Error while evaluating UI control callback

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NIDHI MAVANI
NIDHI MAVANI 2021-3-22
回答： Walter Roberson 2021-3-22
Why do I keep getting this error whenever i try to insert my value in my gui.
Reference to non-existent field 'sd'.
Error in test2>edit1_Callback (line 151)
handles.sd*sd;
Error in gui_mainfcn (line 95)
feval(varargin{:});
Error in test2 (line 42)
gui_mainfcn(gui_State, varargin{:});
Error in
matlab.graphics.internal.figfile.FigFile/read>@(hObject,eventdata)test2('edit1_Callback',hObject,eventdata,guidata(hObject))
Error while evaluating UIControl Callback.

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回答（1 个）

Walter Roberson
Walter Roberson 2021-3-22
Your figure has no permanent graphics object named sd and you did not (permanently) store a value into handles.sd before the point where you tried to use it.
http://matlab.wikia.com/wiki/FAQ#How_can_I_share_data_between_callback_functions_in_my_GUI.28s.29.3F

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