EditText (Delphi)

Description

This example is an event handler for a pop-up menu item. The handler enables the editing of the current item in a TListView control. The example would also work with a TTreeView control, or with any instance of a control class derived from TCustomViewControl.

Code

procedure TForm1.EditItem1Click(Sender: TObject);
begin
  TreeView1.Selected.EditText;
end;
 
procedure TForm1.FormCreate(Sender: TObject);
var
  MyTreeNode1, MyTreeNode2: TTreeNode;
begin
  with TreeView1.Items do
  begin
    Clear; { Remove any existing nodes. }
    MyTreeNode1 := Add(nil, 'RootTreeNode1'); { Add a root node. }
    { Add a child node to the node just added. }
    AddChild(MyTreeNode1,'ChildNode1');
 
    {Add another root node.}
    MyTreeNode2 := Add(MyTreeNode1, 'RootTreeNode2');
    {Give MyTreeNode2 to a child... }
    AddChild(MyTreeNode2,'ChildNode2');
 
    {Change MyTreeNode2 to ChildNode2 }
    { ... and add a child node to it.}
    MyTreeNode2 := TreeView1.Items[3];
    AddChild(MyTreeNode2,'ChildNode2a');
 
    {Add another child to ChildNode2, after ChildNode2a. }
    AddChild(MyTreeNode2,'ChildNode2b');
 
    {Add another root node.}
    Add(MyTreeNode1, 'RootTreeNode3');
  end;
end;
 
procedure TForm1.FormMouseDown(Sender: TObject; Button: TMouseButton;
  Shift: TShiftState; X, Y: Integer);
begin
  PopupMenu1.Popup(Left + X, Top + Y);
end;

Uses

• Vcl.ComCtrls.TTreeNode.EditText ( fr | de | ja )
• Vcl.ComCtrls.TCustomTreeView.Selected ( fr | de | ja )