How to make two drop down Dependent
21 Ansichten (letzte 30 Tage)
Ältere Kommentare anzeigen
I have two drop down on my App Designer app, like this:
DropDown1.Items = {'1','2','3','4','5'};
DropDown1.ItemsData = [1,2,3,4,5];
DropDown2.Items = {'10','20','30','40','50'};
DropDown2.ItemsData = [1,2,3,4,5];
I would like to make this drop down dependent, so, if I choose on the DropDown1 the second option ({'2'}), the DropDown2 display the same position option (the second {'20'}) and so on any position I choose.
Is there any way to make this on App Designer or GUI?
2 Kommentare
Geoff Hayes
am 29 Mai 2019
Adrian - you can probably do something in the callback for the first drop down: when this fires (due to a change in the choice), then update the selected value in the second drop down.
Akzeptierte Antwort
Luna
am 29 Mai 2019
Bearbeitet: Luna
am 29 Mai 2019
Here is a basic test app I have created.
Please read comments carefully.
classdef testDropDown < handle
properties
dd1 % will be used for dropdown1 handle
dd2 % will be used for dropdown2 handle
end
methods
function obj = testDropDown(obj) % obj is testDropDown obj whose superclasses is handle class
hFig = figure;
%% dropdown1 assigned as a property for testDropDown Class
obj.dd1 = uicontrol('Parent',hFig,'Style','popupmenu','Units','normalized','Position',[0.1 0.3 0.5 0.1],'Callback',@obj.dd1Callback,'String',{'1','2','3'});
%% dropdown2 assigned as a property for testDropDown Class
obj.dd2 = uicontrol('Parent',hFig,'Style','popupmenu','Units','normalized','Position',[0.1 0.1 0.5 0.1],'Callback',@obj.dd2Callback,'String',{'10','20','30'});
end
function dd1Callback(obj,src,evnt) % when clicked on dropdown1 this callback will be executed.
obj.dd2.Value = src.Value; % gets the value of the source(src) which is the object handle of the item that you have clicked on and assignes it to the other dropdown's value.
end
function dd2Callback(obj,src,evnt) % when clicked on dropdown2 this callback will be executed.
% obj is the main class object
% src is the source of that callback executed it can be a button or a dropdown menu item,etc.
% evnt is the event handle that stores the clicking event.
end
end
end
Read more about handle classes you can find lots of information.
3 Kommentare
Weitere Antworten (0)
Siehe auch
Kategorien
Mehr zu Migrate GUIDE Apps finden Sie in Help Center und File Exchange
Produkte
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!