There is no String property on the Figure class? GUI issue.

I have been trying to get this code to work, but I keep getting the same error.

Error using matlab.ui.Figure/set
There is no String property on the Figure
class.

Error in SpdRdr>pushbutton2_Callback (line
172)
    set(handles.output1,'String',myInput{i});

Error in gui_mainfcn (line 95)
        feval(varargin{:});

Error in SpdRdr (line 42)
    gui_mainfcn(gui_State, varargin{:});

Error in
matlab.graphics.internal.figfile.FigFile/read>@(hObject,eventdata)SpdRdr('pushbutton2_Callback',hObject,eventdata,guidata(hObject)) 
Error while evaluating UIControl Callback

The issue is with this line of code:

set(handles.output1,'String',myInput{i});

text = get(handles.stringinput,'String');
myInput = strsplit(text)
prompt = get(handles.rateinput,'String');
rate = str2num(prompt);
for i = 1:length(myInput
  set(handles.output1,'String',myInput{i});
  pause(60/rate);
end

[dpb]

Well, that is so...you need to use the handle to an object that does have such a property; when the callback is being executed that handles.output1 is the handle to the figure, you need to use the handle of the target object instead.

What that is we can't see from the code posted...

[Michael Stewart]

'output1' is a static text box, which has a string property. Is that the figure the error is referring to?

[dpb]

If it once was, it is no longer at the time you're trying to use it above, no. As the error message says, that variable now is pointing at a figure; Matlab doesn't lie on error messages.

As S Lord says, set a breakpoint in the function and step through to see when this changes...look for an inadvertent assignment in your code shouldn't have made, maybe.

[Michael Stewart]

Thank you, I looked through the code, and their was an issue with with the tag like you implied. I redid the GUI from scratch with different tag names and the program worked as intended.

Answer 1

[Honglei Chen]

From the error message, it seems that the handles.output1 variable points to a figure class, which does not have a string property. So you need to point that to the textbox you want.

HTH

[Michael Stewart]

The object I'm trying to use the 'set' function on is a static text box. Are you saying you can't change the string property of a static text box using 'set'?

[Steven Lord]

According to the error message handles.output1 is NOT the handle of a static text box. If it was originally, it is not now. Something must have overwritten it. To check this, you can set a breakpoint on the line where you try to perform that set call and check to what type of graphics object handles.output1 refers.

If as we suspect it is a figure object, check your code for wherever you assign a value to handles.output1 and make sure that you're performing the assignment you think you are.

[Michael Stewart]

There was an issue with the tag. I'm not sure what exactly happened, but I redid the GUI with different tags, and it's now working. Thank You for your help!