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2 Listboxes

Posted on 2010-09-12
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Last Modified: 2012-08-13
Hi all,

Should be an easy question. I have 2 listboxes on my form. What I am trying to do is the following. I am reading data from my serial port and adding it to listbox1 but I need to "pause" it some times so I have an invisible listbox2 also to which the data is then directed when in "paused" state. So how do I append all the data from listbox2 into listbox when "unpaused"?
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Question by:DigitalNam
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Accepted Solution

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Mechanic_Kharkov earned 2000 total points
ID: 33657103
Listbox1.Items.BeginUpdate;
Listbox1.Items.AddStrings(ListBox2.Items);
ListBox1.Items.EndUpdate;

;-)
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Author Closing Comment

by:DigitalNam
ID: 33657143
Hehehe thanks Mechanic Kharkov... works like a charm. Thanks for the quick response.
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Expert Comment

by:Mechanic_Kharkov
ID: 33657166
Not at all. And one more thing: You don't need to use hidden listbox, just use TStringList to collect lines. E.g.:

var ReservedList: TStringList;

begin
 ReservedList := TStringList.Create();
try
   ... //use it
finally
  ReservedList.Free;
end;
end;

This list is the same as TListbox.Items. You can Clear it, Add, AddStrings, and so on. But it has no visual representation on your form. You can create it in FormCreate method and free in FormClose as well.
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by:DigitalNam
ID: 33657188
Thank you for the suggestion.
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