[Resolved]TTreeView.Expand is protected, Why?

[jamie]

I need to expand a TreeNode and apparently someone thought it was a good idea to protect it.

How am I supposed to directly expand a Node in the tree via code then?

I cannot find an alternative to this.

I suppose I could perform a local hack to expose it but why?

It is virtual which leads to me to believe its there somewhere?

[ASerge]

I need to expand a TreeNode and apparently someone thought it was a good idea to protect it.

Method TTreeNode.Expand(Recurse: Boolean) and property TTreeNode.Expanded are public.

[jamie]

Expand accepts a Node. which indicates that it must expand at that node.

Did I miss something ?

Code tools does see it but the compiler does not.

Code: Pascal  [Select][+][-]

1. protected
2.  
3. procedure
4.  TCustomTreeView.Expand(
5.  
6.  
7.   Node: TTreeNode
8.  
9.  
10. );
11.  virtual
12. ;
13.  

[MarkMLl]

I don't claim to be an expert but no ptoblem here:

Code: Pascal  [Select][+][-]

1.                   if (thisTLIndex < OTHERS_) { and not Assigned(TreeViewSlips.Selected)    WHY ?????   } then
2.                     TreeViewSlips.Items.TopLvlItems[thisTLIndex].Expand(false);
3.  

MarkMLl

[Remy Lebeau]

Expand accepts a Node. which indicates that it must expand at that node.

Did I miss something ?

Yes, you are. You are looking at the TCustomTreeView.Expand() method, which is indeed protected on the TreeView itself.  You should instead be using an individual node's TTreeNode.Expand() method or TTreeNode.Expanded property, which are both public.

[jamie]

Expand accepts a Node. which indicates that it must expand at that node.

Did I miss something ?

Yes, you are. You are looking at the TCustomTreeView.Expand() method, which is indeed protected on the TreeView itself.  You should instead be using an individual node's TTreeNode.Expand() method or TTreeNode.Expanded property, which are both public.

Ok, Sorry, my mistake.

Thanks for the heads up.