Implementing a UML association

I have 3 classes - their associations are modelled in UML thus:

Class A: 1 --1..* Class B: 1 --1..* Class C

How would I implement this in C#?

Thanks

Paolo wrote:

Quote:

I have 3 classes - their associations are modelled in UML thus:
>
Class A: 1 --1..* Class B: 1 --1..* Class C
>
How would I implement this in C#?

Let A contain a List<Band B contain a List<C>.

And make the code enforce minimum of 1 element,
if that is really important.

Arne

Arne: thank you for the reply. I am new to C# so sorry if this next question
is a bit basic. When I create an instance of Class A I would create a
List<class Bas part of the instantiation. As I create a number of instances
of class B in my application presumably I then have to Add them to the
List<class Bin the class A object?

"Arne Vajhøj" wrote:

Quote:

Paolo wrote:

Quote:

I have 3 classes - their associations are modelled in UML thus:

Class A: 1 --1..* Class B: 1 --1..* Class C

How would I implement this in C#?

>
Let A contain a List<Band B contain a List<C>.
>
And make the code enforce minimum of 1 element,
if that is really important.
>
Arne
>

Paolo wrote:

Quote:

"Arne Vajhøj" wrote:

Quote:

>Paolo wrote:

Quote:

>>I have 3 classes - their associations are modelled in UML thus:
>>>
>>Class A: 1 --1..* Class B: 1 --1..* Class C
>>>
>>How would I implement this in C#?

>Let A contain a List<Band B contain a List<C>.
>>
>And make the code enforce minimum of 1 element,
>if that is really important.

I am new to C# so sorry if this next question
is a bit basic. When I create an instance of Class A I would create a
List<class Bas part of the instantiation. As I create a number of

instances

Quote:

of class B in my application presumably I then have to Add them to the
List<class Bin the class A object?

The list should be private, so either the B's should be created and
added inside A or something outside A should create them and
call a method in A that does the add.

Arne

Arne: thank you. I shall proceed as you recommend.

"Arne Vajhøj" wrote:

Quote:

Paolo wrote:

Quote:

"Arne Vajhøj" wrote:

Quote:

Paolo wrote:
>I have 3 classes - their associations are modelled in UML thus:
>>
>Class A: 1 --1..* Class B: 1 --1..* Class C
>>
>How would I implement this in C#?
Let A contain a List<Band B contain a List<C>.
>
And make the code enforce minimum of 1 element,
if that is really important.

I am new to C# so sorry if this next question
is a bit basic. When I create an instance of Class A I would create a
List<class Bas part of the instantiation. As I create a number of

instances

Quote:

of class B in my application presumably I then have to Add them to the
List<class Bin the class A object?

>
The list should be private, so either the B's should be created and
added inside A or something outside A should create them and
call a method in A that does the add.
>
Arne
>

Implementing a UML association

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