Listview question

[wasiq]

Hi,
I have a timer control and a listview control on my form. I want to go thorugh all the items in the listview control one by one at an interval of 1 second. how do i do that?

I was able to do that with a listbox control

Private Sub Timer1_Timer()
List1.ListIndex = List1.ListIndex + 1
End Sub

[Edited by wasiq on 08-05-2000 at 08:55 AM]

[HeSaidJoe]

'loop through a listview and display the items
'in the caption of a label

Option Explicit

Public i

Private Sub Command1_Click()
    i = 1
    Timer1.Enabled = True
End Sub

Private Sub Timer1_Timer()
  
  Timer1.Interval = 1000
  Label1.Caption = ListView1.ListItems(i).Text
     i = i + 1
  
   If i = ListView1.ListItems.Count Then
       Timer1.Enabled = False
   End If
   
End Sub

[OneSource]

Hi.

Of course, HeSaidJoe's code works, but I was trying to get each item in the ListView to be highlighted or selected just as this code:

Private Sub Timer1_Timer()
List1.ListIndex = List1.ListIndex + 1
End Sub

highlights each List Box Item as it cycles through. Is it possible to do this with the ListView Control? I couldn't get it to work.

HeSaidJoe: I would try to avoid Public variables as much as possible. You can declare a static variable instead.

OneSource: This should answer your question as well.

Private Sub Timer1_Timer()

    Static I As Integer
    If ListView1.ListItems(1).Selected = True Then I = 1
    I = I + 1
    
    If I = ListView1.ListItems.Count Then Timer1.Enabled = False
    
    ListView1.ListItems(I).Selected = True
    Print ListView1.SelectedItem
    
End Sub

For that List1.ListIndex = List1.ListIndex + 1, there should be an On Error Resume Next because when it gets to the end, it can't + 1 anymore, so it errors. That is, if you want the list to be selected.

I prefer to use Error Handling as a last resort. In this case, you can try a different approach.

List1.ListIndex = List1.ListIndex + 1
If List1.Selected(List1.ListCount - 1) = True Then Timer1.Enabled = False

[HeSaidJoe]

Sorry wsiq...got thrown for a loop by your question:

I want to go through all the items in the listview control one by one at an interval of 1 second. how do i do that?

Megatron:

Yes you are quite right..even MSDN suggest that you never ever use Public/Global varialbles except when absolutely necessary (absolutely no other way)as they are very hard to control and track.

Old habits die hard.

For i = 1 to 1000
 Print [:D]"I will remember!"[:D]
Next i

Later.

[OneSource]

Megatron, it did.

[wasiq]

thank u people,
your source worked fine. I was able to highlight every selected item by using the following code.

Private Sub Command1_Click()
Static i As Integer
i = i + 1
ListView1.ListItems(i).Selected = True
ListView1.SetFocus
Label1.Caption = ListView1.SelectedItem
If i = ListView1.ListItems.Count Then i = 1
End Sub

Private Sub Form_Load()
For i = 0 To 100
ListView1.ListItems.Add , , i
Next i
End Sub