MATLAB Object-Oriented Programming

Accessing Dynamic Properties in Arrays

You cannot reference all the dynamic properties in an object array using a single

statement, as you can with ordinary properties. For example, the ObjectArrayDynamic

class subclasses the dynamicprops class.

classdef ObjectArrayDynamic < dynamicprops

properties

RegProp

end

methods

function obj = ObjectArrayDynamic

obj.RegProp = randi(100);

end

end

end

You can add dynamic properties to objects of the ObjectArrayDynamic class. Create an

object array and add dynamic properties to each member of the array. Define elements 1

and 2 as ObjectArrayDynamic objects:

a(1) = ObjectArrayDynamic;

a(2) = ObjectArrayDynamic;

Add dynamic properties to each object and assign a value.

a(1).addprop('DynoProp');

a(1).DynoProp = 1;

a(2).addprop('DynoProp');

a(2).DynoProp = 2;

Get the values of the ordinary properties, as with any array.

a.RegProp

ans =

4

ans =

85

However, MATLAB returns an error if you try to access the dynamic properties of all array

elements using this syntax.

10 Object Arrays