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</o:shapelayout></xml><![endif]--></head><body lang=EN-NZ link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:#1F497D'>I think you should be using OnSelectItem and only act when Selected = True.<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> delphi-bounces@listserver.123.net.nz [mailto:delphi-bounces@listserver.123.net.nz] <b>On Behalf Of </b>Eric A<br><b>Sent:</b> Monday, 28 July 2014 6:52 a.m.<br><b>To:</b> Delphi ListServer<br><b>Subject:</b> Re: [DUG] ListView - Scroll Event<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-family:"Calibri","sans-serif"'>Yes, multiple OnChange events are generated on the ListView control, for both mouse clicks and navigation key depressions, as follows:<br><br>a) First mouse click or down arrow/PgDn key depression:<br>- Item = new selection<br><br>b) subsequent mouse clicks or down arrow/PgDn key depressions:<br>- Item - current selection<br>- Item= nil<br>- Item = new selection<br><br>Seems messy ...<o:p></o:p></span></p><div><div class=MsoNormal align=center style='text-align:center'><span style='font-family:"Calibri","sans-serif"'><hr size=3 width="100%" align=center id=stopSpelling></span></div><p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-family:"Calibri","sans-serif"'>From: <a href="mailto:robo555@gmail.com">robo555@gmail.com</a><br>Date: Sun, 27 Jul 2014 12:28:33 +0200<br>To: <a href="mailto:delphi@listserver.123.net.nz">delphi@listserver.123.net.nz</a><br>Subject: Re: [DUG] ListView - Scroll Event<o:p></o:p></span></p><div><p class=MsoNormal><span style='font-family:"Calibri","sans-serif"'>From memory, when a record changes, first an event gets fired where selected item is nil, then a second event gets fire where selected item is the new item.<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p><div><p class=MsoNormal><span style='font-family:"Calibri","sans-serif"'>On Sun, Jul 27, 2014 at 11:07 AM, Eric A <<a href="mailto:eaa603@hotmail.com" target="_blank">eaa603@hotmail.com</a>> wrote:<o:p></o:p></span></p><div><div><p class=MsoNormal><span style='font-family:"Calibri","sans-serif"'>(Delphi 7)<br><br>I wish to detect the user selecting a row (item) in a ListView component to display child records for the item in another control. <br><br>There is no "OnScroll" event for this control. I can use the "OnClick" event OK for a selection cia the mouse, but how do I detect when a user scrolls on to a record by using the arrow keys (or PgUp, PgDn or moving the scrollbar ?<br><br>I have tried the using the OnChange event but it seems that there are two events generated for each movement by the arrow keys.<br><br>Does anyone have a code snippet to accomplish this?<span style='color:#888888'><br><br><span class=ecxhoenzb>Eric.</span></span><o:p></o:p></span></p></div></div><p class=MsoNormal><span style='font-family:"Calibri","sans-serif"'><br>_______________________________________________<br>NZ Borland Developers Group - Delphi mailing list<br>Post: <a href="mailto:delphi@listserver.123.net.nz">delphi@listserver.123.net.nz</a><br>Admin: <a href="http://delphi.org.nz/mailman/listinfo/delphi" target="_blank">http://delphi.org.nz/mailman/listinfo/delphi</a><br>Unsubscribe: send an email to <a href="mailto:delphi-request@listserver.123.net.nz">delphi-request@listserver.123.net.nz</a> with Subject: unsubscribe<o:p></o:p></span></p></div><p class=MsoNormal><span style='font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p></div><p class=MsoNormal><span style='font-family:"Calibri","sans-serif"'><br>_______________________________________________ NZ Borland Developers Group - Delphi mailing list Post: <a href="mailto:delphi@listserver.123.net.nz">delphi@listserver.123.net.nz</a> Admin: <a href="http://delphi.org.nz/mailman/listinfo/delphi">http://delphi.org.nz/mailman/listinfo/delphi</a> Unsubscribe: send an email to <a href="mailto:delphi-request@listserver.123.net.nz">delphi-request@listserver.123.net.nz</a> with Subject: unsubscribe<o:p></o:p></span></p></div></div></div></body></html>