User Controls and Microsoft Graph

Question

I am attempting to create a user control in Visual Studio 2019 using C#. Place the authentication portion of my code into the <control>_load.
On attempting to drag the control to my form, I get a "Failed To Create Component...". In a form or in dll it seems to work. Is using Microsoft Graph in a user control something we should not do?

Here a snippet of the control code:

 private async void UserControl1_Load(object sender, EventArgs e)  
        {  
            confidentialClientApplication = ConfidentialClientApplicationBuilder  
                .Create(ClientId)  
                .WithTenantId(Tenant)  
                .WithClientSecret(cSecret)  
                .Build();  
            authProvider = new ClientCredentialProvider(confidentialClientApplication);  
  
  
            NoteBookHandler = GraphClientFactory.CreateDefaultHandlers(authProvider);  
            OutlookHttpClient = GraphClientFactory.Create(authProvider);  
            OutlookClient = new GraphServiceClient(OutlookHttpClient);  
  
            object MyFolders = await OutlookClient.Users["******@cga.ct.gov"].MailFolders.Request().Top(100).GetAsync();![73499-msgrapherror1.jpg][1]  
       }  

Also, attached is an image of the error.

Gerry

Answer 1

Hi EigoGerry-5512,
I am afraid that Microsoft Graph is not yet supported in user control.
And here are some useful links you can refer to.
Windows Graph Controls
Microsoft Graph: Developer Blog
Best Regards,
Daniel Zhang

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Answer 2

Try using if(!DesignMode) to exclude portions of code that cannot be executed at design stage.