Question

I am trying to use a string variable instead of hardcoding the forms name as below.

FrmMainControl.Controls

but want to use this.

Forms("FrmMainControl").Controls

However, i get the error Sub or Function not defined. Please help. This is in VBA btw.

Answer 1

Assuming the form is loaded you can search the UserForms collection;

Dim form As UserForm: Set form = getInstanceOfLoadedUfrm("frmMainControl")
If Not form Is Nothing Then
    MsgBox form.Controls.Count
Else
    '//load
    Set form = UserForms.Add("frmMainControl")
    MsgBox form.Controls.Count
End If

Function getInstanceOfLoadedUfrm(name As String) As UserForm
name = UCase$(name)
For Each form In UserForms
    If (Ucase$(form.name) = name) Then
        Set getInstanceOfLoadedUfrm = form
    End If
Next
End Function