Problem with dropdown itemdata propiety

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I have a dropdown, with some items, and I want that when I select a item, the value returned will not be the item in characters, I want value to be a number associated with the item. I saw in MatLab documentation that itemdata need to be a 1-by-n numeric array.
Say this items: {a,b,c,d}
And say this itemdata: [1 20 300 4000], I understand that this is a numeric matrix right?
When I select for example b, matlab returns a 1x2 charater matrix containing '2' and '0'. I want instead of return this, return the matrix element as a number.
I'm not doing this by code, just with the component editor of matlab app designer.
Any one can help me please?

Accepted Answer

Adam Danz
Adam Danz on 12 Aug 2019
Edited: Adam Danz on 12 Aug 2019
If you're using ItemData, the "Value" property will return the ItemData associated with your selection and it will be in the form of a string. Use str2double() to convert it to numeric.
Value = str2double(app.DropDown.Value);

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