How do I select an item in a VB6 Listbox programatically?

the property ListIndex is to be used to specify / get the index of the currently selected item.
-1 means -> no item selected.

Thanks for your quick response AngelIII

I have the index data of the selected item, now what I want to do is "highlight" that same item once the listbox is refreshed.

How do I make an item "highlighted" ie, the selected item.

As angelIII said, use the ListIndex() property.

Store it  in a variable, modify (or update) your ListBox, then set it again:

    Dim curIndex As Integer
    curIndex = List1.ListIndex
   
    ' do something with the ListBox...
   
    List1.ListIndex = curIndex

It's better to get text instead of index,

index may change after you add some item into listbox

I agree with EDDYKT and provided that each text in the list box is unique.  If not, then save both the text and the ItemData, but first set the ItemData property to the newly added item so that whenever items are removed from the listbox (which will change the ListIndex value) the ItemData will still remain.  This will allow easy lookup when looping thru the list box to set/get the desired item.

'// Form variables in Declaration section
   Dim m_iItem As Integer
   Dim m_sText As String

   Private Sub Form_Load()
      Dim ii As Integer
      For ii = 1 to 20
         PopulateListBox "Item " & ii
      Next
   End Sub

   Sub PopulateListBox(sNewItem As String)
      Static iNewItem As Integer
      iNewItem = iNewItem + 1
      List1.AddItem sNewItem
      List1.ItemData(List1.NewIndex) = iNewItem
   End Sub

   Private Sub List1_Click()
      'Save the currently selected item
      m_sText = List1.List(List1.ListIndex)
      m_iItem = List1.ItemData(List1.ListIndex)
   End Sub

   Sub SelectSavedItem()
      Dim ii As Integer
      For ii = 0 to Lis1.ListCount - 1
          If (List1.List(ii) = m_sText) And (List1.ItemData(ii) = m_iItem) Then
             List1.ListIndex = ii
             Exit For
          End If
      Next
   End Sub

It's very funny because EDDYKT and my comments were originally pointed out using the "ItemData" property, but never got accepted or even agreed on.

Moreover, the Asker didn't mention that he was pulling data from a database.