Prevent redrawing of view on specific inputs

Feature Requests
1

Is there an option to prevent the view from being rebuilt on the change of an input?

We have many inputs, only a few of those are used for the view. Whenever an input field is changed, the view is redrawn. I find this rather distracting and would like the view to remain as it is on inputs in certain fields, while inputs in other fields should redraw the view.

2 Likes
2

Hi @thomasvdl ,

Unfortunately there are only two options:

  • duration_guess < 3: This causes the view visible to refresh after every trigger event.
  • duration_guess > 3: This presents a button in the right-bottom corner with a default label “Update”. This label can be defined with the argument update_label.

E.g.

@vkt.ImageView(“My image view”, duration_guess=5, update_label=”Render image”)
def get_image_view(self, params, **kwargs):
    …
    return vkt.ImageResult(…)
3

Will mark this as a feature request to be able to only recalculate view when changing specific inputs

1 Like
4

In general it would be nice to be able to pin a view to specific input fields

5

Do I understand it correctly that in this case you would like to annotate for which params the view sould be redrawn?

6

Yes in my case default behavior should be reload whenever any param changes.
However in many cases a list of keys (param keys) could be provided which keys should be checked for changes.

Lets say an app has 5 Pages/Steps. The first view is a static PDF view. It should never reload, only load once.
A simple summary view, maybe required 2-3 input fields, so all others are relevant.
While some pages might require all but a few to generate.

So in short:
Optionally give a list of keys to each View of which params to check.
Empty list means, don’t reload.
None means: check all params (current behavior)

8

Sounds good to add a list of params to check, but I think it would mean it’s not compatible with earlier versions. Therefore I would add a list of params to not check, or add an extra attribute in the parametrization.

9

I agree it would make more sense to specify which params should not cause a reload. The default behaviour is that any change in params causes a reload, so I think it makes sense to specify the exceptions to the rule (and not the other way around).

This would also enable things like not causing a reload upon questions with a vkt.Chat. This would be really useful for us!

1 Like