Populaing filenames with a coesponding checkbox.

[jrknox1977]

Scenario:

• Create an array of filenames from a directory (no problem)

• Dynamically create an 'entry' (sg.Text(), or sg.Checkbox() maybe?) for each discovered filename with a checkbox in front.
  (Confused on how to use pysimplegui to achieve this.)

• The Checkbox() needs to be 'connected' to the filename they are next to as well. ( I know that Checkbox() can have a label, but don't know if I can dynamically create the Checkboxes with the labels either)

• user selects any number of the Checkboxs and then is able to click a button which creates an array of either the filenames themselves or an array of indexes that can be passed to a function to perform actions on the files.

I looked through the demos, but I have found anything that does this kind of dynamic populating of the form in a straight forward way.

I love the module and am sure I am just missing something.

Thanks!

[MikeTheWatchGuy]

Have you created any source code you can share or are you at the design phase and haven't done anything beyond the design you've submitted here?

There is not way, at this time, to dynamically change the text of a checkbox..... BUT, there is a way to create what looks like dynamic checkboxes using a Text and a Checkbox Element together. Set the checkbox text to nothing ('') and place it next to a Text Element that will act as the checkbox text. Then you'll be able to update the text element on the fly.

The best way to work with PySimpleGUI is to assume that Text Elements are output only. That is to say you do not use them as variables. Keep all variables in your code as variables. Then, when you're ready to display them, update your form with the values.

The connection you talk about between filename and checkbox would be within your own code. You keep the connection information between a checkbox and what filename it is representing. That's how I would approach it.

Let's say you show 50 file names to the user next to 50 checkboxes. You would "Read" the form to get which checkboxes are checked 0-49. If checkbox 2 is checked, you look in your list of filenames at index == 2 to see what filename that checkbox represents. I wouldn't try to do anything clever like saving the filename as the key to the checkbox. Keep the GUI separate from your data as much as possible. Don't rely on the checkbox to tell you what filename it represents for example.

I don't yet fully understand the problem you're solving so I could have some of this wrong.

[jrknox1977]

Thanks for getting back with me!

So I think what I am am trying it as simple as:

`installed_mods = ["Alternate Start", "A Quaility World Map","Other Mod...."]
for mod in installed_mods:
[sg.Checkbox(''), sg.Text(mod)]

How do I populate/update these "rows" to the form?

[MikeTheWatchGuy]

Try this:

import PySimpleGUI as sg

sg.SetOptions(element_padding=(0,1))

lines = [[sg.CB('', key=x), sg.T('Filename {}'.format(x))] for x in range(10)]
layout = [[sg.T('Test of file list', font='Any 15')],
          *lines,
          [sg.OK()]
          ]

form = sg.FlexForm('files')

button, values = form.LayoutAndRead(layout)

print(values[5])

Notice how you can use keys in a way that looks like you're reading an array with an offset.

The code will print 'True' if you've checked the checkbox next to "Filename 5"

[jrknox1977]

Excellent that gets us to here:

Next task: being able to tell which boxes are checked and which ones are not.

[MikeTheWatchGuy]

Ah, telling which are checked is easy!

I edited the post with with the code earlier. You grabbed the old code quickly!

The new code has this bit of magic added to the Checkbox call:
key=x

It's looking great.

Hard to believe how short your code is! Very nicely done.

[jrknox1977]

Moving to email....

[MikeTheWatchGuy]

Perhaps close this one now that you've solved the filename / checkbox problem?

[MikeTheWatchGuy]

Just hit me..... Have you thought about using a Listbox instead of checkboxes? This will allow you to easily update the values on the fly and allow the user to select multiple items from the list.

Check out the file Demo_Script_Launcher for an example of something like you're doing. This demo program mistakenly allows you to select multiple items using the control key.

Other select modes made it so that you can select multiples and don't need the control key to do it. You simply click on as many as you wish. I use this in my personal launcher application.

This may work out better than the checkboxes.

[MikeTheWatchGuy]

Can we close this one?

[jrknox1977]

Yes. 😊 thank you. Sent from a device that is not my desktop.

…

On Sep 18, 2018, at 2:44 PM, MikeTheWatchGuy ***@***.***> wrote: Can we close this one? — You are receiving this because you modified the open/close state. Reply to this email directly, view it on GitHub, or mute the thread.