Trying to open a new pannel when checkboxes are filled but dont work

Question

matlabnewby 2016-11-13

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/312040-trying-to-open-a-new-pannel-when-checkboxes-are-filled-but-dont-work

评论： Geoff Hayes 2016-11-17

Hello guys, here I am trying to create a gui with different checkbox associated with a measurement. you hae 2 main cheboxes. Each of them have specefic checkboxes that are available to be filled with a value. If measurements are missing (depending if the first or second cehcbox is selected), I want to open a msgbox that tells to go back. If the statements are met, i want to open a new pannel.

Tahnk you in advance!

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)
L = str2double(get(handles.editL,'String'));
G = str2double(get(handles.editG,'String'));
W = str2double(get(handles.editW,'String'));
S = str2double(get(handles.editS, 'String'));
C = str2double(get(handles.editC,'String'));
H = str2double(get(handles.editH,'String'));
checkboxgable = get(handles.checkboxStatus2,'Value');
checkboxtunnel = get(handles.checkboxStatus1,'Value');
switch checkboxgable
    case checkboxgable == 1
        if isempty(L)
            disp('There is no valid values for the length of the house (L)');
        elseif isempty(G)
            disp('There is no valid values for the height (G)');
        elseif isempty(W)
            disp('There is no valid values for the width');
        elseif isempty(S)
            disp('There is no valid values for the length of roof (S)');
        elseif isempty(H)
            disp('There is no valid values for the Total height (h)');
        end
      case checkboxgable == 0 && checkbotunnel == 0
          disp('you cannot continue without filling the required measurements')
      case checkboxtunnel == 1
           if isempty(L)
              disp('There is no valid values for the length of the house (L)');
          elseif isempty(W)
              disp('There is no valid values for the width (W)');
          elseif isempty(H)
              disp('There is no valid values for the total height (h)');
          elseif isempty(C)
              disp('There is no valid values for the length of roof (C)');
           end
      otherwise
          window2 
  end

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Answer 1

Geoff Hayes 2016-11-17

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/312040-trying-to-open-a-new-pannel-when-checkboxes-are-filled-but-dont-work#answer_243601

在 MATLAB Online 中打开

You are treating your case statements as if they are conditions

case checkboxgable == 1

or

case checkboxgable == 0 && checkbotunnel == 0

I think that using if and elseif would be more suitable for this type of work. For example

 if checkboxgable == 1
     % do something
 elseif checkboxgable == 0 && checkbotunnel == 0
     % do something else
 elseif checkboxtunnel == 1
     % etc.
 else
     % etc.
 end

See switch for details on use of this expression type.

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matlabnewby 2016-11-17

Thank you Geoff for your contribution!

But i was wondering if in that case, I could use "if statement" insides actual "if statements"? That's why I wanted to use switch, but i will take a closer look!

Have a good one!

Geoff Hayes 2016-11-17

在 MATLAB Online 中打开

Yes, you can use if statements within another if like

 if x==2
     if y == 3
         % do something
     else
         % do something else
     end
 else
     if y == 4
         % do something
     elseif y > 4
         % do something
     else
         % do something
     end
 end