title: get text of the clicked node treeview C# winforms
body: <p>i have a difficulty selecting the text of a node in a treeview in c#,
  the idea is get the text of the clicked node,
  but the problem is that when i want to grab it like this</p>
  
  <pre><code>MessageBox.Show(treeView1.SelectedNode.Text);
  </code></pre>
  
  <p>the selected node is the previous selected, not the actual that i'm clicking, so how can i 
  select first the node that i'm clicking and then grab his text after that? the solution i think is call the original nodeclick handler before i grab the text but i don't know how to call it</p>