I’m having trouble converting a fairly simple React concept into Dash – I need to set the state before AND after a long running task. I have a dashboard where a button initiates “long running task”, the completion of which populates the dashboard. I would like to display a loading message in the mea…

As a quick workaround, your global dash app container get the CSS class ._dash-loading-callback when updating its content. You might have look at 📣 Dash Loading States to see if you could use this. Otherwise, if I understand your app correctly, I would create following callbacks: Set_loading_stat…

You pretty much have described what I have currently implemented. As you mentioned, 1 + 3 have to be combined. An issue I have found with having 1 and 2 is that I am unable (I think) to control the order that the callbacks fire, so what I encounter is that once the start button is clicked the loadin…

I get it now. IMHO, what you are looking for is: “how to define the fire order for callbacks having the same trigger” (I assumed they would have been fired simultaneously). I’ve looked a bit around and it seems that if two callbacks are to be triggered “simultaneously”, there is no way to define wh…

Note: this is a WIP: I just realize we’re facing the same issue (two callbacks fired at the same time) Here is a logic way that could work: [Screenshot%20from%202018-11-07%2010-23-49] You have to create a hidden placeholder_div. When you click on the button, you will update the content of this…

In case it is useful for somebody, I managed to workaround circular dependencies to implement a progress bar during the processing of the data. In my case, the final data is a table inside a Div, enclosing_div. My solution is based on displaying the progress bar in the same Div as the final table: t…

Pattern for avoiding circular dependency in Dash callbacks

Dash Python

MM-Lehmann May 7, 2020, 10:07am 6

This is not working for me. see Multiple Callbacks for single inputs - not all are firing

1 Like

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Pattern for avoiding circular dependency in Dash callbacks

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