[RESOLVED] TreeView Problem...

I'm using the good ol treeview and I can get everything else to seem to work with it except i want to make 1 of the nodes a weblink so when it's clicked it just opens up the page.

I have the code attached to a label right now and it works great... it opens up the default browser and goes right to that page w/ no problem, I only have the problem when I attach it to the node from treeview. Here is what i'm working with...

Code:

---

Private Sub TreeView1_NodeClick(ByVal Node As MSComctlLib.Node)
  If Node = "gohome" Then
    FilePath = "hxxp://xxx.site.com"
    OpenFileDefault hwnd, "open", FilePath, vbNullString, _
    vbNullString, 1
  End If
End Sub

---

Wasn't quite sure how I would go about fixing this problem. Didn't know if it was b/c of having "MSComctlLib" in that code or not.

Any help is appreciated.

Hi.
You must use the API function ShellExecute.

1st, declare the API:

Code:

---

Private Declare Function ShellExecute Lib "shell32.dll" Alias "ShellExecuteA" (ByVal hwnd As Long, ByVal lpOperation _
As String, ByVal lpFile As String, ByVal lpParameters As String, ByVal lpDirectory As String, ByVal nShowCmd As Long) As Long

---

Then, on node click event:

Code:

---

Private Sub TreeView1_NodeClick(ByVal Node As MSComctlLib.Node)
dim ret&
  If Node = "gohome" Then
    FilePath = "hxxp://xxx.site.com"
    ret = ShellExecute(Me.hwnd, "OPen", FilePath, "", "", 1)
  End If
End Sub

---

Tell me if it works.
;)

No Sorry... It didn't help any. I already had this code entered

Code:

---

Private Declare Function OpenFileDefault Lib _
"shell32.dll" Alias "ShellExecuteA" (ByVal hwnd As Long, _
ByVal lpOperation As String, ByVal lpFile As String, _
ByVal lpParameters As String, ByVal lpDirectory As String, _
ByVal nShowCmd As Long) As Long

---

which is pretty much the same thing. I did try it though. Tried to swap out my old code for yours.

I've tried this code and it worked:

Code:

---

Private Declare Function ShellExecute Lib "shell32.dll" Alias "ShellExecuteA" (ByVal hwnd As Long, ByVal lpOperation _
As String, ByVal lpFile As String, ByVal lpParameters As String, ByVal lpDirectory As String, ByVal nShowCmd As Long) As Long

Private Sub TreeView1_Click()
Dim ret&
Dim filepath
    filepath = "http://www.google.com"
    ret = ShellExecute(Me.hwnd, "OPen", filepath, "", "", 1)
End Sub

---

It must work with yours. Try making Breakpoints to see where it seek those instructions.
:thumb:

Thanx... it worked. Still don't know what the problem was about the code but its all good now.


Also I was wondering what kinda code would be involved in making it so when i opened my program the whole treeview would be collapsed? Since everytime i open it they are all opened as far as they can go...

Tried searching but didn't find the code/help i needed

Try this (it only collapse one level, but it can help in some way)

Code:

---

me.Treeview.Nodes(1).Expanded = True

---

If you find someway to expand all rows tell me, ok?
:bigyello:

To Collapse use .Expanded = False, to Expand .Expanded = True.
You can use a recursive Call like this to Expand/Collapse all nodes:

Code:

---

Private Sub ExpandTree(ByVal pNode As MSComctlLib.Node, pCollapse As Boolean)
Dim oChildNode As Node
   
    pNode.Expanded = pCollapse
    Set oChildNode = pNode.Child
    Do Until oChildNode Is Nothing
        oChildNode.Expanded = pCollapse
        ExpandTree oChildNode, pCollapse 'Recursive Call
        Set oChildNode = oChildNode.Next
    Loop
End Sub

---

Collapse all:

Code:

---

ExpandTree TreeView1.Nodes(1), False

---

Expand all:

Code:

---

ExpandTree TreeView1.Nodes(1), True

---

Couldn't get either of your code to work right ...

jcis I had the best luck w/ your code but i couldn't get it to collapse more than the 1st child. This is kinda how it looks now...

- Main1
| - Second
| Third
| - Second
| Third
-Main2
| -Second
| Third
| -Second

and so on...

I wanted to make it collapse on Form_Load to look like this

+Main1
+Main2
+Main3

etc...

I will try to work w/ the code provided since y'all were nice enough to help out.
Maybe i'm just not seeing what I should be, I have been staring at this code for prolly a couple of hours. And I should take a break.

I thought your TV had only 1 Root Node. Try this:

Code:

---

Private Sub ExpandTree(pCollapse As Boolean)
Dim lNode As Node
   
    For Each lNode In TreeView1.Nodes
        lNode.Expanded = pCollapse
    Next
    Set lNode = Nothing
End Sub

---

lol... now i'm getting this error

I added the ExpandTree TreeView1.Nodes(1), False line at the end of the Form_Load after it would load the TV

That error message is pretty self explained, call the new Sub with 1 parameter:

Code:

---

ExpandTree False

---

PERFECT! PERFECT! PERFECT!

Thanks man. I'm still kinda new at VB and i'm not to sure about a lot of things yet w/ all the coding.

Although I have been messing around w/ VB6 for a few years i've only begun to scratch the surface with problems

I'm sure that i'll be using this site a lot