title: tridium niagara 4 dropdown in baja.jar
body: <p>There is one software Tridium Niagara 4, which is private not opensource. This software put everything secure. No documentation for development troubleshooting and the documents are also clumsy, they are not in simple words. </p>
  
  <p>For non programmers it is miry pit. I have been given the task for GPIO port on one device. We have our own API in .cpp , which is tested and is working.</p>
  
  <p>Backend is working fine with all native callbacks but now we need to create GUI for GPIO. And we need combobox instead of textblock so we can restrict user from entering random values.</p>
  
  <p>We tried with following command but not working any idea?</p>
  
  <pre><code>@NiagaraType
  @NiagaraProperty (
    name = "direction",
    type = "bajaui:BListDropdown",
    defaultValue = "in"
  )
  </code></pre>
  
  <p>This software provides info from Tridium(name of the company) only, and they call the developers who use their software - "Niagara Developer". I hope they will give suggestions or answer on stack overflow sites.</p>