I have a main form with many subforms (and sub-Subforms). I would like to have a button on my main subform that will toggle each subform from enabled=true to enabled=false. Is it possible to do this without having to specifically refer to each subform? Maybe something like: For each subform of frmMainForm...?
Yes, you can loop the controls:
For Each Control In Me.Controls
If Control.ControlType = acSubform Then
' Do something with this subform control.
End If
Next
For Each Control In Me.Controls
If Control.ControlType = acSubform Then
If Control.Name = sSubform Then
Control.Visible = True
Else
Control.Visible = False
End If
End If
Next
help4access.com uses this method to turn subforms on/or when many housed with a single main form.
To toggle a boolean setting you set it to Not itself. I also give an alternate way to check the type of an object that works for all objects and not just a control that may or may not have a ControlType property.
For Each Control In Me.Controls
If TypeOf Control Is SubForm Then
Control.Visible = Not Control.Visible
End If
Next
Related
I have a ListBox called ListBox1 and I want to select all of the values automatically when opening the form. How can I do this?
My ListBox looks something like this
You can either in your script set all of the checkboxes to true with this piece of code that will loop over all of your different controls and set the checkbox ones to true
Dim currentControl As Control
For Each currentControl In Me.Controls
If TypeOf currentControl Is msforms.CheckBox Then
currentControl.Value = SelectAllCheckBox.Value
End If
Next
or you can put this code in a button called 'Select All' that will on click select all of the checkboxes.
Use For Loop and embed it in userform initialise event.....
For i = 0 To MyListBox1.ListCount - 1
MyListBox1.Selected(i) = True
Next i
This might help.
I know the title is a bit confusing so let me make myself as clear as possible.
In an Access form (2010), I have a set of text fields meant to contain dates. Those fields are all optional, the user can fill in any number of dates.
To make it more user-friendly, I want to associate each field to a toggle button. Then I want 2 things to happen :
On CURRENT event :
If a text field has a value, then it is visible and the toggle button
associated with it is pressed.
If a text field is empty, then it is not visible and the toggle button isn't pressed.
On CLICK of a toggle button :
If the text field associated with it has a value, then this field gets cleared (and invisible) and the toggle button gets de-pressed ;
If the text field associated with it is empty, then the focus is set on it and the toggle button gets pressed (and stay that way if a value is entered in the text field, otherwise everything gets back the way it was, invisible and unpressed).
So far I've achieved the first step by setting two collections of controls based on some examples I found online.
So, when the form is loaded, I call this :
Private mcolGroupTxToggle As New Collection
Private mcolGroupBuToggle As New Collection
Private Sub InitializeCollections()
Dim ctl As Control
If mcolGroupTxToggle.Count = 0 Then
For Each ctl In Me.Controls
If ctl.Tag = "txtoggle" Then
mcolGroupTxToggle.Add ctl, ctl.Name
End If
Next ctl
Set ctl = Nothing
End If
If mcolGroupBuToggle.Count = 0 Then
For Each ctl In Me.Controls
If ctl.Tag = "butoggle" Then
mcolGroupBuToggle.Add ctl, ctl.Name
End If
Next ctl
Set ctl = Nothing
End If
End Sub
And on Form_Current event, I call that :
Private Sub OnLoadToggles(mcol As Collection, pcol As Collection)
Dim ctl As Control
Dim btn As Control
Dim strBtn As String
For Each ctl In mcol
'Every button has the same name than the textbox + "b"
strBtn = ctl.Name & "b"
For Each btn In pcol
If btn.Name = strBtn Then
If IsNull(ctl) Then
ctl.Visible = False
btn.Value = False
Else
ctl.Visible = True
btn.Value = True
End If
End If
Next btn
Next ctl
Set ctl = Nothing
End Sub
Everything works well so far, but I'm not sure that's the best way to do it and I figured I would need to repeat some lines in step 2.
Making the distinction between text boxes and buttons in the procedure seems weird, I feel like it should be done prior so that I don't have to do it in every procedure. I also feel like it would be better to loop through each pair of controls (text + button) instead of each control in both collections.
Basically, I'm wondering if it would be (1) better and (2) possible to have something as simple as this :
Private Sub OnLoadToggles(Collection of pairs)
for each [pair of txt and btn]
if isnull(txt) Then
txt.visible = false
btn.value = false
else
...
end if
...
My guess is that I would need to make a public sub where I set a collection of pairs of buttons and text fields based on their tags (there are other controls in my form that need to be left alone) and names, but I'm not sure how, I'm a beginner in VBA.
Any suggestions please ?
-- Edit step 2 --
Thanks to Andre's answer the second part was easier than I thought. I've updated my sample database. So on click events I call this :
Private Sub ClickToggles()
Dim ctl As Control
Dim btn As Control
Dim strBtn As String
Dim strCtl As String
strBtn = Me.ActiveControl.Name
strCtl = Left(strBtn, Len(strBtn) - 1)
Set ctl = Me(strCtl)
Set btn = Me(strBtn)
If IsNull(ctl) Then
btn.Value = True
ctl.Visible = True
ctl.Enabled = True
ctl.SetFocus
Else
ctl.Value = ""
btn.Value = False
ctl.Visible = False
End If
End Sub
It's not perfect but it works. Probably not a good idea to clear the data at this point because misclicks may happen. It would be better to loop through the textboxes right before saving the form and clear values of invisible and/or disabled controls from the collection. I might to that later.
I had to add the .enabled property next to the .visible one because on lostfocus events I was getting an error saying the control was still active so it couldn't make it not visible.
Right now I'm more concerned about the amount of click and lost focus events. I'd rather have some public functions and event handlers dealing with it but it's getting too complicated for me. I'll get back to it when I know more about... everything.
Suggestions are still welcome anyway =) !
Since your control pairs are "paired" by their name anyway, you don't need any fancy constructs, or even the second collection. Just address the matching control directly by its name.
Instead of using If/Else for setting boolean properties, it is usually easier to assign a variable to the property.
Private Sub OnLoadToggles(mcol As Collection)
Dim ctl As Control
Dim btn As Control
Dim strBtn As String
Dim bShowIt As Boolean
For Each ctl In mcol
'Every button has the same name than the textbox + "b"
strBtn = ctl.Name & "b"
' If you have the control name, you can get the control directly:
Set btn = Me(strBtn)
' Using a variable you don't need If/Else
bShowIt = Not IsNull(ctl.Value)
ctl.Visible = bShowIt
btn.Value = bShowIt
Next ctl
' Note: this is not necessary for local variables - they go automatically out of scope
Set ctl = Nothing
End Sub
Currently I have 5 group boxes all filled with checkboxes, when I want to unselect all of them (for a 'clear selection' button), I use this code that I found on a forum:
For Each CheckBox In grpbox_Hiragana
CheckBox.checked = "false"
Firstly, I'm sure if this is the correct way to unselect the checkboxes, secondly the "grpbox_Hiragana" groupbox returns the following error:
Expression is of type 'System.Windows.Forms.GroupBox', which is not a collection type
If anyone could confirm this is the correct way of doing this/ help fix the error by telling me why the groupbox won't be accepted that would be great.
if you have all check box on one group box use this code :
Dim ChkBox As CheckBox = Nothing
' to unchecked all
For Each xObject As Object In Me.GroupBox1.Controls
If TypeOf xObject Is CheckBox Then
ChkBox = xObject
ChkBox.Checked = False
End If
Next
' to checked all
For Each xObject As Object In Me.GroupBox1.Controls
If TypeOf xObject Is CheckBox Then
ChkBox = xObject
ChkBox.Checked = True
End If
Next
Or you can use CheckedListBox Control.
A alternative with less lines of code is:
For Each ChkBox As CheckBox In GroupBox1.Controls
ChkBox.Checked = False
Next
Incidentally your code would have worked if you added .controls, the As CheckBox just enables the intellisense (and also ensures it is only Checkbox's that are processed) .
I have a userform that can be filled in but only if a previous userform was filled in as there are calculations in the userform based on the previous input and if those are empty, the calculations crash.
Now I did write a few if statements that check for these empty values and then had a brain flash.. how about if one of the fields is missing, the userform is just disabled. So thought, so done and it works :)
if DP1 = "" then
reportback.enable = false
else
end if
That is the form and it shows up beautifully and nothing can be changed, but Ohhh.. you can´t even close the form, nothing works .. lol.
So my question. Is there a way to disable all fields from any input but still have the cancel button active ?
Private Sub Cancel_Click()
Unload reportback
End Sub
Use below code to disable all controls on your form to avoid the issue.
UserForm1 refers to name of Userform kindly replace accordingly.
Dim ctrl As Control
For Each ctrl In UserForm1.Controls
ctrl.Enabled = False
Next
Set ctrl = Nothing
i have some comboboxes and some textboxes on a form
i would like to clear all of them with one line of code. is that possible?
something like all_controls.text=""
Not with one line of code. You will have to walk through all of the controls with a loop.
Dim ctl As Control
For Each ctl In Me.Controls
If (ctl.ControlType = acTextBox) Then
ctl.Value = Null
End If
Next ctl
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