Tree View child nodes error

Question

1.00/5 (1 vote)

See more:

When i use the following code in c# it gives error

parent.ChildNodes.Add(child);
nParent.PopulateOnDemand = true;

Error 15 'System.Windows.Forms.TreeNode' does not contain a definition for 'ChildNodes' and no extension method 'ChildNodes' accepting a first argument of type 'System.Windows.Forms.TreeNode' could be found (are you missing a using directive or an assembly reference?)
Error 3 'System.Windows.Forms.TreeNode' does not contain a definition for 'PopulateOnDemand' and no extension method 'PopulateOnDemand' accepting a first argument of type 'System.Windows.Forms.TreeNode' could be found (are you missing a using directive or an assembly reference?)

Help Me.............

Posted 9-Aug-13 5:59am

NoorKaximi

Updated 9-Aug-13 6:04am

v2

Add a Solution

2 solutions

Solution 2

According to MSDN, the property is called Nodes [^]and not ClildNodes

http://msdn.microsoft.com/en-us/library/system.windows.forms.treenode.aspx[^]

Posted 9-Aug-13 6:03am

Manas Bhardwaj

Comments

NoorKaximi 9-Aug-13 12:13pm

What is the solution for 2nd code error?

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)

OriginalGriff · Accepted Answer · 2013-08-09T06:00:00

Solution 1

Try:

C#

parent.Nodes.Add(child);

Posted 9-Aug-13 6:00am

OriginalGriff

Comments

Manas Bhardwaj 9-Aug-13 12:04pm

You beat me. +5!

OriginalGriff 9-Aug-13 12:09pm

Nah - I just typed faster! :laugh:

NoorKaximi 9-Aug-13 12:16pm

What is the solution for error in 2nd code?

OriginalGriff 9-Aug-13 12:21pm

There isn't one - PopulateOnDemand is a System.Web.UI.TreeNode property, not a System.Windows.Forms.TreeNode property. If you are using Winforms, you don't have the property. If you are doing a website, why have you got Winforms controls in there?
http://msdn.microsoft.com/en-us/library/system.web.ui.webcontrols.treenode.populateondemand.aspx

NoorKaximi 9-Aug-13 12:24pm

i m working on database software not on any website.....

OriginalGriff 9-Aug-13 13:59pm

Then you can't use the PopulateOnDemand property, because there isn't one!