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Drag and Drop in a List Box

Posted on 1997-06-04
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Last Modified: 2010-04-06
I am looking for an example how to drag items within a list box
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Question by:HarisIV
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3 Comments
 

Expert Comment

by:richweed
ID: 1336803
Are you working in delphi 2 or 1?

Can you give more details of what you want to do?

Cheers
Richard
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Author Comment

by:HarisIV
ID: 1336804
I am working in Delphi 2 and I want to be able to drag an item for a position in the list and move it in another position in thelist.
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Accepted Solution

by:
richweed earned 120 total points
ID: 1336805
Haris

Here goes, not the most elegant, but it works.

in the OnMouseDown event for the listbox add the following:

lastpos := listbox1.itemindex;

in the OnMouseUp event add:

listbox1.items.move(lastpos,listbox1.itemindex)

Also, add a global variable for the form:

var form1 : TForm;
    lastpos : integer;

This should do it, you can also change the cursor while dragging if you want to (I'll send info if you want to)

Cheers
Richard
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