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VBA User Forms videos | Excel VBA Forms Pt 5 - Validating Forms

Posted by Andrew Gould on 31 March 2016

Excel VBA Forms Pt 5 - Validating Forms

Another aspect of validation is checking that every control on a form has been filled in. This video explains how to loop over the controls collection to check if every textbox has been completed.

See our full range of VBA training resources, or test your knowledge of VBA with one of our VBA skills assessment tests.

This video has the following accompanying files:

File name	Type	Description
Profitable Films - Pt5 Validating Forms.xlsm	Excel workbook with macros

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This page has 2 threads

From:	CodeGirl
When:	10 May 22 at 20:31

This code works for me; however, I have one textbox on my form that is for comments and isn't required to be filled in. How do exempt that textbox from being filled out? Additionally, I also have ComboBoxes that need to be filled in. How do I add them to this logic. TIA

From:	Andrew G
When:	11 May 22 at 07:04

Hi!

You can check for combo boxes using the same basic technique as for text boxes:

If TypeOf ctl Is MSForms.ComboBox Then

To exclude a specific text box you can test for some unique property which identifies it - its Name property is a good choice. If you have multiple controls you want to exclude from the validation you could enter a value in each control's Tag property, for example NoCheck, then test for that value in your loop. You can do that with nested If statements or by combining logical tests in a single statement:

If TypeOf ctl Is MSForms.TextBox And ctl.Tag <> "NoCheck" Then

I hope it helps!

From:	CodeGirl
When:	11 May 22 at 19:49

I got it to work using two separate For each statements. I tried two if statements and an elseif but both of these gave me an error of for without next. I am assuming the only way to turn the fields back to no highlight once the user enters data, before they hit the submit button, is to update each of the fields

From:	Andrew G
When:	13 May 22 at 08:58

Hi!

It's likely that you had the wrong number of End If statements. Here's the basic structure for a single For Each loop

Dim ctl As MSForms.Control
Dim tb As MSForms.TextBox
Dim cb As MSForms.ComboBox

For Each ctl In Me.Controls

If TypeOf ctl Is MSForms.TextBox Then

Set tb = ctl

If tb.Value = "" Then
tb.BackColor = rgbPink
End If

ElseIf TypeOf ctl Is MSForms.ComboBox Then

Set cb = ctl

If cb.Value = "" Then
cb.BackColor = rgbPink
End If

End If

Next ctl

You can use the Change event of a text box or combo box to detect when a user enters a value and switch the colour back but yes, you'd need to do this for each control.

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From:	Candice Hulo
When:	07 Apr 17 at 21:07

First of all, THANK YOU for such brilliant quality videos! Andrew G. is the perfect balance of humor & guru! I have found each of these videos to be engaging, easily relatable and packed full of new information!

Onto my question...

I am building a userform to collect information into a workbook, very very similar to your examples with Films and the gross profits they made. HOWEVER, where your example had 3 input boxes, mine will have over 40 input boxes.

What would your recommendation be for an alternative to doing a similar action for each of the input boxes private subs? That is A LOT of repetiion and risk for missing an update. Is there a way to code the action once, but let it loop through each Private Sub?

Specifcially, I am trying to use the following code from the videos, but I dont want to copy paste and edit this over 40 times. The input boxes are labeled Criteria001 through Criteria045.

Private Sub AddToList_Button_Click()

    If Criteria001.Value = "1" Or Criteria001.Value = "0" Or Criteria001.Value = "x" Then
        MsgBox ProcessorName & "'s scores have been added to the Analyst Workbook."
    Else
        Criteria001.BackColor = rgbPink
        Criteria001Label.ForeColor = rgbRed
        Criteria001.SetFocus
        MsgBox "You must enter either 1, 0, or x."
        Exit Sub
    End If
End Sub

From:	Andrew G
When:	10 Apr 17 at 07:33

Hi Candice,

Happy to hear that you've been finding the videos so useful! There certainly is a quicker way to vaildate multiple controls using a For Each loop. We do cover that technique in this video from around the 18:32 mark - this is definitely the approach to take if you hvae 40 text boxes to validate!

From:	Candice Hulo
When:	10 Apr 17 at 14:14

Thank you!

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