Trying to access EA Project from outside the EA Process with ("EA.App")

[sarathipriyan]

Hi Geert and Uffe,

Using C# code we’re trying to access EA Project from outside the EA Process with something like GetActiveObject("EA.App") object. Is there any code sample (c#) that I use? We have a Enterprise Architect v15.2.1554(Trial Edition Free 30 day unlimited) and I'm using VS2019 community.


can you please share the sample c# code for access (create and get) EA Project from outside the EA .

[Geert Bellekens]

This is the code I use to connect to the running instance on my model wrapper class https://github.com/GeertBellekens/Enterprise-Architect-Add-in-Framework/blob/master/EAAddinFramework/EAWrappers/Model.cs

Code: [Select]

        public Model()
        {
            object obj = Marshal.GetActiveObject("EA.App");
            global::EA.App eaApp = obj as global::EA.App;
            this.initialize(eaApp.Repository);
        }
this code (vbscript) creates a  new EA instance

Code: [Select]

dim repository
set repository = CreateObject("EA.Repository")
Geert

[sarathipriyan]

This is the code I use to connect to the running instance on my model wrapper class https://github.com/GeertBellekens/Enterprise-Architect-Add-in-Framework/blob/master/EAAddinFramework/EAWrappers/Model.cs

Code: [Select]

        public Model()
        {
            object obj = Marshal.GetActiveObject("EA.App");
            global::EA.App eaApp = obj as global::EA.App;
            this.initialize(eaApp.Repository);
        }
this code (vbscript) creates a  new EA instance

Code: [Select]

dim repository
set repository = CreateObject("EA.Repository")
Geert

Thanks for the update. I will check and update you

[sarathipriyan]

Hi Geert,

here's a copy of the code I'm using to connect with the EA repo externally.


   

static class Program
    {
        /// <summary>
        /// The main entry point for the application.
        /// </summary>
        private static global::EA.Repository _wrappedModel;

        [STAThread]
        static void Main()
        {

            Model();
            Console.WriteLine("Hooked upto repository");
            DumpModel();     
        }

        static public  void DumpModel()
        {
            for(short i=0; i < _wrappedModel.Models.Count; i ++)
            {
                DumpPackage("", (EA.Package)_wrappedModel.Models.GetAt(i));
            }
        }

        static public  void DumpPackage(string s, EA.Package package)
        {
            Console.WriteLine("Package Name = " + package.Name);
            DumpElements(s, package);
        }

        static public void DumpElements(string s, EA.Package package)
        {
           
            for (short j = 0 ; j  < package.Elements.Count; j ++)
            {
                EA.Element element = (EA.Element)package.Elements.GetAt(j);
                Console.WriteLine(":: " + element.Name);
            }
        }

        static public void Model()
        {
            object obj = Marshal.GetActiveObject("EA.App");
            global::EA.App eaApp = obj as global::EA.App;
            initialize(eaApp.Repository);
        }

        static public void initialize(global::EA.Repository eaRepository)
        {
            _wrappedModel = eaRepository;
        }


    }
}

I have also created a project, Requirement, package, and elements from EA console.
but I'm not able to get the elements externally. The count is zero(package.Elements.Count;)

how do I get the elements from EA?

Enterprise Architect v15.2.1554(Trial Edition Free 30 day unlimited) and I'm using VS2019 community.

[Geert Bellekens]

I don't see the code you are using to start EA, nor the code you are using to open a model.

But more importantly, you are only dumping elements, not packages.
Usually there are no elements directly under the root packages, only packages.

Geert

[sarathipriyan]

I don't see the code you are using to start EA, nor the code you are using to open a model.

But more importantly, you are only dumping elements, not packages.
Usually there are no elements directly under the root packages, only packages.

Geert

Yes you're right in that code first we are opening the package and than we print the elements inside the package we wrote.

About opening the model, Sorry I thought object obj = Marshal.GetActiveObject("EA.App") would open the model. Can you suggest which call we need to use to open a model.

[Geert Bellekens]

Marshal.GetActiveObject("EA.App") gets you the running instance of EA, with or without model loaded.

If you want to load another model, use Repository.OpenFile or Repository.OpenFile2

Geert

[sarathipriyan]

Marshal.GetActiveObject("EA.App") gets you the running instance of EA, with or without model loaded.

If you want to load another model, use Repository.OpenFile or Repository.OpenFile2

Geert

Thank you for your suggestions Geert, now I'm able to create and modify packages and elements. I can see the package and elements in EA dashboard. Is there a quick way to visualize that relationship as model diagram in EA?

I  have tried to use package diagram to view the elements but it's not working.