Update Dynamic Date Picker B, with Selected Date Picker A

Anvil Q&A
2

If the goal is to allow one subform to access a component in another subform, you need to pass a reference to that other subform into the original subform.

Something like:

    for i in range(self.trav):
      tf = TravellerForm(i + 1)
      ta = TravellerAges(i + 1, tf)

      #Creates Boxes for the TravellerAges
      self.cp.add_component(ta)
      #Creates Boxes for TravellerForm
      self.cp2.add_component(tf)

Then in your TravellerAges init, save that reference for future use:

  def __init__(self, tf, **properties):
    # Set Form properties and Data Bindings.
    self.init_components(**properties)

    self.tf = tf

Now in your TravellerAges code, self.tf refers to the other form that has the other date picker in it.