How to get a visible root node in Virtual TreeView?
I am using Virtual TreeView and I need to select the root node when I click on the button. There is a RootNode property in TBaseVirtualTree, but based on the documentation, it is not used for enumeration. Also that root node is invisible and not the actual root of the whole tree.
delphi virtualtreeview
edited Nov 21 '18 at 14:44
Triber
8471026
asked Nov 20 '18 at 23:05
alancc
4132720
add a comment |
I am using Virtual TreeView and I need to select the root node when I click on the button. There is a RootNode property in TBaseVirtualTree, but based on the documentation, it is not used for enumeration. Also that root node is invisible and not the actual root of the whole tree.
delphi virtualtreeview
edited Nov 21 '18 at 14:44
Triber
8471026
asked Nov 20 '18 at 23:05
alancc
4132720
What's a name of the component? Is it third party or Delphi-standard? Which Delphi version?
– bunglehead
Nov 21 '18 at 7:13
Is it really different from other nodes? From Win32 point of view you first locate a node identifier and then select it, must be something similar in your case. There is potential for multiple roots too.
– bunglehead
Nov 21 '18 at 7:14
@bunglehead The component is mentioned multiple times in title, body and tags. However I'm not sure which of the repos currently is the "official" one.
– Uli Gerhardt
Nov 21 '18 at 9:36
add a comment |
I am using Virtual TreeView and I need to select the root node when I click on the button. There is a RootNode property in TBaseVirtualTree, but based on the documentation, it is not used for enumeration. Also that root node is invisible and not the actual root of the whole tree.
delphi virtualtreeview
edited Nov 21 '18 at 14:44
Triber
8471026
asked Nov 20 '18 at 23:05
alancc
4132720
I am using Virtual TreeView and I need to select the root node when I click on the button. There is a RootNode property in TBaseVirtualTree, but based on the documentation, it is not used for enumeration. Also that root node is invisible and not the actual root of the whole tree.
delphi virtualtreeview
delphi virtualtreeview
edited Nov 21 '18 at 14:44
Triber
8471026
asked Nov 20 '18 at 23:05
alancc
4132720
edited Nov 21 '18 at 14:44
Triber
8471026
asked Nov 20 '18 at 23:05
alancc
4132720
edited Nov 21 '18 at 14:44
Triber
8471026
edited Nov 21 '18 at 14:44
Triber
8471026
edited Nov 21 '18 at 14:44
Triber
8471026
8471026
asked Nov 20 '18 at 23:05
alancc
4132720
asked Nov 20 '18 at 23:05
alancc
4132720
asked Nov 20 '18 at 23:05
alancc
4132720
4132720
What's a name of the component? Is it third party or Delphi-standard? Which Delphi version?
– bunglehead
Nov 21 '18 at 7:13
Is it really different from other nodes? From Win32 point of view you first locate a node identifier and then select it, must be something similar in your case. There is potential for multiple roots too.
– bunglehead
Nov 21 '18 at 7:14
@bunglehead The component is mentioned multiple times in title, body and tags. However I'm not sure which of the repos currently is the "official" one.
– Uli Gerhardt
Nov 21 '18 at 9:36
add a comment |
What's a name of the component? Is it third party or Delphi-standard? Which Delphi version?
– bunglehead
Nov 21 '18 at 7:13
Is it really different from other nodes? From Win32 point of view you first locate a node identifier and then select it, must be something similar in your case. There is potential for multiple roots too.
– bunglehead
Nov 21 '18 at 7:14
@bunglehead The component is mentioned multiple times in title, body and tags. However I'm not sure which of the repos currently is the "official" one.
– Uli Gerhardt
Nov 21 '18 at 9:36
What's a name of the component? Is it third party or Delphi-standard? Which Delphi version?
– bunglehead
Nov 21 '18 at 7:13
What's a name of the component? Is it third party or Delphi-standard? Which Delphi version?
– bunglehead
Nov 21 '18 at 7:13
Is it really different from other nodes? From Win32 point of view you first locate a node identifier and then select it, must be something similar in your case. There is potential for multiple roots too.
– bunglehead
Nov 21 '18 at 7:14
Is it really different from other nodes? From Win32 point of view you first locate a node identifier and then select it, must be something similar in your case. There is potential for multiple roots too.
– bunglehead
Nov 21 '18 at 7:14
@bunglehead The component is mentioned multiple times in title, body and tags. However I'm not sure which of the repos currently is the "official" one.
– Uli Gerhardt
Nov 21 '18 at 9:36
@bunglehead The component is mentioned multiple times in title, body and tags. However I'm not sure which of the repos currently is the "official" one.
– Uli Gerhardt
Nov 21 '18 at 9:36
add a comment |
1 Answer
1
active
oldest
votes
Use code like the following to select the first node. Note that there is a separate function to get the first visible node (GetFirstVisible())
procedure TForm1.Button4Click(Sender: TObject);
var
node: PVirtualNode;
begin
node := VST.GetFirst();
VST.Selected[node] := True;
end;
answered Nov 21 '18 at 8:06
Tom Brunberg
13.2k62239
add a comment |
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1 Answer
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1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
Use code like the following to select the first node. Note that there is a separate function to get the first visible node (GetFirstVisible())
procedure TForm1.Button4Click(Sender: TObject);
var
node: PVirtualNode;
begin
node := VST.GetFirst();
VST.Selected[node] := True;
end;
answered Nov 21 '18 at 8:06
Tom Brunberg
13.2k62239
add a comment |
Use code like the following to select the first node. Note that there is a separate function to get the first visible node (GetFirstVisible())
procedure TForm1.Button4Click(Sender: TObject);
var
node: PVirtualNode;
begin
node := VST.GetFirst();
VST.Selected[node] := True;
end;
answered Nov 21 '18 at 8:06
Tom Brunberg
13.2k62239
add a comment |
Use code like the following to select the first node. Note that there is a separate function to get the first visible node (GetFirstVisible())
procedure TForm1.Button4Click(Sender: TObject);
var
node: PVirtualNode;
begin
node := VST.GetFirst();
VST.Selected[node] := True;
end;
answered Nov 21 '18 at 8:06
Tom Brunberg
13.2k62239
Use code like the following to select the first node. Note that there is a separate function to get the first visible node (GetFirstVisible())
procedure TForm1.Button4Click(Sender: TObject);
var
node: PVirtualNode;
begin
node := VST.GetFirst();
VST.Selected[node] := True;
end;
answered Nov 21 '18 at 8:06
Tom Brunberg
13.2k62239
answered Nov 21 '18 at 8:06
Tom Brunberg
13.2k62239
answered Nov 21 '18 at 8:06
Tom Brunberg
13.2k62239
answered Nov 21 '18 at 8:06
Tom Brunberg
13.2k62239
13.2k62239
add a comment |
add a comment |
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What's a name of the component? Is it third party or Delphi-standard? Which Delphi version?
– bunglehead
Nov 21 '18 at 7:13
Is it really different from other nodes? From Win32 point of view you first locate a node identifier and then select it, must be something similar in your case. There is potential for multiple roots too.
– bunglehead
Nov 21 '18 at 7:14
@bunglehead The component is mentioned multiple times in title, body and tags. However I'm not sure which of the repos currently is the "official" one.
– Uli Gerhardt
Nov 21 '18 at 9:36