Where is findfirst?

Where is findfirst?

Base does not appear to have a FindFirst function on the rowset like MS Access, what is the equivalent Base function?

MSAccess VBA example:

Say there is a VB combo box which lists all the prospects in the database and allows the user to select a particular prospect and then have the form automatically go to that person's data record.

  Private Sub Find_Combo_AfterUpdate()
  Dim strCriteria As String
  
  strCriteria = "[Prospect_ID] =" & Me.Find_Combo
  
  Me.recordsetclone.FindFirst (strCriteria)
  If me.recordsetclone.NoMatch Then
      MsgBox "No entry found"
  Else
      Form_F_Prospects.Bookmark = me.recordsetclone.Bookmark
  End If
  
  End Sub

For this type of simple single column search, it is easy enough to create our own find first equivalent with AOO Basic:

 Sub Find_Combo_AfterUpdate( OEv as Object)
    ' Oev is the event object automatically sent to sub procedure call
    ' Oev will have a property Source that is the control that triggered
    ' the call to this procedure
  
  Dim oForm as variant ' The dataform obejct 
  
  Dim oComboBox as variant ' The combobox control
  
  Dim oBkMark as variant
  
  oForm = oEv.Source.Model.Parent
  
  oComboBox = oForm.getByName( "Find_Combo" )
    
  oBkMark = FindFirst( oForm.CreateResultSet(), "Prospect_ID", oComboBox.Text )
      ' oForm.CreateResultSet() is here equivalent to me.recordsetclone
  if not IsEmpty( oBkMark ) then
  		oForm.moveToBookmark( oBkMark )
  else
  	msgBox( oComboBox.Text & " not found" )
  end if
  
 end sub

 function FindFirst( oRS as variant, ColName as string, SearchVal as string ) as variant
        ' oRS is a resultSet object
        ' ColName is the name of a column in the resultset
        ' SearchVal is
    dim colIDX as integer
    dim NotFound as variant
  
    FindFirst = notFound
    colIDX = oRS.FindColumn( ColName )
    oRS.First
    do 
      if oRS.getString( colIDX ) <> Searchval
        oRS.Next
        if oRS.isAfterLast then
          exit do
        endif
      else
        FindFirst = oRS.getBookMark
        exit do
      end if
    loop while oRS.isAfterLast <> True
  
 end function