How to scroll at the last item in the listbox through an event

[GG]

I know I can scroll to the last item in the listbox by calling
SetSelected all the time
What I need is when I add items through the Items.Add or Items.AddRange
to be called automatically and go the the bottom.
Anybody knows how to be implemented?

Thanks

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[Alex K]

Derive from ListBox. Override the add and addrange to work the way you want.

"GG" wrote:

I know I can scroll to the last item in the listbox by calling
SetSelected all the time
What I need is when I add items through the Items.Add or Items.AddRange
to be called automatically and go the the bottom.
Anybody knows how to be implemented?

Thanks

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[James Divine]

Well, there isn't an ItemsAdded event on the listbox, but you could build
one if you wanted.

This is just a thought, but does adding an item trigger a resize? If so,
then you could add the logic to select the last item at the resize event.

-James

"GG" wrote:

I know I can scroll to the last item in the listbox by calling
SetSelected all the time
What I need is when I add items through the Items.Add or Items.AddRange
to be called automatically and go the the bottom.
Anybody knows how to be implemented?

Thanks

*** Sent via Developersdex http://www.developersdex.com ***
Don't just participate in USENET...get rewarded for it!

[GG]

Thanks
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[GG]

Added the code to SizeChanged and works like a charm
if (lstMsgs.Items.Count==0)
return;
//This selects and highlights the last line
this.lstMsgs.SetSelected(lstMsgs.Items.Count - 1, true);
//This unhighlights the last line
this.lstMsgs.SetSelected(lstMsgs.Items.Count - 1, false);

This is the code in case somebody needs it
Thanks
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[GG]

Will take it back. It does not work.

I ended up having a separate proc like this
private void lstMsgsItemsAddScrollBottom(object item)
{
this.lstMsgs.Items.Add(item);
//This selects and highlights the last line
this.lstMsgs.SetSelected(lstMsgs.Items.Count - 1, true);
//This unhighlights the last line
this.lstMsgs.SetSelected(lstMsgs.Items.Count - 1, false);
}
and call this one instead of items.add

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