How to detect a solution is open

[GFlisch]

Hi,

I would like to detect when a solution is opened to activate or not some features.

In the Package class I do this.

protected override async Task InitializeAsync(CancellationToken cancellationToken, IProgress progress)
{
this.AddService(typeof(IOutputWnd), CreateOutputWindowAsync, true);
this.AddService(typeof(IContentService), CreateContentServiceAsync, true);

        await this.RegisterCommandsAsync();

        VS.Events.SolutionEvents.OnAfterOpenSolution += SolutionEvents_OnAfterOpenSolution;

    }

    private void SolutionEvents_OnAfterOpenSolution(Solution obj)
    {
        VS.MessageBox.Show("Welcome");
    }

But the event doesn't seem to be fired.

Any help how to achieve this?

Thanks.

[RobertvanderHulst]

Most likely your package is loaded after the solution has been loaded.
I suspect that it you close the solution and reopen it then you will see the event.
You can control when your package is loaded with the ProvideAutoLoad attribute, but still VS decides when you will be loaded.
Mads has a video about this on Youtube IIRC

[GFlisch]

@RobertvanderHulst ,

Ok. Thanks I will try to find the video.

[reduckted]

Using the event is the correct way to detect when a solution opens after your extension has loaded. Here's an example of how you can check if a solution is already open when you're extension loads.

https://github.com/reduckted/ProjectFilter/blob/21d9754495e5282a5e300b0d766181a9172a4ea1/source/ProjectFilter/Services/SolutionLoadObserver.cs#L17-L21

[GFlisch]

Hi @reduckted.

Perfect 👌.. It works like a charm.

Thanks