How to add a column dynamically to a repeating panel

[stucork]

a quick note that using append alone isn’t enough here.
Use either:

self.repeating_panel.items.append({'foo':'baz','message':'Error!'})
self.repeating_panel.items = self.repeating_panel.items

or

self.repeating_panel.items = self.repeating_panel.items  +  [{'foo':'baz','message':'Error!'}]

related topics:

Repeating panel to collect new information?

This is exactly the right way to do it. In fact, I would probably create one or more named dummy objects so that I can easily refer to them later. Something like this, perhaps: def __init__(self, **properties): self.init_components(**properties) # When the form is created, populate the RepeatingPanel self.data = [ ...your actual data... ] self.new_item = {"foo": "", "bar": ""} self.repeating_panel_1.items = self.data + [self.new_item] def save_new_item_click (se…

RepeatingPanel add_component method

The great thing about repeating panels: set the items with a list of length n --> n item_templates appear with the item property set The not so great thing about repeating panels: If the list is long or the item_template has many data_bindings the form can take a long time to load If the list changes, say by deleting an item or adding an item, then it can be a UI nightmare to have to repopulate the item_templates of a repeating_panel deleting an item works well: You don’t need…

---

regarding how to loop over the repeating panels - you have some optoins

for componet in repeating_panel.get_components():
  # do something

or use the __init__ method of the ItemTemplate itself

class ItemTemplate(ItemTemplateForm):
   def __init__(self, **properties):
     self.init_components(**properties)
     # now you have self.item
     if self.item['bar']:
        # do something...
        self.bar_component.visible = False

or set databindings on the components of ItemTemplate

---

you might also find this post helpful

Add text boxes to DataGrid Columns programatically

Hello and welcome, You may find the documentation on DataGrids helpful. If you want TextBox components inside the DataRowPanel so that the columns are consistent with the DataGrid, you could try this approach. grid=DataGrid() self.add_component(grid) # create some columns grid.columns = [ { "id": "A", "title": "Name", "data_key": "name" }, { "id": "B", "title": "Address", "data_key": "address" }, { "id": "C", "title": "Age", "data_key": "age" } ] # create some rows of data items = [ {…