How to change text in a textbox from a pushbutton's callback?
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I have a GUI that is supposed to create a folder of shortcuts in a certain file. I would like to be able to have a button called "change destination" that, in its callback, should bring up a file directory and allows the user to choose a destination for the shortcut folder, then updates a textbox to show the new destination path.
function [OUT] = action(IN)
switch(IN)
case 'change'
dest = uigetdir;
set(handles.destination,'String',dest);
end
end
When I run the above (action() is called in my GUI's callback for the pushbutton 'change'), I get an error saying that destination (the handle for my textbox) is an undefined variable.
Can anyone tell me what I'm doing wrong? Thank you!
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rocketboyjka
2016-6-24
1) Try passing 'handles' into the function:
action(IN,handles)
2) It is also good practice (I don't think your function requires it, but I usually do it so as not to forget.) to end the function with an update to the handles structure. Typically:
guidata(hObject,handles)
2 个评论
rocketboyjka
2016-6-27
Is it still throwing an error? If so, can you post more than just the code snippet?
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