LibreOffice Basic get Elements from form - forms

I'm trying to get value from textfield on the form.
sub Test(oEv)
oForm = oEv.Source.Model.Parent
textBox = oForm.getByName("Description")
MsgBox textBox.Text
end sub
There is an Exception: "Type: com.sun.star.container.NoSuchElementException" on the line "textBox = oForm.getByName". I have a text field with the name "Description" on the same form, where is the button I press to run this macro. What is wrong here?

Check that the name is the same case, not description.
Also, use the Form Navigator to determine whether the control is under the form in the hierarchy.
Have you tried using an introspection tool such as MRI or XrayTool to view the properties of oForm? With the tool, expand the form to see if it contains the Description control.
Often in Base, it is better to deal with the form as a recordset rather than reading the controls. Here is some sample code:
Sub ButtonClickHandler(oEvent as Object)
'com.sun.star.comp.forms.ODatabaseForm
oForm = oEvent.Source.Model.Parent
lDescriptionCol = oForm.findColumn("DESCRIPTION") ' from underlying query or table
Print(oForm.getString(lDescriptionCol))
BasicLibraries.LoadLibrary("XrayTool")
xray(oForm)
End Sub
For more ideas, see https://forum.openoffice.org/en/forum/viewtopic.php?f=39&t=38725.

Related

Open Form to a value selected on ComboBox - Ms Acces

I want to open a form to a specific record based on the value is selected on a comboBox. I have written a code and its working, but before opening the form it shows a dialogue box with input field asking for the parameter i want for the form which i dont want the VB code to ask.
DoCmd.OpenForm "Final_Exam", acNormal, , "[admclass] = " & Me.Combo4.Value & ""
This is the code i have written and the requirement is that on clicking the button the form opens without any dialogue box asking for parameter. thanksa
What I've found is the best way to open one form from another is to use OpenArgs. When opening Form 2 from Form 1's button, use code like this:
Private Sub cmdOpenOtherForm_Click()
DoCmd.OpenForm FormName:="frmOtherForm", OpenArgs:=Me.Combo4.Value
End Sub
Then, in the Load event of Form 2, use the openargs to set up your filter:
Private Sub Form_Load()
If Not IsNull(Me.OpenArgs) Then
Me.Filter="[admclass]=""" & Me.OpenArgs & """"
Me.FilterOn = True
End If
End Sub
If the field you're filtering on is a text field, make sure to properly escape double quotes (as is done above).

Open Subform in Access in New Window

I have a form in access ("F_Filter") where I indicate parameters to filter a datable. Form F_Filter also contains a subform which shows the filtered datatable results on the same screen. This subform with the filtered results is named "Child400." Its Source Object is "F_FilterResults".
I would like to be able to 1) open the subform in a new window so all I see are the filtered results and 2) export the results to Excel.
Normally I would be able to open a form in a new window by creating a button and creating an on click event with the following code
DoCmd.OpenForm "NameOfForm", acFormDS
However, this code does not work when I put in "Child400" as the NameOfForm. I think this is because Child400 is a subform and is not recognized by Access.
I also tried DoCmd.OpenForm "[F_Filter]![Child400]", acFormDS to no avail. Note that I have also tried DoCmd.OpenForm "F_FilterResults", acFormDS which works fine but this table only contains the prefiltered results.
DoCmd.OpenForm "F_FilterResults"
is the correct form to open. "Child400" is (I assume) the name of the subform control. That is not a form that you can open.
Then you need to apply the same filter as you did to the subform instance. The same method you use now for the subform can be used for the separate form.
If you have trouble with that, please add the existing filter code to your question.
Edit
There is no magic behind what records a form shows. It is controlled by a couple of properties. The easiest way is probably to simply take them over to the new form.
Something like:
Sub OpenResults()
Dim fSub As Form, fNew As Form
Set fSub = Me!Child400.Form
DoCmd.OpenForm "F_FilterResults", acFormDS
Set fNew = Forms!F_FilterResults
fNew.RecordSource = fSub.RecordSource ' if you change the RecordSource in your code
fNew.Filter = fSub.Filter
fNew.FilterOn = fSub.FilterOn
fNew.OrderBy = fSub.OrderBy
fNew.OrderByOn = fSub.OrderByOn
End Sub

LibreOffice Base Basic Get form field value on load

This works to get the value of a field at an event (say a button click):
Sub runatevent(Event as Object)
dim form as Object
dim cntrl
form = Event.Source.Model.Parent
cntrl = form.getByName("txtpath").currentvalue
print(cntrl)
End Sub
However when I try to fire this on the Form's "After Record Change" event, I get an error: "property or method not found: Model"
How do I get the value of "txtpath" on the "After Record Change" Form event?
To figure this out, I used XrayTool on the Event object. This is what worked:
form = Event.Source
As in my answer to your other question, I suggest reading the value from the result set:
nameCol = form.findColumn("PATH")
print(form.getString(nameCol))
The idea is that the form is based on a result set, so you can just read from the result set rather than getting a control from the form and then checking the value of the control. Just a little more elegant in my opinion.

libreoffice base macro parametric open close get current form name

libreoffice Base 4.3.3.2
Opening a Form page by name and then close the current page form like this work:
oForm = ThisDatabaseDocument.FormDocuments.getByName("SecondForm")
oForm.Open
oFormC = ThisDatabaseDocument.FormDocuments.getByName("CurrentForm")
oFormC.Close
but is there a way to close oFormC without writing by hand his name?
trying with:
oFormC = Event.Source.Model.Parent
oFormC = ThisDatabaseDocument.FormDocuments.getByName(Event.Source.Model.Parent)
oFormC = getParent()
return an error of var not set
Can't find any help in documentation.
The term 'form' in LibreOffice/OpenOffice is confusing because it refers both to the entire document (typically a Writer file) and also to each group of form controls inside that document. So each form document can have many forms (meaning a group of controls) inside it, and forms (groups of controls) can have sub-forms.
This code gets a form document (a Writer file embedded inside a Base file):
oDoc = ThisDatabaseDocument.FormDocuments.getByName("SecondForm")
This code gets the form that is a group of controls and that contains the control which triggered the macro: oForm = Event.Source.Model.Parent
Another way to get a group of controls inside the form document in which the macro was triggered: oForm = ThisComponent.drawpage.forms.MainForm
Replace "MainForm" with your actual form name - form here meaning a group of controls. You can see the names of forms and subforms that are inside a form document by opening the Form Navigator window. Make sure the toolbar Form Design is visible; the Form Navigator icon is the sixth from the left or top, looks like a rectangle with a compass in the upper right corner.
You may have guessed from the previous code how to close the document that is active when the macro is triggered:
ThisComponent.close

Using RecordSource to change form contents

I am trying to create a method that displays a selected table in a DS view form. The form will be used repeatedly to view different tables, so I figured the easiest way would be to create a form and dynamically change the RecordSource based on the user selection.
I created a form called "frmDisplay" to be used to display the contents of a table to the users. I am trying to use this code to update the form.
Private Sub btnViewEntries_Click()
Dim frmDisplay As Form
Dim selection As String
Me.cmboSelection.SetFocus
selection = "tbl" & Me.cmboSelection.Text
Set frmDisplay.RecordSource = selection
DoCmd.OpenForm "frmDisplay", acFormDS
End Sub
Currently, the code is throwing an "Improper use of property" error when I try to set the RecordSource to the selection made in the combo box.
Set frmDisplay.RecordSource = selection
I have looked around for a while now, but I cannot seem to find any definitive answer that applies to this example. Most posts that I found were missing the Set keyword...
Does anyone recognize the problem? More importantly, is this even the best way to make this
work?
Thanks
_____ EDIT _____
I figured it out, see code below.
Dim selection As String
Me.cmboSelection.SetFocus
selection = "SELECT * from tbl" & Me.cmboSelection.Text
DoCmd.OpenForm "frmDisplay", acDesign
Forms!frmDisplay.Form.RecordSource = selection
DoCmd.Close acForm, "frmDisplay", acSaveYes
DoCmd.OpenForm "frmDisplay", acFormDS
I note you've already provided your answer, but you may find the following helpful.
If you have a main form with the controls cmboSelection and btnViewEntries then add a subform control and call it fsbDisplay. Don't put anything in this subform, leave it unbound.
Now try the following one-liner:
Private Sub btnViewEntries_Click()
fsbDisplay.SourceObject = "Table.tbl" & cmboSelection.Value
End Sub
The advantage of this method is that you can use it to call up any table or query (prefix with Query. instead of Table.) and the fields shown are dynamically created.