MATLAB SIMULINK 7 - GRAPHICAL USER INTERFACE Manuel d'utilisateur télécharger pdf (Page 256)

100

101

9 Examples of GUIDE UIs

9-10

end

if exist(file,'file') == 2

data = load(file);

end

% Validate the MAT-file

% The file is valid if the variable is called "Addresses"

% and it has fields called "Name" and "Phone"

flds = fieldnames(data);

if (length(flds) == 1) && (strcmp(flds{1},'Addresses'))

fields = fieldnames(data.Addresses);

if (length(fields) == 2) && (strcmp(fields{1},'Name'))...

&& (strcmp(fields{2},'Phone'))

pass = 1;

end

% If the file is valid, display it

if pass

% Add Addresses to the handles structure

handles.Addresses = data.Addresses;

% Display the first entry

set(handles.Contact_Name,'String',data.Addresses(1).Name)

set(handles.Contact_Phone,'String',data.Addresses(1).Phone)

% Set the index pointer to 1

handles.Index = 1;

% Save the modified handles structure

guidata(handles.Address_Book,handles)

else

errordlg('Not a valid Address Book','Address Book Error')

end

UI Behavior

• “Open and Load MAT-File” on page 9-11

• “Retrieve and Store Data” on page 9-11

• “Data Update Confirmation” on page 9-13

• “Paging Through Entries — Prev/Next” on page 9-14

• “Save File” on page 9-15

• “Clear UI Fields” on page 9-17

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MATLAB SIMULINK 7 - GRAPHICAL USER INTERFACE Manuel d'utilisateur Page 256

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