Dear all,
is it possible to implement a tree node so that double click on the tree
node does some operation and double click on "+" of this tree node only
expands tree without doing this operation. Unfortunately I only know
GetNodeAT(x,y), which don't differentiate "+" from the node.
Thanks in advance for your help.
Boni 5 1226
It is something like:
Protected Overrides Sub OnDoubleClick(ByVal e As System.EventArgs)
If SelectedNode.GetType() Is GetType(TreeNode) Then
CType(SelectedNode, TreeNode).Open()
End If
End Sub
Public Sub Open()
System.Diagnostics.Process.Start([Node Name Here])
End Sub
-------------------
The above code is out of a control I created that extends the TreeView. The
'[Node Name Here]' is obviously the selected node name
You'll have to play around with the code slightly, but it should give you a
general idea.
Crouchie1998
BA (HONS) MCP MCSE
There is no easy way to differentiate the "+" from the remaining zone, but
anyway the "+" requires only a single click, not a double click. The code
below shows how to override the WM_LBUTTONDBLCLK event:
Protected Overrides Sub WndProc(ByRef m As System.Windows.Forms.Message)
Const WM_LBUTTONDBLCLK As Integer = &H203
Dim bHandled As Boolean = False
Select Case m.Msg
Case WM_LBUTTONDBLCLK
Me.OnDoubleClick(EventArgs.Empty)
bHandled = True
End Select
If Not bHandled Then
MyBase.WndProc(m)
End If
End Sub
--
Best regards,
Carlos J. Quintero
MZ-Tools: Productivity add-ins for Visual Studio .NET, VB6, VB5 and VBA
You can code, design and document much faster.
Free resources for add-in developers: http://www.mztools.com
"Boni" <oilia@nospam> escribió en el mensaje
news:en****************@TK2MSFTNGP14.phx.gbl... Dear all,
is it possible to implement a tree node so that double click on the tree node does some operation and double click on "+" of this tree node only expands tree without doing this operation. Unfortunately I only know GetNodeAT(x,y), which don't differentiate "+" from the node.
Thanks in advance for your help.
Boni
Dear Carlos,
I am sorry, but I don't understand how to use your code.
As you wrote, I do need a double click for a "remaining zone", but only a
single click for +.
Thanks a lot,
Boni
"Carlos J. Quintero [.NET MVP]" <ca*****@NOSPAMsogecable.com> schrieb im
Newsbeitrag news:OO**************@TK2MSFTNGP15.phx.gbl... There is no easy way to differentiate the "+" from the remaining zone, but anyway the "+" requires only a single click, not a double click. The code below shows how to override the WM_LBUTTONDBLCLK event:
Protected Overrides Sub WndProc(ByRef m As System.Windows.Forms.Message)
Const WM_LBUTTONDBLCLK As Integer = &H203
Dim bHandled As Boolean = False
Select Case m.Msg
Case WM_LBUTTONDBLCLK Me.OnDoubleClick(EventArgs.Empty) bHandled = True
End Select
If Not bHandled Then MyBase.WndProc(m) End If
End Sub
-- Best regards,
Carlos J. Quintero
MZ-Tools: Productivity add-ins for Visual Studio .NET, VB6, VB5 and VBA You can code, design and document much faster. Free resources for add-in developers: http://www.mztools.com
"Boni" <oilia@nospam> escribió en el mensaje news:en****************@TK2MSFTNGP14.phx.gbl... Dear all,
is it possible to implement a tree node so that double click on the tree node does some operation and double click on "+" of this tree node only expands tree without doing this operation. Unfortunately I only know GetNodeAT(x,y), which don't differentiate "+" from the node.
Thanks in advance for your help.
Boni
You must derive a class TreeViewEx from Treeview and put that code inside.
What I meant is that since "+" requires only a single click, likely users
won´t double-click on that zone, you I would not worry about that, but if
you really want, the TVM_HITTEST message will tell you: http://msdn.microsoft.com/library/de...vm_hittest.asp
--
Best regards,
Carlos J. Quintero
MZ-Tools: Productivity add-ins for Visual Studio .NET, VB6, VB5 and VBA
You can code, design and document much faster.
Free resources for add-in developers: http://www.mztools.com
"Boni" <oilia@nospam> escribió en el mensaje
news:us**************@TK2MSFTNGP10.phx.gbl... Dear Carlos, I am sorry, but I don't understand how to use your code. As you wrote, I do need a double click for a "remaining zone", but only a single click for +. Thanks a lot, Boni
Dear Carlos, Dear Crouchie1998,
Thank you,
"Boni" <oilia@nospam> schrieb im Newsbeitrag
news:en****************@TK2MSFTNGP14.phx.gbl... Dear all,
is it possible to implement a tree node so that double click on the tree node does some operation and double click on "+" of this tree node only expands tree without doing this operation. Unfortunately I only know GetNodeAT(x,y), which don't differentiate "+" from the node.
Thanks in advance for your help.
Boni This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics |
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