필터 지우기
필터 지우기

How to use context menu for app designer

조회 수: 36 (최근 30일)
Paul Johnson
Paul Johnson 2021년 11월 25일
댓글: Lee 2023년 11월 29일
Hi,
I'm fiding it really difficult figuring out how the conetext menu works in app designer.
I have 4 listboxes that i have linked to a context menu.
I when i use the conext menu that has a "delete" item that I've created. I want the callback to know which listbox has icicated the contextmenu callback.
Tried to read the documentation but didn't seem to be able to get it working

답변 (2개)

Yongjian Feng
Yongjian Feng 2021년 11월 25일
Each listbox has its own contextmenu, right? You should be able to tell which listbox is calling, right?
Attach a screenshot if this is not the case.
  댓글 수: 5
Paul Johnson
Paul Johnson 2021년 12월 17일
I had to go with the following solution below which just seems foolish to me.
Lee
Lee 2022년 8월 2일
편집: Lee 2022년 8월 3일
I agree with you, Paul. This is idiotic, and a massive limitation of AppDesigner compared to GUIDE. Similarly, the ONLY callback available for Listboxes is ValueChanged, making it impossible to change any properties of the app after clicking inside a listbox for example (which would solve your problem). Instead we are forced to duplicate context menus, callbacks, and buttons because now they have to be dedicated to each and every listbox - thanks Mathworks!

댓글을 달려면 로그인하십시오.


Raph
Raph 2023년 11월 29일
편집: Raph 2023년 11월 29일
There is an easy work around that I use for dynamically built interfaces that you may use here.
  • Simply assign the target component as the UserData of the uimenu component.
function pop(src,event)
if strcmp(src.Checked,'on')
src.Checked = 'off';
src.UserData.Items = {'Bonjour','Bonsoir'};
else
src.Checked = 'on';
src.UserData.Items = {'Good Morning','Good Night'};
end
end
cm = uicontextmenu(app.UIFigure);
m = uimenu(cm,'Text','English','Checked','on','UserData',app.ListBox);
app.ListBox.ContextMenu = cm;
  • Assign the MenuSelectedFcn callback to your custom function
m.MenuSelectedFcn = @pop;
  • Then, whenever you check the box of the context menu, it will go to the function and change the data of the listbox by assigning new values to the items which are accessible through the src.UserData which is a pointer to the desired target object.
Hope Lee's anger is solved with this answer.
  댓글 수: 1
Lee
Lee 2023년 11월 29일
Not really, given that I was having the issue over a year ago, and have since changed company.. Nevertheless, I appreciate your effort!

댓글을 달려면 로그인하십시오.

카테고리

Help CenterFile Exchange에서 Migrate GUIDE Apps에 대해 자세히 알아보기

제품

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by