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warning message if field is left blank

P: 2
I have a questions database. When user is filling out the form, the following fields are required: Questions, Author, Type of Question and Answer selected. Answer is selected by clicking on the button next to the Answers. If these fields are not filled out, a user gets a prompt saying that so and so field is blank. If have a problem, it works for all required fields except for Answer. Below is my code. I have attached a screenshot with Author and Answers blank. I only get a warning about the Author and not the Answers.

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  1. Private Sub Form_BeforeUpdate(Cancel As Integer)
  3.     nullerr = 0
  4.     strnull = ""
  6.     If IsNull(Me.txtQuestion) Then
  7.         nullerr = 1
  8.         strnull = "Questions " & vbNewLine
  9.     End If
  11.     If IsNull(Me.txtAuthor) Then
  12.         nullerr = 1
  13.         strnull = strnull & "Author " & vbNewLine
  14.     End If
  16.     If IsNull(Me.comboType) Then
  17.         nullerr = 1
  18.         strnull = strnull & "Type " & vbNewLine
  19.     End If
  21.     If IsNull(Me.toggleA) Or IsNull(Me.toggleB) Or IsNull(Me.toggleC) Or IsNull(Me.toggleD) Then
  22.         nullerr = 1
  23.         strnull = strnull & "Answer"
  24.     End If
  26.     If nullerr Then
  27.         MsgBox "These fields cannot be left blank: " & vbNewLine & strnull
  28.         DoCmd.RunCommand acCmdUndo
  29.     End If

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Apr 10 '14 #1
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2 Replies

Expert 100+
P: 1,240
I suspect all of your toggle switches have a value, probably defaulted to zero, so they fail the Isnull test.

You can put all of your toggle switches into one Group box and test only the value of the Group box, instead of testing all 4 of the toggle switches.

Give each of the 4 toggle switches a value (1-4) and put them in a group box. Set the group box value to zero before any selections are made. The group box will take on the value of the selected toggle switch within the group when one is selected. Conveniently, selecting one deselects all the others.

Apr 10 '14 #2

Expert 100+
P: 1,240
Ah, now that I see your other question, I realize you already have the group box set up. Very well, just change the way you test the result.

Apr 10 '14 #3

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