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Tabs in App designer

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Niels Hawinkel
Niels Hawinkel am 5 Jan. 2024
Beantwortet: Ramtej am 9 Jan. 2024
I want to make an app that has different Tabs in it, each containing a Listbox. However, with my code I can only seems to access the first tab. For Instance, the line "handles.listRuns.String = ["Insert scenario here"];" does seem to work for the first listbox, but "handles.listRuns2.String = ["Insert scenario here"];" doesnt seem to work for listbox2 (=listRuns2).
  2 Kommentare
Voss
Voss am 5 Jan. 2024
Can you upload your .mlapp file as an attachment (using the paperclip button)?
Niels Hawinkel
Niels Hawinkel am 9 Jan. 2024
The lines I'm talking about are 88-90

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Ramtej
Ramtej am 9 Jan. 2024
Hi Niels,
I understand that you are not able to access the Listboxes in other tabs. I assume you have migrated the app from GUIDE to App Designer.
The object "handles.listRuns" is of type "UIControlPropertiesConverter", you can set the string to display and value using "String" and "Value" property. I can see that "handles" structure does not contain "listRuns_Int" field.
You are creating a new field "listRuns_Int" of type struct in "handles" by executing the below lines in your code.
handles.listRuns_Int.String = ["Insert here"];
handles.listRuns_Int.Value = 1;
However, you can access the Listbox "listRuns_Int" using "app" object in your callback function as shown below.
app.listRuns_Int.Items = {"Insert here"};
app.listRuns_Int.Value = {"Insert here"};
Since, I do not have a clear idea on why "handles" object does not contain "listRuns_Int" field. I suggest you to refer the below docmentation for the detailed instructions on how to write callback functions and update component properties.
Hope this resolves you query!

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