Now that we have our Treeview widget, we'll create a populate() method to populate it with data:
def populate(self, rows):
"""Clear the treeview & write the supplied data rows to it."""
The rows argument will take a list of the dict data types, such as what is returned from model. The idea is that the controller will fetch a list from the model and then pass it to this method.
Before refilling Treeview, we need to empty it:
for row in self.treeview.get_children():
self.treeview.delete(row)
The get_children() method of Treeview returns a list of every row's iid. We're iterating this list, passing each iid to the Treeview.delete() method, which, as you'd expect, deletes the row.
With the Treeview cleared, we can ...
