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error while calling a programatic gui from a guide gui

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I have a main GUI created using GUIDE and I am calling a programmatic GUI (dialog box with some inputs)by clicking pushbutton callback from the main GUI.
by doing so MATLAB give the following error
??? Error using ==> WSM>getLASandXLS
Too many output arguments.
Error in ==> WSM>impWizard_Callback at 259
files = getLASandXLS;
The following is the code for my programmatic GUI which works fine from commandline but not inside the pussbutton callback of main GUI
function varargout = getLASandXLS(varargin)
% getLASandXLS Get file names for processing data
% click browse push buttons. Clicking the buttons
% populates the edit boxes. click OK to finsh
mInputArgs = varargin; % Command line arguments when invoking the GUI
mOutputArgs = {}; % Variable for storing output when GUI returns
% Initialize and hide the GUI as it is being constructed.
w = 500; % pixels
h = 120; % pixels
f = figure('Visible','off', 'Color',[.94 .94 .94],'MenuBar','none',...
'Name','Choose data files','NumberTitle','off',...
'ToolBar','none','Resize','off','Position',[250,500,w,h]);
htextLAS = uicontrol('Style','text',...
'String','Log data file path',...
'Position',[10,h-43.5,100,25]);
htextXLS = uicontrol('Style','text',...
'String','Lab data file path',...
'Position',[10,h-78.5,100,25]);
heditLAS = uicontrol('Style','edit', ...
'BackgroundColor',[1 1 1],...
'enable', 'on',...
'String','Choose LAS file',...
'Position',[120,h-40,300,25]);
heditXLS = uicontrol('Style','edit',...
'BackgroundColor',[1 1 1],...
'enable', 'on',...
'String','Choose XLS file',...
'Position',[120,h-75,300,25]);
hpbtnLAS = uicontrol('Style','pushbutton',...
'String','Browse',...
'Callback',{@browseLAS_Callback},...
'Position',[430,h-40,60,25]);
hpbtnXLS = uicontrol('Style','pushbutton',...
'String','Browse',...
'Callback',{@browseXLS_Callback},...
'Position',[430,h-75,60,25]);
hpbtnOK = uicontrol('Style','pushbutton',...
'String','OK',...
'Callback',{@ok_Callback},...
'Position',[430,h-110,60,25]);
hpbtnCancel = uicontrol('Style','pushbutton',...
'String','Cancel',...
'Callback',{@cancel_Callback},...
'Position',[360,h-110,60,25]);
movegui(f, 'center');
set(f,'Visible','on')
uiwait(f);
% varargout = files;
mOutputArgs{1} =files;
if nargout>0
[varargout{1:nargout}] = mOutputArgs{:};
end
function browseLAS_Callback(source, eventdata)
filter_spec={'*.las', 'Well log files (*.las)'; ...
'*.*', 'All files (*.*)'};
dialogue='Read LAS file';
[fname,pname] = uigetfile(filter_spec, dialogue);
filename = strcat(pname, fname);
if fopen(filename) == -1
error('No file selected');
end
set(heditLAS, 'string', filename);
end
function browseXLS_Callback(source, eventdata)
filter_spec={'*.Xls*', 'Core data sheets (*.Xls)'; ...
'*.*', 'All files (*.*)'};
dialogue='Read Excel file';
[fname,pname] = uigetfile(filter_spec, dialogue);
filename = strcat(pname, fname);
if fopen(filename) == -1
error('No file selected');
end
set(heditXLS, 'string', filename);
end
function cancel_Callback(source, eventdata)
disp('Import data dialog was cancelled');
files{1} = [];
files{2} = [];
uiresume;
delete(f);
end
function ok_Callback(source, eventdata)
files{1} = get(heditLAS,'String');
files{2} = get(heditXLS,'String');
uiresume;
delete(f);
end
end

Answers (1)

Walter Roberson
Walter Roberson on 4 Aug 2011
[varargout{1:nargout}] = deal(mOutputArgs{1:nargout});
or, better,
if nargout > numel(mOutputArgs)
mOutputArgs(end+1:nargout) = {};
end
varargout(1:nargout) = mOutputArgs(1:nargout);
When the number of values in mOutputArgs was more than the number of output arguments, the code you were using had a mismatch between the left and right hand side. The "or, better" version also protects against the number of output arguments being larger than the number of available values.
  2 Comments
salamay
salamay on 5 Aug 2011
I used your first method but still gives the same error while using it inside another GUI pushbutton callback.
I have a feeling that getLASandXLS doesn not have any issues but theres gotta be something wrong while calling it from another GUIDE generated gui
salamay
salamay on 5 Aug 2011
Oh I found the problem.
I had the same function in the main gui which i initially was trying to write and then decided to make it an external function. Now that I have deleted that it works just fine.
Thanks anyway for your help!

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