Form with data like csv in Tinydb

[linkromain]

Hi,

I search to create an form where the entry data display like a csv(column, line, cellul) to the screen and in Tinydb.

below I join a model :

[TIMAI2]

and your query is ?

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[linkromain]

@TIMAI2

and your query is ?

Indeed, I forgot to lets my answer.

My question is what is the best process to successfully implement what I presented earlier?

I try with the join project but each entry is independant and cannot be in doublesaveListToTDB.aia (4.6 KB)

[TIMAI2]

Try like this:

TwoColumnsTinydb.aia (5.7 KB)

BLOCKS

SCREEN

[edit minor update to blocks and aia]

[dora_paz]

Try this. I used listview instead of listpicker

saveListToTDB_1.aia (4.2 KB)

[linkromain]

Thanks, I see that now.

[linkromain]

I think this is what I need.
If column 2 contains only numbers, can I sum all the entries from another screen?

[TIMAI2]

See the additional; blocks in the procedure below:

This stores the sum of column2 to a tinydb tag, so you can call this from another screen.

AIA and blocks updated in my previous post to reflect this, plus loading of columns on initialisation.

[linkromain]

Thanks for this.

I need to see how add the second screen and call the tinydb now.

[TIMAI2]

@linkromain

I need to see how add the second screen

Consider using virtual screens using the visibility of vertical or horizontal arrangements, then you only have to work with one screen.

[linkromain]

TwoColumnsTinydb_mod.aia (7.1 KB)
First, I would like to duplicate the screen 1 and get the sums data in a independant screen.

In the modified project, I added labels and screen to try to explain the finallity.

[TIMAI2]

It is entirely up to you, of course, but you may want to read this:

Use different screens wisely

• Before starting to create another screen, first you should think about is it really necessary? 
• See also Building apps with many screens and SteveJG's post about advantages/disadvantages, because in only one screen you also can use vertical arrangements to simulate different screens, just set the arrangements to visible = true/false as needed... 
• See also Martyn_HK's example about how to use Tabs in App Inventor and another example from Cyd. and my Tabbed Screens Demo

If you decided to use different screens, then you should switch them correctly, else you will run out of memory after a while...      
The recommended method of switching screens in App Inventor

(Thanks Taifun)

 

Also see demo: multiscreen.aia

 

and

• HOWTO: Transfer data between screens using TinyDB Demo
• HOWTO: Transfer data between screens using Start Value Demo

[linkromain]

Thanks.

When I can, I read this.