warning dialog

I want to use the data below for the logic

Data = 
   ''     ''
   ''     ''
   ''     ''
   ''     ''
if %Data
warndlg('warningstring')
else
end

Answer 1

[Image Analyst]

Look up isempty(). And you probably want to wrap your warndlg inside a uiwait(). If it's like msgbox(), it will continue with your code, blasting right past that warning message unless you put it inside a uiwait().

[pink]

yes I've tried it but in case of error

??? Error while evaluating uipushtool ClickedCallback

??? Undefined function or method 'eq' for input arguments of type 'cell'.

data=get(handles.uitable1,'data')

if isempty(data)

warndlg('warningstring')

return

else

end

[Paulo Silva]

try this all(all(cellfun(@isempty,c))) instead of isempty, it will detect if all the elements of the cell are empty (like this '' and this []), it isn't perfect but should work for your example.

[pink]

hi paul

if uitable1 contain numbers in case of error

data=get(handles.uitable1,'data')

if all(all(cellfun(@isempty,data)))

warndlg('warningstring')

return

else

end

??? Error using ==> cellfun

Input #2 expected to be a cell array, was double instead.

[Paulo Silva]

try using arrayfun instead of cellfun, if data can be cell and array you must detect what data is before looking inside it (use the class and strcmp functions)

[pink]

Can give examples of the use of class and strcrmp

[Walter Roberson]

if ~iscell(data) || all(cellfun(@isempty,data(:))

wardlg('warningstring')

return

end

[pink]

hi walter

after I use if ~iscell(data) || all(cellfun(@isempty,data(:))),

all data read is empty, I would like if uitable1 filled figures (not empty) then the variable 'data' is used in further calculations

[Walter Roberson]

I will need to do some testing to see when it is possible for the data to not be a cell array when it is retrieved. Unfortunately that is not something I can test from home with my current configuration.

I do not think you should be testing for the emptiness of the cells in the cell-clicked callback: if the user is editing a series of the cells, they are not going to want the calculations to take place until they are finished editing.

If you have the data and it _is_ a cell array and you want to ensure that there is something in each of the cells, then

any(cellfun(@isempty,data(:)))

will be true if there are any empty cells.

[pink]

thanks walter..