Either of the checkbox can only be true - excel

Situation
I have two form control check boxes. I am trying to write a code that will allow only either of them to be true.
my code is
Sub CheckBox2_Click()
If CheckBox1.Enabled = True Then
CheckBox2.Enabled = False
Else
If CheckBox2.Enabled = True Then
CheckBox1.Enabled = False
End If
End If
End Sub
I have this code in module and have assigned the same macro for both the checkboxes. I get run-time error 424. I beleive this is very basic problem but I unable to dela with it.
Thank you

Please, test the following way. Form check boxes do not have a click event, as ActiveX ones have. You should associate the next sub to both of them. The check boxes I tested, have their names as "Check Box 1" and "Check Box 2". You have to change yours according to the reality in your case, Please, copy the next code in a standard module and then associate it to both used check boxes:
Option Explicit
Sub FormCheckBoxChange()
If ActiveSheet.CheckBoxes(Application.Caller).value = 1 Then
Select Case Application.Caller
Case "Check Box 1": ActiveSheet.CheckBoxes("Check Box 2").value = -4146
Case "Check Box 2": ActiveSheet.CheckBoxes("Check Box 1").value = -4146
End Select
End If
End Sub
Use instead of the used check box names, the appropriate ones for your case.
In case of Form text boxes, their value is not True and False as in case of ActiveX ones. It is 1 and -4146...

Are you sure you want to enable/disable the checkboxes.
Following code makes sure that either one of both boxes is checked.
Public Sub checkbox2_onClick()
Dim oCb1 As Object
Set oCb1 = Table1.Shapes("Checkbox1").OLEFormat.Object
Dim oCb2 As Object
Set oCb2 = Table1.Shapes("Checkbox2").OLEFormat.Object
If oCb2.Value = 1 Then oCb1.Value = 0
End Sub
Public Sub checkbox1_onClick()
Dim oCb1 As Object
Set oCb1 = Table1.Shapes("Checkbox1").OLEFormat.Object
Dim oCb2 As Object
Set oCb2 = Table1.Shapes("Checkbox2").OLEFormat.Object
If oCb1.Value = 1 Then oCb2.Value = 0
End Sub

Related

Masking Password using checkbox in VBA Excel

I have a Text box (PinEntry) and a Check box. The Check box will mask the password when checked. However, it only masks once. I understand the logic of the first subroutine that it should mask entries as long as I am still entering values in the Text box.
Private Sub CheckBox1_Click()
If AccessForm.PinEntry.Value = True Then
AccessForm.PinEntry.PasswordChar = ""
ElseIf AccessForm.PinEntry.Value = False Then
AccessForm.PinEntry.PasswordChar = "*"
Else
AccessForm.PinEntry.PasswordChar = "*"
End If
End Sub
Private Sub PinEntry_Change()
CheckBox1_Click
End Sub
The reason your code will only mask when clicked is because you will only ever enter your final Else statement. You are checking if the PinEntry (Textbox) has a boolean value of True or False, which it never will.
No need to call the checkbox click event when the text in the PinEntry Changes. Passwordchar is a property that only needs to be set on the textbox when you want to enable or disable it. You just need to act when the Checkbox is clicked.
This code will show the pin if the checkbox is checked, and apply the mask if it is unchecked.
Private Sub CheckBox1_Click()
If CheckBox1.Value Then
PinEntry.PasswordChar = ""
Else
PinEntry.PasswordChar = "*"
End If
End Sub

Make Label Visible if TextBox has a value

I am trying to make a label visible if a Textbox has a value. So far I have this but its not working?
Private Sub Label1_Change()
If MailChannel.Value <> "" Then
Me.Label1.Caption = True
Else
Me.Label1.Caption = False
End If
End Sub
Your current code won't be triggered now, because it is linked to form's label. You should link it to textbox change event. It can be realized as follows (assuming that textbox name is txtMailChannel):
Private Sub txtMailChannel_Change()
If txtMailChannel.Value <> "" Then
lblMailChannel.Visible = True
Else
lblMailChannel.Visible = False
End If
End Sub
P.S. Try to introduce some order to your code, especially what concerns naming convention of variables. Please check-out the following link for references: https://github.com/spences10/VBA-Coding-Standards.

Only allowing one checkbox to be checked for a userform

So I'm making a userform and I have to use make a group of mutually exclusive checkboxes or only allow the user to pick one. "But just use option buttons!" you cry. Two problems with that:
I already have a separate set of option buttons in the userform (I believe you can somehow group them to allow multiple sets but I am unfamiliar with how to actually do this).
My professor specifically wants checkboxes
so I attempted to solve this problem like this
If CheckBoxBar.Value = True And CheckBoxatm.Value = True Then
GoTo Here:
End If
If CheckBoxatm.Value = True And CheckBoxmmHg.Value = True Then
GoTo Here:
End If
If CheckBoxatm.Value = True And CheckBoxpsia.Value = True Then
GoTo Here:
End If
If CheckBoxBar.Value = True And CheckBoxmmHg.Value = True Then
GoTo Here:
End If
If CheckBoxBar.Value = True And CheckBoxpsia.Value = True Then
GoTo Here:
End If
If CheckBoxmmHg.Value = True And CheckBoxpsia.Value = True Then
GoTo Here:
End If
The here leads to a message box that re initializes the userform after the msg box says "You are only allowed to select one" with code like this
Here: MsgBox "You are only allowed to select on pressure unit."
The code "works" but it always goes to the Here: statement despite only picking one of the checkboxes. Can you spot anything wrong?
Thanks for the help!
As stated by Doug Glancy in a comment, your current code is probably missing an Exit Sub before the label Here:, which is therefore allowing your code to fall into the section after the label.
Another way of achieving what you are after is just to have one If statement which checks if more than one CheckBox is checked, and then display the MsgBox if so, e.g. as follows:
If CheckBoxBar.Value + _
CheckBoxatm.Value + _
CheckBoxmmHg.Value + _
CheckBoxpsia.Value < -1 Then
MsgBox "You are only allowed to select one pressure unit."
Exit Sub
End If
Or you can rely on the .Value being the default property of a CheckBox and thus "reduce" that code to:
If CheckBoxBar + CheckBoxatm + CheckBoxmmHg + CheckBoxpsia < -1 Then
MsgBox "You are only allowed to select one pressure unit."
Exit Sub
End If
Note: This method won't work if the .TripleState property of the CheckBox is set to True. (My thanks to Comintern for pointing that out.)
You can make the checkboxes act like option buttons if you override the click function and clear the other boxes (although you can also have none selected).
Private Sub CheckBoxatm_Click()
If Me.Controls("CheckBoxatm").Value = True Then Call ClearOtherValues("CheckBoxatm")
End Sub
Private Sub CheckBoxBar_Click()
If Me.Controls("CheckBoxBar").Value = True Then Call ClearOtherValues("CheckBoxBar")
End Sub
Private Sub CheckBoxmmHg_Click()
If Me.Controls("CheckBoxmmHg").Value = True Then Call ClearOtherValues("CheckBoxmmHg")
End Sub
Private Sub CheckBoxpsia_Click()
If Me.Controls("CheckBoxpsia").Value = True Then Call ClearOtherValues("CheckBoxpsia")
End Sub
Private Function ClearOtherValues(cb As String)
Dim cbPressure() As String, i As Long
cbPressure = Split("CheckBoxBar,CheckBoxatm,CheckBoxmmHg,CheckBoxpsia", ",")
For i = 0 To UBound(cbPressure)
If cbPressure(i) <> cb Then Me.Controls(cbPressure(i)).Value = False
Next i
End Function

Limit to only 1 selected checkbox

I have imported a table with check-boxes from Access to Excel. Is it possible to set the check-boxes where only one check-box can be selected from that imported table when using Excel?
In the comments Jeeped made an excellent point that radio buttons already have the functionality that you are looking for. On the other hand -- if you prefer the aesthetics of checkboxes then you can certainly use them. I created a userform with two checkboxes in a frame (and no other controls in the frame) and also included a label for displaying the chosen option. The following code deselects all other checkboxes in the frame when one is selected. I used a non-local Boolean variable to circumvent the other checkbox's event handlers while they were being changed to avoid a sort of echo effect I ran into where the events were firing when I didn't want them to (perhaps there is a less kludgy way to do that). The code easily extends to any number of checkboxes in a grouping frame.
Dim selecting As Boolean 'module level variable
Private Sub SelectOne(i As Long)
Dim c As Control
selecting = True
For Each c In Frame1.Controls
If c.Name <> "CheckBox" & i Then c.Value = False
Next c
DoEvents
Label1.Caption = i & " selected"
selecting = False
End Sub
Private Sub CheckBox1_Click()
If Not selecting Then SelectOne 1
End Sub
Private Sub CheckBox2_Click()
If Not selecting Then SelectOne 2
End Sub
I think this works best and its much easier - at least for a few boxes - for more you could write some formulas in excel and drag down then copy as values and copy paste text from excel into vba. Anyway, here it's how I did it:
I went and created code under each button - quite basic
Private Sub DateCheckBox1_Click()
If DateCheckBox1.Value = True Then
DateCheckBox2.Value = False
DateCheckBox3.Value = False
End If
End Sub
Private Sub DateCheckBox2_Click()
If DateCheckBox2.Value = True Then
DateCheckBox3.Value = False
DateCheckBox1.Value = False
End If
End Sub
Private Sub DateCheckBox3_Click()
If DateCheckBox3.Value = True Then
DateCheckBox2.Value = False
DateCheckBox1.Value = False
End If
End Sub

Checking if a worksheet-based checkbox is checked

I'm trying to use an IF-clause to determine whether my checkbox, named "Check Box 1", is checked.
My current code:
Sub Button167_Click()
If ActiveSheet.Shapes("Check Box 1") = True Then
Range("Y12").Value = 1
Else
Range("Y12").Value = 0
End If
End Sub
This doesn't work. The debugger is telling me there is a problem with the
ActiveSheet.Shapes("Check Box 1")
However, I know this code works (even though it serves a different purpose):
ActiveSheet.Shapes("Check Box 1").Select
With Selection
.Value = xlOn
My checkboxes (there are 200 on my page), are located in sheet1, by the name of "Demande". Each Checkbox is has the same formatted name of "Check Box ...".
Sub Button167_Click()
If ThisWorkbook.Worksheets(1).Shapes("Check Box 1").OLEFormat.Object.Value = 1 Then
Range("Y12").Value = 1
Else
Range("Y12").Value = 0
End If
End Sub
1 is checked, -4146 is unchecked, 2 is mixed (grey box)
Is this what you are trying?
Sub Sample()
Dim cb As Shape
Set cb = ActiveSheet.Shapes("Check Box 1")
If cb.OLEFormat.Object.Value = 1 Then
MsgBox "Checkbox is Checked"
Else
MsgBox "Checkbox is not Checked"
End If
End Sub
Replace Activesheet with the relevant sheetname. Also replace Check Box 1 with the relevant checkbox name.
Building on the previous answers, you can leverage the fact that True is -1 and False is 0 and shorten your code like this:
Sub Button167_Click()
Range("Y12").Value = _
Abs(Worksheets(1).Shapes("Check Box 1").OLEFormat.Object.Value > 0)
End Sub
If the checkbox is checked, .Value = 1.
Worksheets(1).Shapes("Check Box 1").OLEFormat.Object.Value > 0 returns True.
Applying the Abs function converts True to 1.
If the checkbox is unchecked, .Value = -4146.
Worksheets(1).Shapes("Check Box 1").OLEFormat.Object.Value > 0 returns False.
Applying the Abs function converts False to 0.
It seems that in VBA macro code for an ActiveX checkbox control, you use
If (ActiveSheet.OLEObjects("CheckBox1").Object.Value = True)
and for a Form checkbox control, you use
If (ActiveSheet.Shapes("CheckBox1").OLEFormat.Object.Value = 1)
Try: Controls("Check Box 1") = True

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