MATLAB Creating Graphical User Interfaces

9 Examples of GUIDE UIs

the Contact_Name_Callback or the Contact_Phone_Callback updates

handles.Addresses.

If you select Save, the save function is called to save the current MAT-file with the new

names and phone numbers.

If you select Save As, a dialog box displays which enables you to select the name of an

existing MAT-file or specify a new file. The dialog box returns the selected file name and

path. The final steps include:

• Using fullfile to create a platform-independent path name.


• Calling save to save the new data in the MAT-file.


• Updating the handles structure to contain the new MAT-file name.


• Calling guidata to save the handles structure.

Save_Callback

function Save_Callback(hObject, eventdata, handles, varargin)

% Get the Tag of the menu selected

Tag = get(hObject,'Tag');

% Get the address array

Addresses = handles.Addresses;

% Based on the item selected, take the appropriate action

switch Tag

case 'Save'

% Save to the default addrbook file

File = handles.LastFile;

save(File,'Addresses')

case 'Save_As'

% Allow the user to select the file name to save to

[filename, pathname] = uiputfile( ...

{'*.mat';'*.*'}, ...

'Save as');

% If 'Cancel' was selected then return

if isequal([filename,pathname],[0,0])

return

else

% Construct the full path and save

File = fullfile(pathname,filename);

save(File,'Addresses')

handles.LastFile = File;