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
Solved

TreeView control....does a child node have children?

Posted on 2004-10-08
6
267 Views
Last Modified: 2010-04-15
When I select a node..........how can I determine programmatically if the node has children?
0
Comment
Question by:knowlton
  • 3
  • 2
6 Comments
 
LVL 5

Author Comment

by:knowlton
ID: 12261203
I guess just a COUNT of how many children would be best.....and if the COUNT is > 0 I can make a decision based on that.
0
 
LVL 5

Assisted Solution

by:Tertioptus
Tertioptus earned 250 total points
ID: 12261724
try this, say if your TreeView control name is treeView1, and it has at least one node, then this line of code should work as is.  Of course you can modify it your on configuration.:

treeView1.Nodes[0].Nodes.Count;



Basically you have to access the collection of nodes with a single node: i.e.  
TreeNode objNode = new TreeNode;
// population code
objNode.Nodes.Count
0
 
LVL 10

Accepted Solution

by:
Hans Langer earned 250 total points
ID: 12273723
Hi, Try this code,

this.treeView1.AfterSelect += new System.Windows.Forms.TreeViewEventHandler(this.treeView1_AfterSelect);
            
private void treeView1_AfterSelect(object sender, System.Windows.Forms.TreeViewEventArgs e)
{
      if (e.Node.Nodes.Count > 0)
            MessageBox.Show("This Node Have " + e.Node.Nodes.Count.ToString() + " Nodes");
      else
            MessageBox.Show("This Node Have Not ChildNodes");
}

GL
0
Free Tool: Subnet Calculator

The subnet calculator helps you design networks by taking an IP address and network mask and returning information such as network, broadcast address, and host range.

One of a set of tools we're offering as a way of saying thank you for being a part of the community.

 
LVL 5

Author Comment

by:knowlton
ID: 12346429
Expert GERENTE:

Something about your name kept tickling the back of my mind.

"GERENTE" means "Manager" in Portuguese!  So are you a manager?

I spent a few years down in Sao Paulo, Brazil.

Mystery solved for my tireless subconscience.

:)

Tom
0
 
LVL 10

Expert Comment

by:Hans Langer
ID: 12346660
GERENTE means "Manager" in spanish too,
Im Engineer, not manager, and I live in Chile (South America).
;)
0
 
LVL 5

Author Comment

by:knowlton
ID: 12346690
Cool!

or rather,

Que Otimo!

Tom  :)
0

Featured Post

Free Tool: IP Lookup

Get more info about an IP address or domain name, such as organization, abuse contacts and geolocation.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

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

Suggested Solutions

Title # Comments Views Activity
Hey!! 5 37
Cant save 3D 4 22
C# Desktop Application 3 54
LINQ Select all records by MAX data syntax help 1 17
It was really hard time for me to get the understanding of Delegates in C#. I went through many websites and articles but I found them very clumsy. After going through those sites, I noted down the points in a easy way so here I am sharing that unde…
The article shows the basic steps of integrating an HTML theme template into an ASP.NET MVC project
With Secure Portal Encryption, the recipient is sent a link to their email address directing them to the email laundry delivery page. From there, the recipient will be required to enter a user name and password to enter the page. Once the recipient …
A short tutorial showing how to set up an email signature in Outlook on the Web (previously known as OWA). For free email signatures designs, visit https://www.mail-signatures.com/articles/signature-templates/?sts=6651 If you want to manage em…

809 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