app designer ui table drop down selection

Hi,

How can I make cells inside App Designer UITable selectable via drop down menu only but not editable as string?

i.e. I need to limit the possible values of these cells using drop down selection to a list of categorical array, and not letting user type whatever they want.

Thanks

Answer 1

[Rachel Surridge]

Hi Jimmy,

You can achieve this by making your categorical array protected. Example:

B = categorical(A, 'Protected', true)

This will protect your drop-down menu from edits.

Full implementation of an example:

fig = uifigure;
myData = {'Andrew' 31 'Male'; ...
    'Bob' 41 'Male';  ...
    'Anne' 20 'Female';};
myData = cell2table(myData, 'VariableNames', {'Name', 'Age','Gender'});
myData.Group = categorical({'Group 1'; 'Group 2'; 'Group 3'}, 'Protected', true);

uit = uitable('Parent', fig, ...
    'Position', [100 150 380 100], ...
    'ColumnEditable',true, ...
    'Data',myData);

[Jimmy Zhan]

Hi Rachel,

Thanks! It worked. This is exactly what I was looking for.

Best regards

[Andrea Carignano]

It does not work for me. It works only if the groups are as many as the rows of the table. For example if I have

myData.Group = categorical({'Group 1'; 'Group 2'; 'Group 3';'Group 4'}, 'Protected', true);

I get this error

Error using myscript (line 6)
To assign to or create a variable in a table, the number of rows must match the height of the table.

Ideas?

[Andrea Carignano]

The correct way to do this is:

myData.Group = categorical({'Group 1'},{'Group 1'; 'Group 2'; 'Group 3'}, 'Protected', true);