Dropdown Events and Dynamic View Size

[Transistor]

I needed a filter on a tree so I did this:

• Add a text field above the tree, txtFilter.
• I have a binding on the tree's items property. In my case the tree is generated from a named query and the query has a parameter,
  `'%' + {../flexFilter/txtFilter.props.text} + '%'

See some of my other posts:

Altering Tree in Perspective Module

I wouldn't think it's possible easily. What I've done was add a small flex container above the tree with a handy filter and a + button and only enable the button if a valid selection is made on the tree. Operation is easily understood by the users.