How to access Shared Mail Folder Using Microsoft Graph In .NET Application - asp.net-mvc

Question

I have Generated Microsoft Graph app in ASP.NET MVC platform, that I have downloaded from Microsoft Graph site. I need to access the shared mail folder not sure exactly how can I get that?? In the following code I can access my mailFolder but not shared mailfolder!
public static async Task<IEnumerable<MailFolder>> GetMailFolderAsync()
{
var graphClient = GetAuthenticatedClient();
var mailFolder = await graphClient.Me.MailFolders.Request().GetAsync();
var sharedMailFolder = await graphClient.Users.Request().GetAsync();
return mailFolder;
}
Also, I want to know in above code where I can pass the parameter to access next page or all pages??
private static GraphServiceClient GetAuthenticatedClient()
{
return new GraphServiceClient(
new DelegateAuthenticationProvider(
async (requestMessage) =>
{
string signedInUserId = ClaimsPrincipal.Current.FindFirst(ClaimTypes.NameIdentifier).Value;
SessionTokenStore tokenStore = new SessionTokenStore(signedInUserId,
new HttpContextWrapper(HttpContext.Current));
var idClient = new ConfidentialClientApplication(
appId, redirectUri, new ClientCredential(appSecret),
tokenStore.GetMsalCacheInstance(), null);
var accounts = await idClient.GetAccountsAsync();
var result = await idClient.AcquireTokenSilentAsync(
graphScopes.Split(' '), accounts.FirstOrDefault());
requestMessage.Headers.Authorization =
new AuthenticationHeaderValue("Bearer", result.AccessToken);
}));

Answer 1

I think it is not possible to access shared folders I am investigating as well. In regards to the question of getting pages, as soon as you get the first request
public static async Task<IEnumerable<MailFolder>> GetMailFolderAsync()
{
var graphClient = GetAuthenticatedClient();
var mailFolder = await graphClient.Me.MailFolders.Request().GetAsync();
var sharedMailFolder = await graphClient.Users.Request().GetAsync();
return mailFolder;
}
then you can review for example, mailFolder.NextPageRequest, if it is not null then you can request it by doing mailFolder.NextPageRequest.GetAsync() and you can use it as a loop conditional
while(mailfoldersCollection != null) {
// Do your stuff with items within for(var folder in mailfoldersCollection) {}
// when read all items in CurrentPage then
if (mailFolder.NextPageRequest != null) {
mailfoldersCollection = await mailFolder.NextPageRequest.GetAsync();
}
hope it works for you!