How to open and run a userform? - excel

Question

I have a userform on an Excel file called "userform":
Private Sub add1_Change()
End Sub
Private Sub add2_Change()
End Sub
Private Sub Calc_Click()
Result.Value = Val(add1.Value) + Val(add2.Value)
End Sub
This userform takes the value from the user and adds them together and shows the result in a textbox.
I want to create a new macro in another workbook named "input". The macro in this workbook should open the userform workbook, enter values in the textbox add1 and add2, then run the userform calculate button.
What I've tried thus far:
Set add1.value to extract a value from say, cell A1, and similarly for add2.value.
Then I created a macro on the input workbook to change the values in cells A1 and A2.
The problem from here is I don't know how to open the userform and click calculate.
Ideally, I would like a macro which opens the userform, enters the data and hits calculate then closes the userform - Rather than editing the userform itself.

Answer 1

You could add the 2 values in the UserForm in this way(its slightly different then you try to do it now):
You use your current code to open the UserForm:
Sub userform()
Workbooks.Open (ThisWorkbook.Path & "\userform.xlsm")
Application.Run "userform.xlsm!Calc"
End Sub
As shown above you don't assign any values this will happen in your userform.xlsm Workbook
Below is the code you put into the sub Initialize of your UserForm:
Private Sub UserForm_Initialize()
Dim wb As Workbook
Dim ws As Worksheet
Set wb = Workbooks("input.xlsx")
Set ws = wb.Worksheets("Input")
Dim i as Integer
Dim k as Integer
UserForm.add1.Value = ws.Range("A2").Value
UserForm.add2.Value = ws.Range("B2").value
UserForm.calc.Value = val(UserForm.add1.Value) + val(UserForm.add2.Value)
End Sub
As shown above calc is changed to a Textbox, therefor you don't need to click a button its directly done when the UserForm is loaded.
You could also use a Label instead of a Textbox.
the code would then change to:
UserForm.calc.Caption = Str( val(UserForm.add1.Value) + val(UserForm.add2.Value) )

Answer 2

#DirkReichel could you elaborate a bit more on this? I've added what you said, but say I wanted to change the value on the add1 textbox how would I call it? Right now, I have this: 'Sub userform() Dim a As Integer Dim b As Integer a = Cells(1, 2) b = Cells(2, 2) Workbooks.Open (ThisWorkbook.Path & "\userform.xlsm") Application.Run "userform.xlsm!Calc" End Sub' the calc macro just opens up the userform, I don't know how to actually "input" data or hit calculate
The answer:
I created 2 WB and just this simple code worked for me ... however: you may need to change the settings of the trust center.
Book1 Module: (the WB with Userform1 holding TextBox1 and CommandButton1)
Option Explicit
Public Function getUF()
Set getUF = UserForm1
End Function
Book2 Module:
Option Explicit
Public ExtUF As Variant
Sub the_UF()
Workbooks.Open "Book1.xlsm"
Set ExtUF = Application.Run("Book1.xlsm!getUF") 'get the Form
Debug.Print ExtUF.TextBox1.Value 'check old value
ExtUF.TextBox1.Value = "dada" 'change it
Debug.Print ExtUF.TextBox1.Value 'check for new value
ExtUF.CommandButton1.Value = True 'hit the button
ExtUF.Show 'show the form
Stop 'to check the userform
ExtUF.Hide 'hide it again
End Sub
Now just run the_UF and check for functionality. If everything does work, adopt it to your code the way you need it.
If you have any questions, just ask ;)