reference to nonexistent field

Question

Hamza 2016-3-6

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/271761-reference-to-nonexistent-field

评论： Hamza 2016-3-7

Hi there I am trying to link two guis together , I have successfully transfered data between them using setappdata and getappdata But I've got error when trying set data into table (Reference to nonexistent field)

if true
  function results_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 results (see VARARGIN)
handles.output = hObject;
% Update handles structure
guidata(hObject, handles);
a= getappdata(0,'a');
b=getappdata(0,'b');
d=zeros(size(a,1),size(b,2));
set(handles.uitable1,'Data',d)
choice=getappdata(0,'choice');
switch choice
  case 1
      if size(a)==size(b)
          r=a+b;
          set(handles.uitable1,'Data',r)
      else
         set(handles.text1,'string','lenghts must agree')
      end
  case 2
      if size(a)==size(b)
          r=a-b;
          set(handles.uitable1,'Data',r)
      else
         set(handles.text1,'string','lenghts must agree')
      end
  case 3
      if size(a,2)==size(b,1)
          r=a*b;
          set(handles.uitable1,'Data',r)
      else
         set(handles.text1,'string','inner dimensions must agree')
      end
  case 4
      set(handles.uitable1,'Data',inv(a))
  case 5
end
end

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Hamza 2016-3-6

在 MATLAB Online 中打开

if true
 function results_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 results (see VARARGIN)
handles.output = hObject;
% Update handles structure
guidata(hObject, handles);
a= getappdata(0,'a');
b=getappdata(0,'b');
d=zeros(size(a,1),size(b,2));
set(handles.uitable1,'Data',d)
choice=getappdata(0,'choice');
switch choice
  case 1
      if size(a)==size(b)
          r=a+b;
          set(handles.uitable1,'Data',r)
      else
         set(handles.text1,'string','lenghts must agree')
      end
  case 2
      if size(a)==size(b)
          r=a-b;
          set(handles.uitable1,'Data',r)
      else
         set(handles.text1,'string','lenghts must agree')
      end
  case 3
      if size(a,2)==size(b,1)
          r=a*b;
          set(handles.uitable1,'Data',r)
      else
         set(handles.text1,'string','inner dimensions must agree')
      end
  case 4
      set(handles.uitable1,'Data',inv(a))
  case 5
end
end

Image Analyst 2016-3-7

And, by the way, you missspelled lengths as lenghts.

Hamza 2016-3-7

you are right i have uitable2 in my gui not uitable1 thank you very much it works fine

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Answer 1

Geoff Hayes 2016-3-7

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链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/271761-reference-to-nonexistent-field#answer_212702

Hamza - if you look at your results.fig from within GUIDE, you will note that there is one uitable and one static text control. If you double-click on the uitable and look at its Tag property you will see that it is named uitable2 and not uitable1. Change the name, save the figure/GUI, and try again.

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Hamza 2016-3-7

thank you the tag was uitable2 not uitable1 now it works fine

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reference to nonexistent field

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reference to nonexistent field

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