MATLAB Answers

Scrolling down drop down list

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Khalala Mamouri
Khalala Mamouri on 31 Aug 2020
Edited: Adam Danz on 31 Aug 2020
Hi,
i am developping an app in app designer, but i am runing out of space for the drop down list. i wonder if there is a way to make a scrolling dropdown list, just like web pages when you want to go further down you just keep clicking on the rectangle think to the right of the screen.
this is my code :
list = load('Vehiclelist.mat');
assignin('base','list', list);
app.VehicleModelDropDown.Items = list.Vehiclelist;
Vehiclelist = [app.VehicleModelDropDown.Items New_Bat_Name];
save('Vehiclelist.mat','Vehiclelist','-append');
app.VehicleModelDropDown.Items = Vehiclelist;
%% scroll(app.VehicleModelDropDown.Items,1,1); %% << Somewhere here i want to put the
%% scrolling thing
thank you
  3 Comments
Adam Danz
Adam Danz on 31 Aug 2020
No, I don't believe that's possible. You could shrink the height so that it only shows 1 item at a time but it will still only show 1 line at a time when scrolling through it.

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Answers (1)

Mario Malic
Mario Malic on 31 Aug 2020
Edited: Mario Malic on 31 Aug 2020
app.DisplayDropDown.Items = app.Legend_Str; % This is cell 1xn that contains char arrays
This works for me. I believe it appears when the items cannot fit the main window.
You don't have scrolling thing because, most likely you did not load all the data.
  1 Comment
Adam Danz
Adam Danz on 31 Aug 2020
+1, yes - once the list gets too long it will automatically add a vertical scoll bar.

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