MATLAB: File name entry into gui table

uitable

GUIDE newbie questions

Using GUIDE, I cannot figure out how to enter a file name acquired through uigetfile into a table cell. Any halp for this simple funciton greatly appreciated.

Best Answer

filename = uigetfile('*.jpg'); %for example
curdata = get(handles.uitable1, 'Data');  %example handle name
curdata{3,2} = filename;    %3,2 is example location
set(handles.uitable1, 'Data', curdata);   %same example handle name

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MATLAB: Only 1st of 2 axes in GUIDE updates

function pushbutton1_Callback(hObject, eventdata, handles)
[FileName,~]=uigetfile('*.mat','Get File') 
handles = load(FileName)
guidata(hObject,handles)

This is a really bad idea. Do not overwrite the handles struct.

Consider the path name also, because a user can select another folder in the uigetfile dialog:

[FileName, FilePath] = uigetfile('*.mat', 'Get File');
if ~ischar(FileName)
  disp('User canceled the file selection');
  return;
end
handles.FileData = load(fullfile(PathName, FileName))
guidata(hObject, handles);

This is a questionable idea also:

function edit1_Callback(hObject, eventdata, handles)
handles.geneName = get(hObject,'String');
guidata(hObject,handles);

Remember that the "handles" in the input argument is the contents of the struct conserved at the time, when the callback has been defined - or did GUIDE use a smart mechanism to update the input now? Safer and/or perhaps the only valid method:

function edit1_Callback(hObject, eventdata, handlesFronInput)
handles          = guidata(hObject);  % Current value from the figure
handles.geneName = get(hObject,'String');

Searching for tags can be time consuming and tags need not be unique, e.g. if you open multiple instances of the dialog. Prefer using the handles:

% axes(findobj('Tag','axes1'));
% hist(varYY1,XX);
% title('varYY1');
hist(handkles.axes2, varYY1, XX);
title(handles.axes2, 'varYY1');

This is safer also, when the user clicks in GUI elements during the code runs. Setting the active axes by the axes() command is overridden, when the user clicks on another axes.

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

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

Best Answer

Related Solutions

MATLAB: Only 1st of 2 axes in GUIDE updates

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

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