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File selection using uigetfile in an App in appdesigner

11 vues (au cours des 30 derniers jours)
Ranjan Sonalkar
Ranjan Sonalkar le 9 Déc 2021
I want to select a file using uigetfile and then display the name in a Edit Field (text) window, What is the best way to do this in Appdesigner?
I have done a similar function in an app that I had designed in Guide. There, I could call uigetfile as soon as I clicked in the Edit Field (text) window using the Callback function, in which I called the uigetfile function.
In appdesigner I see only ValueChanged and ValueChanging function for the Edit Field (text) Component, neither of which seems to tbe the right Callback to use.
  1 commentaire
Michael Van de Graaff
Michael Van de Graaff le 9 Déc 2021
Can you replace the edit field with a button? Then you can use a ButtonPusedCallback or whatever.
But you could do ValueChanged function, then put uigetfile in there, so when you edit (and i think you have to click away or press enter to satify conditions for ValueChanged) the text the same thing happens.

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Réponses (1)

Yongjian Feng
Yongjian Feng le 28 Jan 2022
uigetfile in general is put in a callback for a button, as mentioned by Michael. The ValueChanged callback of a textbox is not a good choice becaue:
  1. You need to change the value being shown in the textbox first
  2. You need to then click away or press Enter
Your callback is called only after both above happened.
Why do you want to link a uigetfile to a textbox?


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