PRB: Treeview Node Visible Property Still True When Not Viewable

• Microsoft Visual Basic Learning, Professional, and Enterprise Editions for Windows, versions 5.0, 6.0

SYMPTOMS

When a node of a Treeview control is scrolled out of view, the Visible property of the node is still True.

CAUSE

The Visible property of the node indicates that the node is open and visible as part of the tree. It does not indicate if it is viewable in the viewport.

STATUS

This behavior is by design.

MORE INFORMATION

Steps to Reproduce Behavior

1. Create a new Standard EXE project in Visual Basic. Form1 is created by default.



2. Select Components from the Project menu. Check the box for "Windows Common Controls," and click OK.



3. Add a Treeview control to Form1.



4. Double-click on Form1 to bring up the code window and add the following code to Form1:

   
         Option Explicit
   
         Private Sub Form_Load()
             TreeView1.Width = 2200   ' so that node 4 is unseen
             TreeView1.Indentation = 750
             TreeView1.Nodes.Add , , , "Node1"
             TreeView1.Nodes.Add 1, tvwChild, , "Node1-1"
             TreeView1.Nodes.Add 2, tvwChild, , "Node1-1-1"
             TreeView1.Nodes.Add 3, tvwChild, , "Node1-1-1-1"
             TreeView1.Nodes(1).Expanded = True
             TreeView1.Nodes(2).Expanded = True
             TreeView1.Nodes(3).Expanded = True
             DoEvents
             Debug.Print TreeView1.Nodes(4).Visible
         End Sub
    




5. Run the project. Note that Node 4's Visible property is True even though the node is not visible through the viewport.

Additional query words: kbDSupport kbDSD kbVBp kbVBp500 kbVBp600 kbCtrl kbTreeView

Keywords : kbGrpVB
Version : WINDOWS:5.0,6.0
Platform : WINDOWS
Issue type : kbprb