Microsoft Access MDB (MultiRelational-Data-Base) Programming
INTRODUCTION
(Source: https://www.encodedna.com/excel/dynamically-create-controls-in-excel-userform-and-save-data.htm)Excel VBA - Dynamically create controls in UserForm and save data in Ms-Access
excel vba
You can easily add multiple controls to a UserForm in Excel, simply by dragging and dropping the controls from the toolbox on to the form. Do you know you can create the UserForm controls at runtime? Yes, you can and here I am sharing an example that shows how to create controls dynamically in a UserForm using VBA and save all the data to an Ms-Access table.
The example here does not cover or create all the ActiveX Controls that are available in the toolbox, but it creates some of the most important controls (like the textbox, combo, checkbox etc.) dynamically and adds it to a Frame inside the UserForm.
Related Post: Excel VBA – Loop Through All Textboxes in UserForm and Clear the Values
It’s a simple data entry form, where a user can enter details about an Employee (its like an Employee master) and save the data in a database (Ms-Access).
The most important part of this example is that it creates an ActiveX Command Button with Events, at run time, so you can save the data.
Create a Table in Ms-Access
Since, I’ll be saving the data in the UserForm in an Ms-Access table, I’ll first create the table. Open Ms-Access, and from the top menu, find Create and choose Table option. Name the table as Employee and add few fields to the table. See the image.
Add a UserForm in Excel
Open an Excel file and save the file as Macro or in .xlsm format. To add a UserForm, you will have to open the VBA editor. You can open the editor by right clicking the Sheet1 tab (or any tab at the bottom of your worksheet) and choose View Code option or simply press Alt+F11 keys.
Next, open Project Explorer window, right click the project to Insert a UserForm.
From the ToolBox, drag and drop a Frame on to the UserForm. This is the only control we’ll actually add at design time. The Frame will serve as the main or parent container for all the controls that we’ll create at run time. Don’t add any caption to the frame.
Add a Module to Create ActiveX Data Objects
The UserForm in this example, has a ComboBox (a dropdown list) , which has a list of Countries. Since this list will have many values, I don’t want to hardcode the values. Instead, I’ll add the list of countries in Sheet2 in my worksheet (I have named Sheet2 as Country), and extract and fill this data to the ComboBox, at run time.
I am using ADO connection object to set a connection and fetch records from Sheet2 (for the combo box). Therefore, you must add the ADO library reference in your application.
From the top menu in your VBA editor, click Tools and choose References. In the Reference window, find and select Microsoft ActiveX Data Objects 6.1 Library (or any other version).
Now, add this code in your Module.
Option Explicit
Public myConn As New ADODB.Connection
Public myComm As New ADODB.Command
Public rs As New ADODB.Recordset
Public sQuery As String
' Set a connection.
Sub SetConn(sConnString As String)
If myConn.State = adStateOpen Then
myConn.Close
End If
With myConn
.ConnectionString = sConnString
.Open ' Open the connection.
End With
End Sub
The Code to create and add UserForm Controls dynamically
Option Explicit
Public Form As UserForm1
Public childFrame As MSForms.Frame
Public txtName As MSForms.TextBox
Public lblName As MSForms.Label
Public txtDesig As MSForms.TextBox
Public lblDesig As MSForms.Label
Public chkMisc1 As MSForms.CheckBox
Public chkMisc2 As MSForms.CheckBox
Public fraGender As MSForms.Frame
Public optFemale As MSForms.OptionButton
Public optMale As MSForms.OptionButton
Public lblLine As MSForms.Label
Public lblCountry As MSForms.Label
Public cmbCountry As MSForms.ComboBox
Public WithEvents btSubmit As MSForms.CommandButton
Dim sConnString As String
Private Sub UserForm_Initialize()
fraContainer.Caption = ""
fraContainer.BorderStyle = fmBorderStyleNone
Call Init(UserForm1, fraContainer)
End Sub
Public Sub Init(myForm As UserForm1, fraMain As MSForms.Frame)
Set Form = myForm
Set childFrame = fraMain.Controls.Add("Forms.Frame.1")
With childFrame
.Height = 155
.Width = myForm.Width - 25
With .Controls
' Employee Name.
Set lblName = .Add("Forms.Label.1")
With lblName
.Top = 10
.Left = 6
.Caption = "Employee Name"
.Name = "lblName"
End With
Set txtName = .Add("Forms.TextBox.1")
With txtName
.Top = 8
.Left = 90
.Width = 130
.Name = "EmpName"
End With
' Employee Designation.
Set lblDesig = .Add("Forms.Label.1")
With lblDesig
.Top = 30
.Left = 6
.Caption = "Designation"
.Name = "lblDesig"
End With
Set txtDesig = .Add("Forms.TextBox.1")
With txtDesig
.Top = 28
.Left = 90
.Width = 130
.Name = "Designation"
End With
' *****
' Add a line.
Set lblLine = .Add(bstrProgID:="Forms.Label.1")
With lblLine
.Top = 45
.Caption = "______________________________________"
.Width = myForm.Width
.ForeColor = vbBlue
.TextAlign = fmTextAlignCenter
End With
' *****
' Add two check boxes.
Set chkMisc1 = .Add("Forms.CheckBox.1")
With chkMisc1
.Top = 60
.Left = 6
.Width = 57
.Height = 18
.Caption = "Misc 1"
.Value = "Msc 1"
End With
Set chkMisc2 = .Add("Forms.CheckBox.1")
With chkMisc2
.Top = 60
.Left = 90
.Width = 57
.Height = 18
.Caption = "Misc 2"
.Value = "Msc 2"
End With
' *****
' Add a Frame for Option buttons.
Set fraGender = fraMain.Controls.Add("Forms.Frame.1")
With fraGender
.Top = 2
.Left = 250
.Height = 45
.Width = 135
.Caption = "Gender"
With .Controls
' Add two option boxes.
Set optFemale = .Add("Forms.OptionButton.1")
With optFemale
.Top = 10
.Left = 7
.Width = 57
.Height = 18
.Caption = "Female"
End With
Set optMale = .Add("Forms.OptionButton.1")
With optMale
.Top = 10
.Left = 70
.Width = 57
.Height = 18
.Caption = "Male"
End With
End With
End With
' *****
' Country.
Set lblCountry = .Add("Forms.Label.1")
With lblCountry
.Top = 90
.Left = 6
.Caption = "Country"
.Name = "lblCountry"
End With
' Add combo box.
Set cmbCountry = .Add("Forms.ComboBox.1")
With cmbCountry
.Top = 90
.Left = 90
.Width = 130
.Height = 18
End With
' Fill the combo box with a list of countries dynamically.
Call fillCombo(cmbCountry)
' *****
' Finally, add the submit button.
Set btSubmit = .Add("Forms.CommandButton.1")
With btSubmit
.Top = 120
.Left = 90
.Width = 130
.Height = 25
.Caption = "Submit"
End With
End With
End With
End Sub
' Click event for the dynamically created Submit button.
Private Sub btSubmit_click()
Call SaveData(txtName.Text, txtDesig.Text, IIf(optFemale, "Female", "Male"), _
IIf(chkMisc1 <> "", chkMisc1.Value, ""), IIf(chkMisc2 <> "", chkMisc2.Value, ""), cmbCountry.Value)
End Sub
Private Sub fillCombo(cmb As MSForms.ComboBox)
' Fill combo box with data extracted from Sheet2 (or sheet name Country).
' Reference: https://www.encodedna.com/excel/how-to-create-cascading-combo-box-in-excel-using-vba.htm
sConnString = "Driver={Microsoft Excel Driver (*.xls, *.xlsx, *.xlsm, *.xlsb)};" & _
"DBQ=" & ActiveWorkbook.Path & Application.PathSeparator & ActiveWorkbook.Name
SetConn(sConnString) ' Set connection.
sQuery = "SELECT *from [Country$]" ' Read data in sheet name Country.
cmb.Clear
If rs.State = adStateOpen Then
rs.Close
End If
rs.CursorLocation = adUseClient
rs.Open sQuery, myConn, adOpenKeyset, adLockOptimistic
If rs.RecordCount > 0 Then
Do While Not rs.EOF
cmb.AddItem rs.Fields(1).Value ' Fill the combo box.
rs.MoveNext
Loop
Else
MsgBox "There are no categories in the list.", vbCritical + vbOKOnly
Exit Sub
End If
End Sub
' Procedure to save data extracted from the dynamically created fields.
Sub SaveData(sEmpName As String, sDesig As String, sGender As String, sMisc1 As String, _
sMisc2 As String, sCountry As String)
sConnString = "PROVIDER = Microsoft.ACE.OLEDB.12.0; Data Source = E:\Employee.accdb; Persist Security Info=False"
SetConn (sConnString)
' The Insert data query.
Dim sInsertQuery As String
sInsertQuery = "INSERT INTO Employee (EmployeeName, Designation, Gender, Misc1, Misc2, Country) " & _
" VALUES('" & sEmpName & "','" & sDesig & "', '" & sGender & "', '" & _
sMisc1 & "', '" & sMisc2 & "', '" & sCountry & "')"
' Save the data.
With myComm
.CommandText = sInsertQuery
.ActiveConnection = myConn
.CommandType = adCmdText
.Execute
End With
myConn.Close
MsgBox ("New employee data created!")
Dim ctrl As Control
For Each ctrl In Me.Controls
' Clear all the data in the fields.
' Reference: https://www.encodedna.com/excel/loop-through-all-textboxes-in-userform-and-clear-the-values-in-vba.htm
If TypeName(ctrl) = "TextBox" Or _
TypeName(ctrl) = "CheckBox" Or _
TypeName(ctrl) = "ComboBox" Or _
TypeName(ctrl) = "OptionButton" Then
ctrl.Value = ""
End If
Next ctrl
End Sub
The code looks a bit lengthy, but its useful. I’ll explain it.
Also Read: How to Create a Cascading Combo Box in Excel using VBA
I have declared all the control objects in the beginning. The frame named childFrame is attached to the main frame or the parent frame (which we have added in the beginning). The childFrame will actually have all the other controls that I am creating at run time.
I have set the width and height of the childFrame, so it can accomodate all the controls.
With childFrame
.Height = 155
.Width = myForm.Width – 25
With .Controls
…
End With
Next, I’ll add the remaining controls, like the textboxes, labels, option buttons, checkboxes etc. to the childFrame. Each control is placed on the frame using its .Top and .Left properties. This might look like time consuming, but its worth it. Even, dragging and dropping the controls at a specific location on the form, takes time.
I also have a Submit button. I have created a CommanButton object in the beginning using the WithEvents property. Buttons, like any other controls, have events. I need to use the button’s Click event to submit the data.
Creating and using the events at run time is simple.
Public WithEvents btSubmit As MSForms.CommandButton
Here’s how you declare the Event.
Private Sub btSubmit_click()
Call SaveData(txtName.Text, txtDesig.Text, IIf(optFemale, "Female", "Male"), _
IIf(chkMisc1 <> "", chkMisc1.Value, ""), IIf(chkMisc2 <> "", chkMisc2.Value, ""), cmbCountry.Value)
End Sub
Along with this, I have two more procedures.
• Procedure fillCombo() fills a ComboBox with a list of Countries. See how I am using an SQL like query SELECT *from [Country$] to fetch the data from my Excel worksheet. The procedure takes a parameter in the form of an object.
Private Sub fillCombo(cmb As MSForms.ComboBox)
End Sub
• Procedure SaveData() saves the data in the UserForm to an Ms-Access table named Employee (I have created in the beginning).
The procedure takes few string parameters. These are the data fetched from the dynamically created controls in the UserForm.
Here again I am creating an ADO connection. Look at the connection string and the Provider I have used to connect to an Ms-Access database.
That’s it. Run the application. If everything goes right, you should have a simple, basic form, with some dynamically created controls. Fill the form with some values and click the Submit button.
Thanks for reading.
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The above is a text-only post. See the original post here - if at all it is available!!
CA Vikram Shankar Mathur
Reposted on January 12, 2025 @ 18:07 Hours IST
Reposted on January 12, 2025 @ 18:07 Hours IST
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