Editing code in code snippets panel

Anvil Q&A
1

I’m a total anvil and python newbie. Apologies, but I can’t work out how to edit the code snippets in the panel itself!

I know this is a very basic question. But thank you anyone for your help.
:flushed:

2

Last I checked, the snippets panel is read-only. So the intended usage is probably something like this:

  1. Identify the panel entry that most closely resembles the code you want to add to your program.
  2. Copy and paste that snippet into your code.
  3. Edit your pasted code.
3

Thank you.

But (and I know this is basic)…

  1. If I am in the ‘design’ mode I drag and drop a component into the design panel
    and then…
  2. I switch to code screen there is no reference to the button in the ‘code’ text.

I know the dragging component must have changed some code somewhere, but where is the code? Does the snippets panel have nothing to do with it?

4

It’s actually not in the code! There’s a separate file (extension: .yaml), which contains all the form’s layout information.

A base class for the Form is derived from this layout file, but it’s not visible anywhere. Because you can change the layout at will, in the IDE, the base class is computed immediately before use. It doesn’t stick around where you can see it.

Edit: this is in contrast to Embarcadero’s C++ Builder (and other tools), which attempt to edit your Form class directly. In those tools, adding a button does add it directly to the Form class’s code, where you can see it. (And accidentally screw it up!)

1 Like
5

D’oh!!

Thank you very much indeed. I really appreciate your help.