C# Treeview checking if node exists

Question

I\'m trying to populate a treeview from an XmlDocument. The Root of the tree is set as \'Scripts\' and from the root the next level should be \'Departments\' which is within the

Answer 1

You can do something like this:

TreeNode parentNode = t1.Parent;
if (parentNode != null}
{
    if(parentNode.Nodes.Cast().ToList().Find(t => t.Text.Equals(node["DEPARTMENT"].InnerXml) == null)
    {
        //Add node
    }
}
else
{
    bool isFound = true;
    if (treeView1.Nodes.Cast().ToList().Find(t => t.Text.Equals(node["DEPARTMENT"].InnerXml) == null)
    {
        isFound = false;
    }

    if(!isFound)
    {
        //Add node
    }
}