error msg is RunTime error 2465: MS office cannot find the field 'Text1' referred to in your expression. It works in the form and tab control just not in the subform. What am I missing?

Private Function TypeAlphaNum(strKey As String) As String
Screen.PreviousControl.SetFocus
Me.Controls(Screen.ActiveControl.Name).SelStart = Nz(Len(Me.Controls(Screen.ActiveControl.Name)), 0)
Me.Controls(Screen.ActiveControl.Name).SelLength = 0
Me.Controls(Screen.ActiveControl.Name).Value = Me.Controls(Screen.ActiveControl.Name).Value & strKey
End Function

'this code is used in the number 1 command button
Private Sub cmd1_Click()
TypeAlphaNum "1"
End Sub

RE: keypad on form for entering data - not working with subform

Subforms need to be referred to by name.
Forms![MainFormName]![SubFormName].Form![TextBoxName]
TextBoxName could also be a function but then it would be .[TextBoxName]

I hope that helps.

RE: keypad on form for entering data - not working with subform

(OP)
Thank you for your reply but I'm looking for a generic way to do this since I'm unable to hard code every single control...this is why I'm using .activecontrol

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