Popup value in Simulink Mask doesn't refresh

I am currently masking a block in simulink. The mask contains a popup list called dbclist with hardcoded type options (1, 2, 3, ..., 7). The callback function of said popup list looks like this:

msk = Simulink.Mask.get(gcb);
dbcPopup = msk.getParameter('dbclist');
dbcPopup.Value

When changing the value of dbclist while using the mask the command window always responds with:

ans =

1

ans =

1

ans =

1

How can I get the actual value of dbclist? I am using MATLAB 2014b on Mac OS X.

[sam0037]

Hi,

I am able to see different results by changing the masked parameter 'dbclist'. I have attached a model for illustration. If I have misunderstood the issue then can you elaborate more on the issue? Also, share a reproduction model if possible.

If you are looking for dynamically populating mask parameter popup list then follow the link below:

http://www.mathworks.com/matlabcentral/answers/82930-dynamically-populating-mask-parameter-popup-list?s_tid=answers_rc1-3_p3

[R Phi]

Hi Abdus,

thank you very much for answering. Unfortunately I still deal with the same behaviour. I created a minimal model which is attached to this post.

Moreover I will explain my problem a bit more detailed. The task is to mask a simulink block. The mask consists of one button and two popuplists (called dbclist and messagelist) at the moment. The button refreshes the data that is needed for populating both popuplists. In this example this data is hardcoded. The callback of the button looks like this:

keySet = {'1', '2', '3'};
value1 = {'aa', 'bb', 'cc'};
value2 = {'dd', 'ee', 'ff'};
value3 = {'gg', 'hh', 'ii'};
valueSet = {value1, value2, value3};
mapObj = containers.Map(keySet, valueSet);

msk = Simulink.Mask.get(gcb);
dbcPopup = msk.getParameter('dbclist');
dbcPopup.TypeOptions = keys(mapObj);

The first popuplist (dbclist) should let you choose between 1, 2 and 3. If you select 1 the type options of the second popuplist (messagelist) should be aa, bb and cc. If you select 2 you can choose between dd, ee and ff and finally by selecting 3 you should get the type options gg, hh and ii.

To achieve such a behaviour the callback of the first popuplist (dbclist) looks like this:

msk = Simulink.Mask.get(gcb);
dbcPopup = msk.getParameter('dbclist');
msgPopup = msk.getParameter('messagelist');
dbcPopup.Value

try
    tmpList = values(mapObj, {dbcPopup.Value});
    tmpList = tmpList{1};
    msgPopup.TypeOptions = tmpList;
catch ME
end

dbcPopup.Value in the fourth row is only called to monitor the value which unfortunately never changes. What am I doing wrong? :-(

Answer 1

[R Phi]

I have found a solution. I am getting the correct value by using

vals = get_param(gcb,'MaskValues');
dbcValue = vals{1}

instead of

msk = Simulink.Mask.get(gcb);
dbcPopup = msk.getParameter('dbclist');
dbcPopup.Value

I still don't know what is wrong with the first approach, especially because it works for Abdus. I would really appreciate iff someone figures out what is wrong.