The code goes as follows:
private void Form1_Load(object sender, EventArgs e)
{
comboBox1.SelectedIndex = 0;
string[] items = new string[comboBox1.Items.Count];
for (int i = 0; i < comboBox1.Items.Count; i++)
{
items[i] = comboBox1.Items[i].ToString();
treeView1.Nodes.Add(items[i]);
}
}
Now I want to add child node to the selected node in combobox.
When I add child for root node - 2 it goes at the bottom, as displayed in the picture above.
private void AddChildNodeButton_Click(object sender, EventArgs e)
{
treeView1.Nodes.Add(comboBox1.Text, textBox1.Text);
}
To add to a selected note, use the SelectedNode method, and instead of using the combox1 dropdown, you can just select the node in the tree, like below:
private void AddChildNodeButton_Click(object sender, EventArgs e)
{
treeView1.SelectedNode.Nodes.Add(textBox1.Text)
}
If you want to use the combobox, it will be a little slower since you first have to search the treeview using that text
TreeNode[] tns=treeView1.Nodes.Find(comboBox1.Text, true);
if (tns.Length > 0)
{
treeView1.SelectedNode = tns[0];
treeView1.SelectedNode.Nodes.Add(textBox1.Text)
}
Found the answer myself, this works for me.
treeView1.Nodes[comboBox1.SelectedIndex].Nodes.Add(textBox1.Text);
to next question, keeping the data save.
I want to add selected item in combobox to treeview and remove selected item in combobox.
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