how write in edit text and send result to another edit text without pushbutton? PLEASE

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Erwin Avendaño 2017-11-4

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https://ww2.mathworks.cn/matlabcentral/answers/365028-how-write-in-edit-text-and-send-result-to-another-edit-text-without-pushbutton-please

编辑： Walter Roberson 2017-11-4

I have a very simple gui program and I would like to add as a luxury that when in edittext enter the function in the other output edittext, automatically write the function already integrated. (my program integrates but, I want you to integrate without using a pushbutton) Can you?

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Answer 1

Walter Roberson 2017-11-4

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You can set a Callback function on the uicontrol('style','edit'). It will be called when the user presses return in the edit box or clicks outside the box.

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Erwin Avendaño 2017-11-4

but I mean that for example the user in editext1 enters x and that automatically when entering x in edittext2 print x ^ 2/2 without the need for the user to press push button to integrate it Can you do that? sorry

Walter Roberson 2017-11-4

编辑：Walter Roberson 2017-11-4

在 MATLAB Online 中打开

function edittext2_Callback(hObject, event, handles)
  formula = strtrim( get(hObject, 'String') );
  if isempty(formula); return; end
  form_expr = sym(formula);
  form_int = int(form_expr);
  form_int_char = char(form_int);
  set(handles.text3, 'String', form_int_char);   %send it to output location