How? - Single Left Mouse Click on Node Text to Expand/Collapse Node

[Bruce Halpern]

VB WinForms TreeViewAdv.

To expand/collapse nodes, a double left mouse click is needed on the node text.  How can I change that to a single left mouse click?

I don't know if it is called "Node Name" or "Node Text" but it is the text you view when looking at the node, to the right of the plus/minus.

Thank you for your help in this matter.

[Sweatha Bharathi]

Bruce Halpern ,

Your requirement, "Single Left Mouse Click on Node Text to Expand/Collapse Node," can be achieved by using the mouseclick event. We have provided a sample based on your requirement. Please review the sample and let us know if you have any further concerns. See the code snippet below:

              Private Sub TreeViewAdv1_MouseClick(ByVal sender As Object, ByVal e As MouseEventArgs)

                                           If e.Button = MouseButtons.Left Then

                                                          Dim clickedNode = treeViewAdv1.GetNodeAtPoint(e.Location)

                                                          clickedNode.Expanded = Not clickedNode.Expanded

                                           End If

                             End Sub

             

Attachment: Vb_Sample_bcf81d1.zip

[Bruce Halpern]

Sweatha Bharathi,

Thank you very much for your reply.

It worked, although I had to change the first line to:

Private Sub TreeViewAdv1_MouseClick(sender As Object, e As MouseEventArgs) Handles TreeViewAdv1.MouseClick

Thank you.

[Sweatha Bharathi]

Bruce Halpern ,

If you are satisfied with our response, please mark it as an answer. Otherwise, please let us know if you have any further queries on this. We are happy to help you😊.