Constant properties in classes

2017 5 17
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更新时间：2018 3 2
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Hi,
is it possible to define a constant property in a class which depends on other constant properties in the same class?
Would that also be correct?
thank you for your answer in advance!

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Guillaume
Guillaume 2017-5-17

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Yes, constant properties can be calculated from other constant properties. It's the first example in the doc actually.

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Ahmed Hossam
Ahmed Hossam 2017-5-17
I've just seen this example after posting the question :D
New
New 2017-7-29
Properties (Constant)
a = 1;
b = a+1;
end
function ButtonPushed(app, event)
app.EditField.Value = app.EditField.Value + app.b;
end
Message: Invalid default value for property 'b' in class 'App1': Undefined function or variable 'a'.
What's wrong?
Guillaume
Guillaume 2017-7-29
As shown in the very first example in the link in my answer, you have to use the syntax:
classdef App1
properties (Constant)
a = 1;
b = App1.a+1;
end
Ganesh Gajavelli
Ganesh Gajavelli 2018-3-2
Yes, that was it for me too! Thanks so much!

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