dragNdrop all columns between two VirtualTreeView - delphi

Question

How to copy all columns between two VirtualTreeView? In my case only the first one is copied.
I use VirtualTreeView v6.6.
The code that I'm using:
type
PItemNode1 = ^TItemNode1;
TItemNode1 = record
Name: WideString;
Order: string;
Quantity:String;
end;
type
PItemNode2 = ^TItemNode2;
TItemNode2 = record
Name: WideString;
Order: string;
end;
procedure TForm1.FormCreate(Sender: TObject);
var
Node: PVirtualNode;
begin
VT.NodeDataSize := SizeOf(TItemNode1);
VT2.NodeDataSize := SizeOf(TItemNode2);
VT.RootNodeCount := 2;
VT2.RootNodeCount := 10;
end;
Procedure for inserting OLE data
procedure TForm1.InsertData(Sender: TVirtualStringTree; DataObject: IDataObject;
Formats: TFormatArray; Effect: Integer; Mode: TVTNodeAttachMode);
var
FormatAccepted: Boolean;
i: Integer;
begin
FormatAccepted := false;
for i := 0 to High(Formats) do
begin
if Formats[i] = CF_VIRTUALTREE then
begin
if not FormatAccepted then
begin
Sender.ProcessDrop(DataObject, Sender.DropTargetNode, Effect, Mode);
FormatAccepted := True;
end;
end;
end;
end;
Drag and Drop precedures
procedure TForm1.VT2DragAllowed(Sender: TBaseVirtualTree; Node: PVirtualNode;
Column: TColumnIndex; var Allowed: Boolean);
begin
Allowed := True;
end;
procedure TForm1.VT2DragDrop(Sender: TBaseVirtualTree; Source: TObject;
DataObject: IDataObject; Formats: TFormatArray; Shift: TShiftState;
Pt: TPoint; var Effect: Integer; Mode: TDropMode);
procedure DetermineEffect;
begin
if Shift = [] then
begin
if Source = Sender then
Effect := DROPEFFECT_MOVE
else
Effect := DROPEFFECT_COPY;
end
else
begin
if (Shift = [ssAlt]) or (Shift = [ssCtrl, ssAlt]) then
Effect := DROPEFFECT_LINK
else if Shift = [ssCtrl] then
Effect := DROPEFFECT_COPY
else
end;
end;
var
Attachmode: TVTNodeAttachMode;
Nodes: TNodeArray;
i: Integer;
begin
Nodes := nil;
case Mode of
dmAbove:
Attachmode := amInsertBefore;
dmOnNode:
Attachmode := amAddChildLast;
dmBelow:
Attachmode := amInsertAfter;
else
Attachmode := amNowhere;
end;
if DataObject = nil then
begin
//VCL
if Source is TVirtualStringTree then
begin
DetermineEffect;
Nodes := VT2.GetSortedSelection(True);
if Effect = DROPEFFECT_COPY then
begin
for i := 0 to High(Nodes) do
VT2.CopyTo(Nodes[i], Sender.DropTargetNode, Attachmode, false);
end
else
for i := 0 to High(Nodes) do
VT2.MoveTo(Nodes[i], Sender.DropTargetNode, Attachmode, false);
end;
end
else
begin
// OLE drag&drop.
if Source is TBaseVirtualTree then
DetermineEffect
else
begin
if Boolean(Effect and DROPEFFECT_COPY) then
Effect := DROPEFFECT_COPY
else
Effect := DROPEFFECT_MOVE;
end;
InsertData(Sender as TVirtualStringTree, DataObject, Formats, Effect,
Attachmode);
end;
end;
procedure TForm1.VT2DragOver(Sender: TBaseVirtualTree; Source: TObject;
Shift: TShiftState; State: TDragState; Pt: TPoint; Mode: TDropMode;
var Effect: Integer; var Accept: Boolean);
// Return True, if AParent - child node of ANode.
function IsNodeParent(AParent, ANode: PVirtualNode): Boolean;
var
NextParent: PVirtualNode;
begin
NextParent := AParent;
repeat
NextParent := NextParent.Parent;
until (NextParent = Sender.RootNode) or (NextParent = nil) or
(NextParent = ANode);
Result := ANode = NextParent;
end;
var
i: Integer;
Nodes: TNodeArray;
begin
Accept := True;
if (Assigned(Sender.DropTargetNode)) and
(Sender.DropTargetNode <> Sender.RootNode) then
Nodes := (Sender as TVirtualStringTree).GetSortedSelection(True);
if Length(Nodes) > 0 then
begin
for i := 0 to Length(Nodes) - 1 do
begin
Accept :=
(not IsNodeParent(Sender.DropTargetNode, Nodes[i]))
and (not(Sender.DropTargetNode = Nodes[i]));
if not Accept then Exit;
end;
end;
end;
Initialize the nodes of VT2(right VT in the picture above )and get the text for them
procedure TForm1.VT2GetText(Sender: TBaseVirtualTree; Node: PVirtualNode;
Column: TColumnIndex; TextType: TVSTTextType; var CellText: string);
var
ItemNode: PItemNode2;
begin
ItemNode := Sender.GetNodeData(Node);
if Assigned(ItemNode) then
begin
case Column of
0:
CellText := ItemNode^.Name;
1:
CellText := ItemNode^.Order;
end;
end;
end;
procedure TForm1.VT2InitNode(Sender: TBaseVirtualTree;
ParentNode, Node: PVirtualNode; var InitialStates: TVirtualNodeInitStates);
var
ItemNode: PItemNode2;
begin
ItemNode := Sender.GetNodeData(Node);
if Assigned(ItemNode) then
if Length(ItemNode^.Name) = 0 then
ItemNode^.Name := 'Node Index № ' + IntToStr(Node.Index);
ItemNode^.Order := IntToStr(Node.Index);
end;
Get a new text after the node is dropped
procedure TForm1.VT2NewText(Sender: TBaseVirtualTree; Node: PVirtualNode;
Column: TColumnIndex; NewText: string);
var
ItemNode: PItemNode2;
begin
ItemNode := Sender.GetNodeData(Node);
if Assigned(ItemNode) then
begin
case Column of
0:
ItemNode^.Name := NewText;
1:
ItemNode^.Order := NewText; // I've checked this line in the debugger. It is skipped
end;
end;
end;
Initialize the nodes of VT(left VT in the picture above )and get the text for them
procedure TForm1.VTGetText(Sender: TBaseVirtualTree; Node: PVirtualNode;
Column: TColumnIndex; TextType: TVSTTextType; var CellText: string);
var
ItemNode: PItemNode1;
begin
ItemNode := Sender.GetNodeData(Node);
if Assigned(ItemNode) then
case Column of
0:
CellText := ItemNode^.Name;
1:
CellText := ItemNode^.Order;
end;
end;
procedure TForm1.VTInitNode(Sender: TBaseVirtualTree; ParentNode,
Node: PVirtualNode; var InitialStates: TVirtualNodeInitStates);
var
ItemNode: PItemNode1;
begin
ItemNode := Sender.GetNodeData(Node);
if Assigned(ItemNode) then
if Length(ItemNode^.Name) = 0 then
ItemNode^.Name := 'VT1_Node № ' + IntToStr(Node.Index);
ItemNode^.Order := IntToStr(Node.Index);
end;
end.