How can i find root node in treeview

Question

0.00/5 (No votes)

See more:

Hi everybody,
I have a treeview in my windows application.

in this treeview users can add some root nodes and also some sub nodes for these root nodes and also some sub nodes for these sub nodes and so on.

I mean something like this :

Root1
     A
       B
         C
         D
          E  
Root2
     F
      G
.
.
.

Now my question is that if i have 'E' node what is the best way to find its first root node ('Root1')?

Posted 25-Nov-11 20:30pm

M_Mogharrabi

Add a Solution

2 solutions

Solution 2

C#

private TreeNode FindRootNode(TreeNode treeNode)
      {
          while (treeNode.Parent != null)
          {
              treeNode = treeNode.Parent;
          }
          return treeNode;
      }

Posted 21-Jun-13 4:55am

Jai Deo Tiwari

Comments

CHill60 21-Jun-13 12:14pm

That's essentially what Mehdi Gholam said a year and a half ago

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Mehdi Gholam · Accepted Answer · 2011-11-25T20:34:00

Solution 1

Each TreeNode has a Parent property just recurse upwards until the Parent is null.

Posted 25-Nov-11 20:34pm

Mehdi Gholam

Comments

Amir Mahfoozi 26-Nov-11 4:31am

+5 I agree with you