How to set a GUI table column width in a callback function?

    function ddl_filelist_calbk(source,eventdata)
        filename = filelist(get(ddl_filelist, 'Value'));
        set(ddl_vars, 'String', 'Pas de fichiers');
        %set(figmain, 'Name',  [ 'Analyse du véhicule : ' num2str(cur_bus)])
        bus_anadone_fpath = strcat([ defaults.basepath{defaults.oscode} ...
            '/' num2str(cur_bus) '/ANALYSE_DONE/' filename{1}] );
        varlist = getvarlist(bus_anadone_fpath, get(ddl_usage, 'value'))';
        varnum = numel(varlist);
        if numel(varlist) > 0;
            filelist = flip(filelist);
            set(ddl_vars, 'String', varlist);
            set(btn_creerparamat, 'visible','on');
            set(tbl_vars, 'data', varlist);
            set(tbl_vars, 'visible','on');
% ?--?--?--?--?--?--?--?--?--?--?--?--?--?--?--?--?--?--?--?
% This line will not work :-(
%            set(tbl_vars, 'ColumnWidth(1)','200'); 
% ?--?--?--?--?--?--?--?--?--?--?--?--?--?--?--?--?--?--?--?
        else
            set(ddl_vars, 'String', 'Pas de variable');
            set(btn_creerparamat, 'visible','off');
            set(tbl_vars, 'visible','off');
        end;
    end

[Daniel Lafrance]

I forgot. I wish the column width to be dynamic with the text change.

Answer 1

[Image Analyst]

See this demo where I set the column widths of a table.

clc;
clearvars;
close all;
% Create sample data and row and column headers.
columnHeaders = {'n', 'Data Set #1', 'Data Set #2'};
for n=1:10,
  rowHeaders{n} = sprintf('Row #%d', n);
  tableData{n,1} = n;
  tableData{n,2} = 10*rand(1,1);
  tableData{n,3} = sprintf('  Value = %.2f %s %.2f', rand(1,1), 177, rand(1));
end

% Create the table and display it.
hTable = uitable();

% Apply the row and column headers.
set(hTable, 'RowName', rowHeaders);
set(hTable, 'ColumnName', columnHeaders);

% Display the table of values.
set(hTable, 'data', tableData);

% Size the table.
set(hTable, 'units', 'normalized');
set(hTable, 'Position', [.1 .1 .8 .8]);
set(hTable, 'ColumnWidth', {40, 120, 180});
set(gcf,'name','Image Analysis Demo','numbertitle','off')

Of course you need to figure out a number for the width. There is an "autowidth" property for the columns but I don't think it works (otherwise I wouldn't be setting it manually), but I could be wrong.