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Fast ListView Clear Function


The ListView's clear method becomes slow on large lists. This function removes items faster.

Original Author: David Peake

Inputs

ListView Control

Assumptions

You've got VB!

Code

Public Sub ListView_Clear(lstListName As ListView)
Dim lCount As Long
Dim lLoop As Long
' Count items in listview
lCount = lstListName.ListItems.Count
' clear would probably be faster on a low number!
If lCount > 10 Then
  ' loop through (backwards) to remove items
  ' They're not visible so it's becomes fatser!!
  For lLoop = lCount To 1 Step -1
  
    lstListName.ListItems.Remove lLoop
  Next
  
Else
  lstListName.ListItems.Clear
End If

End Sub

About this post

Posted: 2003-06-01
By: ArchiveBot
Viewed: 107 times

Categories

Visual Basic 6

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