Create CrmServiceClient for ADFS

I've been reading the information I can find about Dynamics 365 and most of the examples show connections using a connection string.

Anyone know why this is?

Before I change to using Connection Strings has anyone connected to ADFS using CrmServiceClient and populating the variables? Something like the following

CrmServiceClient dynamicsService = new CrmServiceClient(new System.Net.NetworkCredential(Username, Password), AuthenticationType.IFD, Url, Port, Organisation, false, true, OrganizationDetail);

Fails for me every time.