This small patch improves ListView drawing performance by caching the
control.LastVisibleIndex property. Very noticeable when working with 2
or 3 thousands items.
Regards,
Ernesto
Index: ThemeWin32Classic.cs
===================================================================
--- ThemeWin32Classic.cs (revision 100451)
+++ ThemeWin32Classic.cs (working copy)
@@ -2381,7 +2381,8 @@
bool details = control.View == View.Details;
int first = control.FirstVisibleIndex;
- for (int i = first; i <= control.LastVisibleIndex; i
++) {
+ int LastVisibleIndex = control.LastVisibleIndex;
+ for (int i = first; i <= LastVisibleIndex; i ++) {
if (clip.IntersectsWith
(control.Items[i].GetBounds (ItemBoundsPortion.Entire))) {
#if NET_2_0
bool owner_draw = false;
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