Error when trying to assign to a .NET List Item property

When I try to assign to a List Item property as:

>> list.Item(0).prop = 1

I get the following error:

The name 'Item' is not an accessible property for an instance of class

'System.Collections.Generic.List<ClassLibrary1*Example1>'.

Answer 1

[MathWorks Support Team]

This error will occur if the List Item are structs. Since structs are values (i.e. not references) and since List Items are read-only, you will not be able to modify the Item property in this way. You will need to copy the value, modify the copy, and assign it back to the list. For instance:

x = list.Item(0);

x.prop = 1;

list.Item(0,x); % assigns list.Item(0) the value of x

See here for more information on List Items:

https://www.mathworks.com/help/matlab/matlab_external/accessing-items-in-net-collections.html