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How to move items in TreeView by drag and drop method Turn on/off line numbers in source code. Switch to Orginial background IDE or DSP color Comment or reply to this aritlce/tip for discussion. Bookmark this article to my favorite article(s). Print this article
21-Jan-03
Category
VCL-General
Language
Delphi 2.x
Views
172
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Publisher:
DSP, Administrator
Reference URL:
DKB
			Author: Lou Adler

Move items in TreeView by drag&drop method

Answer:
1   
2   procedure TfrmMain.TreeView1DragOver(Sender, Source: TObject; X, Y: Integer;
3     State: TDragState; var Accept: Boolean);
4   begin
5     if TreeView1.Selected.Level = 0 then
6       Accept := False;
7   end;
8   
9   procedure TfrmMain.TreeView1DragDrop(Sender, Source: TObject; X, Y: Integer);
10  begin
11    if TreeView1.GetNodeAt(x, y).Level = 1 then
12      TreeView1.Items.Add(TreeView1.GetNodeAt(x, y), TreeView1.Selected.Text)
13    else
14      TreeView1.Items.AddChild(TreeView1.GetNodeAt(x, y), TreeView1.Selected.Text);
15    TreeView1.Selected.Delete;
16    TreeView1.AlphaSort;
17  end;
18  
19  end.


			
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