?
Solved

VB.net TreeView Gather checked nodes

Posted on 2014-12-28
2
Medium Priority
?
957 Views
Last Modified: 2014-12-28
Hi

I have TreeView with the CheckBoxes property set to True
After the user has checked various nodes, what VB.net code
would I use to gather the text of only these checked nodes?
0
Comment
Question by:Murray Brown
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
2 Comments
 
LVL 86

Accepted Solution

by:
Mike Tomlinson earned 2000 total points
ID: 40520519
You need a recursive routine to traverse the nodes collections of the treeview and gather the checked nodes.

Here's one possibility:
Public Class Form1

    Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
        Dim checked As List(Of TreeNode) = GetCheckedNodes(TreeView1)
        For Each node As TreeNode In checked
            Debug.Print(node.FullPath)
        Next
    End Sub

    Private Function GetCheckedNodes(ByVal TV As TreeView) As List(Of TreeNode)
        Dim checked As New List(Of TreeNode)
        For Each node As TreeNode In TV.Nodes
            GetCheckedNodes(node, checked)
        Next
        Return checked
    End Function

    Private Sub GetCheckedNodes(ByVal tn As TreeNode, ByVal checked As List(Of TreeNode))
        If tn.Checked Then
            checked.Add(tn)
        End If
        For Each childNode As TreeNode In tn.Nodes
            GetCheckedNodes(childNode, checked)
        Next
    End Sub

End Class

Open in new window

0
 

Author Closing Comment

by:Murray Brown
ID: 40521379
Thanks very much
0

Featured Post

Technology Partners: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

A while ago, I was working on a Windows Forms application and I needed a special label control with reflection (glass) effect to show some titles in a stylish way. I've always enjoyed working with graphics, but it's never too clever to re-invent …
Parsing a CSV file is a task that we are confronted with regularly, and although there are a vast number of means to do this, as a newbie, the field can be confusing and the tools can seem complex. A simple solution to parsing a customized CSV fi…
In this video, Percona Solutions Engineer Barrett Chambers discusses some of the basic syntax differences between MySQL and MongoDB. To learn more check out our webinar on MongoDB administration for MySQL DBA: https://www.percona.com/resources/we…
Please read the paragraph below before following the instructions in the video — there are important caveats in the paragraph that I did not mention in the video. If your PaperPort 12 or PaperPort 14 is failing to start, or crashing, or hanging, …

649 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question