Article: Q149342
Product(s): Microsoft C Compiler
Version(s): winnt:2.1,2.2,4.0,4.1
Operating System(s):
Keyword(s): kbcode kbIcon kbListView kbMFC KbUIDesign kbVC210 kbVC220 kbVC400 kbVC410 kbGrpDSMFCATL
Last Modified: 06-MAY-2001
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The information in this article applies to:
- The Microsoft Foundation Classes (MFC), included with:
- Microsoft Visual C++, 32-bit Editions, versions 2.1, 2.2, 4.0, 4.1
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SYMPTOMS
========
Inserting a large number of items into a CListCtrl simultaneously may take a
long time if the control is in the LVS_ICON or LVS_SMALLICON modes.
RESOLUTION
==========
Before starting to insert the items, disable painting of the control and
re-enable the painting when the insertions are done. For more information see
the "Sample Code" section of this article.
STATUS
======
This behavior is by design.
MORE INFORMATION
================
A CListCtrl can display its contents in one of four styles: LVS_ICON,
LVS_SMALLICON, LVS_LIST, or LVS_REPORT. The problem does not show up if the
control is in the LVS_LIST or the LVS_REPORT modes.
Sample Code
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//.....
m_List.SetRedraw(FALSE); // turn drawing off regardless of list mode
//....
//Insert the items
//....
m_List.SetRedraw(TRUE); // turn drawing back on and update the window
m_List.Invalidate();
m_List.UpdateWindow();
Additional query words: 2.10 2.20 3.10 3.20 4.00 4.10 CListCtrl adding inserting
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Keywords : kbcode kbIcon kbListView kbMFC KbUIDesign kbVC210 kbVC220 kbVC400 kbVC410 kbGrpDSMFCATL
Technology : kbAudDeveloper kbMFC
Version : winnt:2.1,2.2,4.0,4.1
Issue type : kbprb
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