How to use a drop down menu to show an image based on selection.

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Daniel 2022-11-5

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评论： Fazlollah 2023-2-16

I am trying to create an app component that shows solar radiation on the earth. the user will use a drop down menu and select a region on earth( North America, Asia....). Then I want the image to be displayed on the image app after they select a region. What is the best approach.

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回答（1 个）

Mario Malic 2022-11-6

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Hello,

I would put those pictures in a cell array

images = cell(5,1);
images{1} = imread("path"); % and so on

Define ItemsData property in the DropDown component to take numeric value from 1 to n-pictures

app.DropDown.ItemsData = 1:5;

Then, you are able to use the Value, even if it's a character array, it will take the ItemsData value which you can use to index into cell array with images.

images{app.DropDown.Value}