Insert whole containing of text file to Matlab

Hi. I have a text file (.txt) that I want insert all containing of it to Matlab and show it in a text box. Sometimes this text box updates when I GUI open it so there isn’t a specified text in it. (It is like a help note for my GUI that has text, numbers etc.) . I want insert whole containing of this text file automatically to my text box in Matlab. What should I do?

Thanks.

[Jasmine]

Could you please share any code you have already written?

[Jack]

I'm using textscan like this :

    dd_reader = fopen([pwd 'Text file address']); 
    NSV_NN = textscan(Add_reader,'%str'); 
    NSV_NN=NSV_NN{1}; 
    NSV_NN=NSV_NN{1};

Answer 1

[per isakson]

Example of setting and resetting the string of an editbox

    figure
    str = fileread('cssm_1.help');
    ebh = uicontrol                             ...
            (   'Style'     , 'Edit'            ...
            ,   'Units'     , 'Normalized'      ...
            ,   'Position'  , [0.1,0.1,0.8,.8]  ...
            ,   'Max'       , 2                 ...
            ,   'Horizontal', 'left'            ...
            ,   'String'    , str               );
    fid = fopen('cssm_2.help'); 
    cac = textscan( fid, '%s', 'Delimiter', '\n' );
    [~] = fclose( fid );
    set(  ebh, 'String', cac{1} );

where cssm_1.help and cssm_2.help contains

    cssm_help 
    l1
    l2
    l3 - is a longer line

and

    cssm_help - version 2
    l1
    l2
    l3 - this is a longer line

respectively.