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ILovephp123 ILovephp123 - 9 months ago 79
C# Question

Select root node by text and add child

I want to add a child node to a root node.

The root node's text is "Hello".

How can I go about adding "hi" as a child node, to the root node, "Hello"

I tried this

databaseInfoTreeView.SelectedNode = "Hello";

But I get the error

Cannot implicitly convert type 'string' to

On this line
databaseInfoTreeView.SelectedNode = "Hello";

Why doesn't it work, and how do I do this correctly?

enter image description here


You can't select tree nodes using a text. You need to get a reference for the "Hello" node some other way. You could:

1) Get the reference when you create the node and then add a child:

var root = databaseInfoTreeView.Nodes.Add("Hello");

// Then if you want you can even set it as the current selected node
databaseInfoTreeView.SelectedNode = root;

2) Get the reference directly from the node index:

var root = databaseInfoTreeView.Nodes[0];

3) Manually select the node on the treeview control, on you user interface and then add a node programatically:

if (databaseInfoTreeView.SelectedNode != null)

Hope that helps...