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c#visual-studiovisual-studio-2017umlclass-diagram
Dominique
Dominique

Reputation: 17493

How to work with associations in Visual Studio's class diagram?

I'm setting my first steps in Visual Studio's class diagrams for a C# project.

In the class diagram, I have already managed to create a new class, add fields, properties and methods, make an association from a single class to another single class, and automatically generate the corresponding code. I have also already generated a class diagram from an existing C# project.

Two things I've not succeeded in, and which are quite crucial:

I'm working with Visual Studio 2017, enterprise edition, version 15.9.36.

Does anybody know what I can do? (Are those known bugs, am I doing something wrong and what should I do instead, am I using a wrong version of Visual Studio for this, ...?)

Thanks in advance

Upvotes: 0

Views: 2723

Answers (1)

Hui Liu
Hui Liu

Reputation: 1038

I reproduced the first problem. You could try to right-click the class diagram and select Show as Association(one to one) or Show as Collection Association(one to many) to show the connections between the class diagrams.

enter image description here

For one-to-many relationships, you can use list. Here is a simple example:

class Person
  {
    public string Name { get; set; }
    public int Age { get; set; }
    public List<Family> Fmailies { get; set; }
   //Code automatically generated when the class diagram creates an Association
    internal Family Family
    {
      get => default;
      set
      {
      }
    }
  }

class Family
  {
    public string Name { get; set; }
    public string Relation { get; set; }
    
  }

Corresponding class diagram:

enter image description here

Edit： It is normal to create new classes when using classes that are not in the class diagram. Association is based on existing attributes. You could create attributes first, and then establish associations.

I think the association between the classes may be detectable, but it is not explicitly shown in the class diagram.

Currently, I have not found a way to automatically display the association in visual studio. You could display the association manually.

Upvotes: 1

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