Re: How To maintain ListControl Values
The real value of using a virtual list, aside from the obviousness of only
having one copy of the data in memory, is that updating the control is very
fast. Loading any kind of container array (MFC, STL, etc.) is always faster
than loading a Windows control directly. Once you do your first virtual
list control it becomes academic.
I've toyed around with methods to do virtual tree controls too, but it is
nowhere near as easy. One technique I've found useful is just to populate
the tree as it is expanded (fill in the blanks as the user opens nodes).
That, at least, means you don't have to add all the items while the user
watches the wait cursor spin around.
Virtual list controls are no brainers as far as I'm concerned. I use them
now even for really small data sets ... of course they inevitably become
larger data sets.
Tom
"Joseph M. Newcomer" <newcomer@flounder.com> wrote in message
news:o415o5pvc0nfhjibtot4lng2nsl6ok28ts@4ax.com...
My preference is to use a structure to hold all the information (except
the index, in this
case, if it is simply the list position, 1,2, 3, etc.) and attach it as
the LPARAM of the
element of the list control.
Tom Serface advocates not doing this, but keeping a copy in an array and
using a virtual
listcontrol to display them.
Either of these approaches means there is only ONE copy of the live data
around, and this
eliminates the need to synchronize one kind of list with another.
Then you are free to do whatever you want if you want an edit control.
You then restore
the values to the one-and-only instance of the data object when you are
done.
joe
On Sun, 21 Feb 2010 20:40:27 -0800 (PST), muthukkumaran
<arumuthu@gmail.com> wrote:
Hi,
I had ListControl,its contains looks like " Index IPAddress ID Pwd"
fields .
I want to edit the box and give the input to those editbox values at
the run time.After that if user click close the Listcontrol dialog
application those values, will maintain the listcontrol.How to
maintain the listcontrol values.
In the OnInitDialog() function i called:
m_lstCtrl.SetExtendedStyle(m_lstCtrl.GetExtendedStyle()|
LVS_EX_GRIDLINES|LVS_EX_FULLROWSELECT);
I set the properties in the ListControl Appearance EditLabels i set
TRUE View i set REPORT and then Single Selection I set TRUE.Other
field i didn't change,only i changed those field Only.
Regards,
Joseph M. Newcomer [MVP]
email: newcomer@flounder.com
Web: http://www.flounder.com
MVP Tips: http://www.flounder.com/mvp_tips.htm