Adding a child node to specific node in VB.NET

Question

I have a treeview on my form and in that treeview there are screen resolutions categorized to their type (categories: 16:9, 16:10, 4:3 etc...) and there are one last node which is labelled "Custom".

I would like to enable users to add their own resolutions by typing numbers in textboxes and clicking a button.

I have successfully written the code to add nodes but everytime i add a custom resolution, it creates a new root node called "Custom". How can I make them go under one "Custom" node?

Here's my code:

Form1.TreeView1.Nodes.Add("Custom").Nodes.Add(TextBox1.Text + "x" + TextBox2.Text)

Fabio · Accepted Answer · 2014-01-09 02:10:05Z

1

Remove first .Add word in your code:

Form1.TreeView1.Nodes("Custom").Nodes.Add(TextBox1.Text + "x" + TextBox2.Text)

or make a more safely code

Dim customnode as TreeNode = Form1.TreeView1.Nodes("Custom")
If customnode IsNot Nothing Then
    customnode.Nodes.Add(TextBox1.Text + "x" + TextBox2.Text)
End If

edited Jan 9, 2014 at 2:10

answered Jan 9, 2014 at 2:01

Fabio

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1 Comment

user1402902 Over a year ago

Apparently the the name of that node wasn't "Custom" but "Node22". So when I renamed "Custom" in your code to "Node22", it worked great!

Gandy · Accepted Answer · 2014-01-09 02:01:54Z

0

Form1.TreeView1.Nodes.Find("Custom", True).First.Nodes.Add(TextBox1.Text + ":" + TextBox2.Text)

The Find is used to recursively search for the Node with the key "Custom".

answered Jan 9, 2014 at 2:01

Gandy

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