MATLAB: Error using handle.handle/set Invalid or deleted object.

handlesMATLABpushbuttonreset

I'm a beginner in guide and I'm doing Fuzzy Inference System Mamdani where I load (pushbutton2 / reset button) and this error appears.
Error using handle.handle/set
Invalid or deleted object.
Error in tahfidz>pushbutton2_Callback (line 189)
set(handles.edit1,'String','')
Error in gui_mainfcn (line 95)
feval(varargin{:});
Error in tahfidz (line 42)
gui_mainfcn(gui_State, varargin{:});
Error in
matlab.graphics.internal.figfile.FigFile/read>@(hObject,eventdata)tahfidz('pushbutton2_Callback',hObject,eventdata,guidata(hObject))
Error while evaluating UIControl Callback
and this is my code
function varargout = tahfidz(varargin)
% TAHFIDZ MATLAB code for tahfidz.fig
% TAHFIDZ, by itself, creates a new TAHFIDZ or raises the existing
% singleton*.
%




% H = TAHFIDZ returns the handle to a new TAHFIDZ or the handle to
% the existing singleton*.
%
% TAHFIDZ('CALLBACK',hObject,eventData,handles,...) calls the local
% function named CALLBACK in TAHFIDZ.M with the given input arguments.
%
% TAHFIDZ('Property','Value',...) creates a new TAHFIDZ or raises the
% existing singleton*. Starting from the left, property value pairs are
% applied to the GUI before tahfidz_OpeningFcn gets called. An
% unrecognized property name or invalid value makes property application
% stop. All inputs are passed to tahfidz_OpeningFcn via varargin.
%
% *See GUI Options on GUIDE's Tools menu. Choose "GUI allows only one
% instance to run (singleton)".
%
% See also: GUIDE, GUIDATA, GUIHANDLES
% Edit the above text to modify the response to help tahfidz
% Last Modified by GUIDE v2.5 23-Oct-2019 10:43:20
% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name', mfilename, ...
'gui_Singleton', gui_Singleton, ...
'gui_OpeningFcn', @tahfidz_OpeningFcn, ...
'gui_OutputFcn', @tahfidz_OutputFcn, ...
'gui_LayoutFcn', [] , ...
'gui_Callback', []);
if nargin && ischar(varargin{1})
gui_State.gui_Callback = str2func(varargin{1});
end
if nargout
[varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:});
else
gui_mainfcn(gui_State, varargin{:});
end
% End initialization code - DO NOT EDIT
% --- Executes just before tahfidz is made visible.
function tahfidz_OpeningFcn(hObject, eventdata, handles, varargin)
% This function has no output args, see OutputFcn.
% hObject handle to figure

% eventdata reserved - to be defined in a future version of MATLAB











% handles structure with handles and user data (see GUIDATA)






% varargin command line arguments to tahfidz (see VARARGIN)
% Choose default command line output for tahfidz
handles.output = hObject;
% Update handles structure
guidata(hObject, handles);
% UIWAIT makes tahfidz wait for user response (see UIRESUME)
% uiwait(handles.figure1);
% --- Outputs from this function are returned to the command line.
function varargout = tahfidz_OutputFcn(hObject, eventdata, handles)
% varargout cell array for returning output args (see VARARGOUT);
% hObject handle to figure
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
% Get default command line output from handles structure
varargout{1} = handles.output;
function edit1_Callback(hObject, eventdata, handles)
% hObject handle to edit1 (see GCBO)

% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
% Hints: get(hObject,'String') returns contents of edit1 as text
% str2double(get(hObject,'String')) returns contents of edit1 as a double
edit1=str2double(get(hObject,'String'));
handles.edit1=edit1;
guidata(hObject,handles);
% --- Executes during object creation, after setting all properties.



function edit1_CreateFcn(hObject, eventdata, handles)
% hObject handle to edit1 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles empty - handles not created until after all CreateFcns called



% Hint: edit controls usually have a white background on Windows.



% See ISPC and COMPUTER.



if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
set(hObject,'BackgroundColor','white');
end
function edit2_Callback(hObject, eventdata, handles)
% hObject handle to edit2 (see GCBO)

% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
% Hints: get(hObject,'String') returns contents of edit2 as text
% str2double(get(hObject,'String')) returns contents of edit2 as a double
edit2=str2double(get(hObject,'String'));
handles.edit2=edit2;
guidata(hObject,handles);
% --- Executes during object creation, after setting all properties.
function edit2_CreateFcn(hObject, eventdata, handles)
% hObject handle to edit2 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles empty - handles not created until after all CreateFcns called
% Hint: edit controls usually have a white background on Windows.
% See ISPC and COMPUTER.
if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
set(hObject,'BackgroundColor','white');
end
function edit3_Callback(hObject, eventdata, handles)
% hObject handle to edit3 (see GCBO)

% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
% Hints: get(hObject,'String') returns contents of edit3 as text
% str2double(get(hObject,'String')) returns contents of edit3 as a double
edit3=str2double(get(hObject,'String'));
handles.edit3=edit3;
guidata(hObject,handles);
% --- Executes during object creation, after setting all properties.
function edit3_CreateFcn(hObject, eventdata, handles)
% hObject handle to edit3 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles empty - handles not created until after all CreateFcns called
% Hint: edit controls usually have a white background on Windows.
% See ISPC and COMPUTER.
if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
set(hObject,'BackgroundColor','white');
end
function edit4_Callback(hObject, eventdata, handles)
% hObject handle to edit4 (see GCBO)

% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
% Hints: get(hObject,'String') returns contents of edit4 as text
% str2double(get(hObject,'String')) returns contents of edit4 as a double
% --- Executes during object creation, after setting all properties.
function edit4_CreateFcn(hObject, eventdata, handles)
% hObject handle to edit4 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles empty - handles not created until after all CreateFcns called
% Hint: edit controls usually have a white background on Windows.
% See ISPC and COMPUTER.
if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
set(hObject,'BackgroundColor','white');
end
% --- Executes on button press in pushbutton1.
function pushbutton1_Callback(hObject, eventdata, handles)
% hObject handle to pushbutton1 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
a=readfis('tahfidz')
out=evalfis([handles.edit1 handles.edit2 handles.edit3],a);
set(handles.edit4,'String',out);
% --- Executes on button press in pushbutton2.
function pushbutton2_Callback(hObject, eventdata, handles)
% hObject handle to pushbutton2 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
%handles structure with handles and user data (see GUIDATA)
set(handles.edit1,'String','')
set(handles.edit2,'String','')
set(handles.edit3,'String','')
set(handles.edit4,'String','')

Best Answer

  • In your callback for edit1 you replace the handle with the value extracted from the handle. That is confusing at the very least.
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