Help Needed: Saving Data and Displaying by Date on Another Screen

Questions about Thunkable
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1

Hi everyone,

I’m working on an app in Thunkable and I’ve hit a roadblock. Here’s what I’m trying to achieve:

  1. Adatrogzites Screen:
  • Users input various data (e.g., weight, measurements, etc.).
  • The data is saved along with a specific date, creating a new entry for each submission.
  1. Reszletesadatok Screen:
  • I want to display the saved data for a specific date, so users can view detailed results for that particular entry.
  • Users should be able to scroll through entries saved on different dates.
  • When a user clicks on a specific date from the Data Viewer List (“Adatok” screen) on a previous screen, the app should navigate to the “Reszletesadatok” screen and display the corresponding data for that date.

Here’s my current setup:

  • I’m using a Local Data Source with multiple columns (e.g., Date, Weight, etc.).
  • I’ve tried using stored variables and row IDs to save and retrieve data, but I keep running into issues where the data either doesn’t save or doesn’t display properly.

The Problem:

  • When navigating to the Reszletesadatok screen, the labels often show “null” instead of the actual data.
  • I’m not sure if the issue is with how I’m saving data on the “Adatrogzites” screen or retrieving it on the “Reszletesadatok” screen.

Any guidance or examples of how to correctly save and retrieve data like this would be greatly appreciated! Thank you in advance for your help.

2

You’ll need to show screenshots of your blocks or a link to your project so that someone can advise you on how to fix it.

3

Hi!

Of course, thank you in advance for your help! Here is the link to the app: Thunkable

The setup idea for the app would be:

Data Entry Screen (Adatrögzítés screen):

This is where users enter their data (weight, chest size, waist size, hip size, thigh measurement, and date, which is very important). These inputs should be saved properly to be used later.

Data List Screen (Adatok screen):

This screen displays the entered data listed by date.

Users can select a specific date from this list to view its detailed data (which they entered previously).

Detailed Data Screen (Részletesadatok screen):

This screen shows the detailed data for the selected date that was chosen on the “Data List” screen.

Thanks again! :blush:

4

:slight_smile: can someone please help me out?

5

I would use app variables rather than stored variables. Stored variables are slow and only needed if you are not storing the values in a data source.

I only did two of your variables but this is how you would set up the create row block on the Adatrögzítés screen:

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6

Thanks so much for your help! I followed your suggestion and completed the rest of the setup.

If you have the time, I’d really appreciate some guidance on the Adatok and Részletesadatok screens as well, to display the entered data. I’ve been trying but haven’t had any success so far. :frowning:

Thank you again for your support!
Timi