private async Task LoadDataAsync()
{
try
{
// we need to ask for credentials
var loginVm = new LoginVm();
if (interactionService.ShowInDialog(loginVm) == true)
{
// performing login
var userId = await dataService.LoginAsync(loginVm.UserName, loginVm.Password);
// setting content to general view model, which is the payload of our app
Content = new GeneralVm(userId, dataService);
}
else
{
// setting content to stub, which shows us "Login cancelled" message
Content = new StubVm {
Message = "Login cancelled"
};
}
}
catch (Exception ex)
{
// setting content to stub, which shows us "Login failed" message
Content = new StubVm {
Message = $"Login failed: {ex.Message}"
};
}
}