Dynamically populating mask parameter popup list
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Is it possible to dynamically populate a Simulink mask's popup parameter's list using Dialog callback? Or is this facility static and to be defined while editing the mask?
1 个评论
Kyle
2013-8-13
I would also like to know if this is possible
采纳的回答
Arun
2013-8-14
6 个评论
Kaustubha Govind
2013-8-14
编辑：Kaustubha Govind
2013-8-14
Thanks for posting your solution, Arun! (Quick question though - it looks like you did this in the OpenFcn callback, which is kind of an edit-time function. Were you able to do something similar in a Mask Dialog Callback?)
Arun
2013-8-15
Kaustubha Govind
2013-8-15
When you re-open the dialog (after the warning), does the popup now have the new Shapes set?
Arun
2013-8-15
Jared Belke
2019-6-26
编辑：Jared Belke
2019-6-26
I know this is super late, but since this is what I work on every day I figured I'd update this for people who see this post now. There is a less comical way to do it. Assume you have some cell array "options" that contains the new list of options that you want to populate the popup list with. You can do the following:
maskObj = Simulink.Mask.get(gcb);
maskObj.getParameter('<Name of Popup List Parameter>').TypeOptions = options;
You can also do many other things with the Mask Object such as dynamically change the Enable field, Visible field, Value field (Or any other field that you can edit in the mask editor) of any Parameter or Dialog Control (E.g. Buttons).
For example:
maskObj.getParameter('<Name of Parameter>').Enabled = 'off';
maskObj.getParameter('<Name of Button>').Visible = 'on';
checker
2021-2-14
Jared, thanks buddy, that's awesome. I've moved from older versions of matlab to 2020 and have been finding lots of new APIs but this one eluded me until I ran across your post.
更多回答（2 个）
Kaustubha Govind
2013-8-14
0 个投票
I'm not much of an expert in the Simulink Mask area, but I don't think you can dynamically change the contents of a mask. However, you can change the visibility of parameters - so you might want to create multiple popup lists for each configuration and change their visibility in the Dialog Callback.
2 个评论
Robert
2015-1-20
If you find this thread, it helps to be clear on what is meant by "Dynamic". I have found that you may dynamically update a mask, e.g. in an OpenFcn callback. However if you wish the mask to be dynamic once open (e.g. two drop-down-lists/popups where the choices in the second depend on the selected value of the first) this does not seem to be possible. However this type of dynamic functionality is achievable via a custom GUI (see GUIDE help).
It turns out there is a simple DAStudio functionality that allows masks to be dynamic once open.
dToolRoot = DAStudio.ToolRoot;
openDialogs = dToolRoot.getOpenDialogs;
openDialogs(1).refresh();
Or
blockObject = get_param(gcb,'object');
blockDialog = DAStudio.Dialog(blockObject.getDialogSource);
blockDialog.refresh();
I'll add a full code sample as an answer.
If you want to update a popdown menu while a mask is open, the following may be helpful:
% Set the parameter index equal to the index specified
% for the desired popup parameter in the mask editor
parameterIndex = 1;
% Get the handle to the mask parameter to modify
maskHandle = Simulink.Mask.get(gcb);
maskParameters = maskHandle.Parameters;
% Update the popup list options
maskParameters(parameterIndex).TypeOptions = {'Option 1', 'Option 2'};
% Now refresh the mask display
%Get the handle to the blocks object
blockObject=get_param(gcb,'object');
%Get the handle to the dialog
blockDialog= DAStudio.Dialog(blockObject.getDialogSource);
%Refresh the dialog
blockDialog.refresh();
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