Develop Reference

Entity Framework - How do I combine data from a database and something else, like WMI?

I am playing around with writing a simple app that asks the ServerManager in Microsoft.Web.Administration for a list of web sites configured on the local machine and then combines that with some annotations in some sort of database.
namespace ListWebsites.Models
{
public class Site
{
public int ID { get; set; }
public string Hostname { get; set; }
public string Protocol { get; set; }
public int? Port { get; set; }
public string Comments { get; set; }
}
public class SiteDBContext : DbContext
{
public DbSet<Site> Sites { get; set; }
public void GetSiteInfo()
{
using (var server = new ServerManager())
{
var siteinfo = from site in server.Sites
let bindings = site.Bindings.Select(b => new { host = b.Host, protocol = b.Protocol, port = b.EndPoint?.Port })
select new { site.Name, bindings };
}
}
}
}
I want ID, Comments to come from a database and HostName, Protocol and Port to come from ServerManager.
My brain is broken trying to figure out what the right way to do this is? Should I combine the data inside the SiteDbContext by overriding methods? Should I wrap SiteDBContext in something else that joins the data?
I'm kind of a n00b with Entity Framework...maybe I shouldn't be trying to do this with Entity Framework? Not sure how to google the solution for this.

Deserializing rest client response from wordpress.org

I have a wordpress.org locally hosted on my pc.
I've installed a wordpress plugin called json-api which let you retrieve posts from your wordpress site.
I'm running the following code:
var client = new RestClient(BlogArticlesUrl);
var request = new RestRequest();
request.Timeout = 5000;
request.RequestFormat = DataFormat.Json;
request.Method = Method.GET;
request.AddParameter("json", "get_tag_posts");
request.AddParameter("slug", "featured");
request.AddParameter("count", "3");
var articles = client.Execute<List<BlogArticleModel>>(request);
After executing the code, in the variable articles I have the following:
Inside the Content there are few keys but I would only like to convert 'posts' to a model in c#
How do I acheive that?
EDIT:
I have found a solution using newtonsoft for dot net
Newtonsoft.Json.JsonConvert.DeserializeObject<BlogArticleResponse>(articles.Content);

In RestSharp, the Content is what gets deserialized. So, the type you pass into the .Execute<T> method must be the same structure as the response.
In your case, it will look something like this:
public class BlogArticleResponse
{
public string status { get; set; }
public int count { get; set; }
public int pages { get; set; }
public BlogTag tag { get; set; }
...
}
public class BlogTag
{
public int id { get; set; }
public string slug { get; set; }
public string title { get; set; }
public string description { get; set; }
...
}
You can then execute the request like this:
var result = client.Execute<BlogArticleResponse>(request);
For more information, have a look at the documentation.

PowerBI authentication C#

I am wondering if anyone can assist me, I am having a problem with power bi. What I am trying to do is push some data into Power BI. I am finding it difficult to find an approach were a user can enter there user name and password and then I will be able to push data into the Power BI account.
I am getting stuck at the first hurdle of getting an Access Token. I just keeping bad request. I have also tried getting-started-for-dotnet which for some strange reason I can also not get to work.
Error given is: The remote server returned an error: (401) Unauthorized.
Registered as Web application
public class PowerBICreds
{
public string resourceUri { get; set; }
public string clientID { get; set; }
public string grantType { get; set; }
public string username { get; set; }
public string password { get; set; }
public string scope { get; set; }
public string clientSecret { get; set; }
public string loginAddress { get; set; }
public string baseurl { get; set; }
}
public static string AccessToken(PowerBICreds Creds)
{
StringBuilder Httpbody = new StringBuilder();
Httpbody.Append("resource=" + HttpUtility.UrlEncode(Creds.resourceUri));
Httpbody.Append("&client_id=" + HttpUtility.UrlEncode(Creds.clientID));
Httpbody.Append("&grant_type=" + HttpUtility.UrlEncode(Creds.grantType));
Httpbody.Append("&username=" + HttpUtility.UrlEncode(Creds.username));
Httpbody.Append("&password=" + HttpUtility.UrlEncode(Creds.password));
Httpbody.Append("&scope=" + HttpUtility.UrlEncode(Creds.scope));
Httpbody.Append("&client_secret=" + HttpUtility.UrlEncode(Creds.clientSecret));
using (WebClient web = new WebClient())
{
web.Headers.Add("client-request-id", Guid.NewGuid().ToString());
web.Headers.Add("return-client-request-id", "true");
string jsonstring = web.UploadString(Creds.loginAddress, Httpbody.ToString());
dynamic result = JsonConvert.DeserializeObject(jsonstring);
try
{
return result.access_token;
}
catch
{
}
return null;
}
}
Update when I try the sample to show how to use the Power BI API provided by Mircosoft here https://github.com/PowerBI/getting-started-for-dotnet
Additional technical information:
Correlation ID: f1281ec2-4e09-41e6-8847-3acfd3eb7922
Timestamp: 2015-12-04 22:48:58Z
AADSTS65005: The client application has requested access to resource 'https://analysis.windows.net/powerbi/api'. This request has failed because the client has not specified this resource in its requiredResourceAccess list.

The error you got when using our sample application may mean that the app you registered with AAD doesn't request any permission for Power BI. Try using our new app registration page at http://dev.powerbi.com/apps. If you just want to push data into Power BI, you just need the dataset read/write permission.

Get user profile information via ASP.NET Membership.OpenAuth

Using Microsoft.AspNet.Membership.OpenAuth I've very quickly been able to get an app logging people in via various external provider (facebook, twitter, google, microsoft). That's great.
My question is, can I use this framework to get the users profile information easily? I'd like to get their profile picture, email address, DOB etc if the service has them.
I know there is some extra information in AuthenticationResult.ExtraData however it isn't standard and doesn't contain what I need.
Is there something I can do from here to get the information using Microsoft.AspNet.Membership.OpenAuth (or another .net lib) or will I need to use the access token in ExtraData to access the different services manually via the separate service APIs?
Thanks

There are two main issues to overcome with the authentication workflow stuff. One, as the OP rightly pointed out concerns the contents of ExtraData and the other concerns the permissions that you need to ask Facebook for. In the end I went with the DotNetOpenAuth library rather than the Microsoft one but extended it in certain places by rolling my own classes and borrowing parts of the framework where necessary.
The first thing I did was create a FacebookClient that extended the OAuth2Client from DotNetOpenAuth and allowed me to pass in a value for scope, which got past the limitation on which data you could request from Facebook. The permission I ask for are publish_stream, manage_pages, email, user_interests. They simply get appended to the service login URL and passed across to Facebook. The useful method within my implementation of OAuth2Client is GetUserData:
protected override IDictionary<string, string> GetUserData(string accessToken)
{
var token = accessToken.EscapeUriDataStringRfc3986();
FacebookGraphData graphData;
var request = WebRequest.Create(string.Format("https://graph.facebook.com/me?access_token={0}", token));
using (var response = request.GetResponse())
{
using (var responseStream = response.GetResponseStream())
{
graphData = JsonHelper.Deserialize<FacebookGraphData>(responseStream);
}
}
var userData = new Dictionary<string, string> {{"accessToken", accessToken}};
userData.AddItemIfNotEmpty("id", graphData.Id);
userData.AddItemIfNotEmpty("name", graphData.Name);
userData.AddItemIfNotEmpty("email", graphData.Email);
userData.AddItemIfNotEmpty("firstName", graphData.FirstName);
userData.AddItemIfNotEmpty("lastName", graphData.LastName);
userData.AddItemIfNotEmpty("link", graphData.Link == null ? null : graphData.Link.AbsoluteUri);
userData.AddItemIfNotEmpty("username", graphData.Username);
userData.AddItemIfNotEmpty("gender", graphData.Gender);
userData.AddItemIfNotEmpty("locale", graphData.Locale);
FacebookFriendData friendData;
request = WebRequest.Create(string.Format("https://graph.facebook.com/me/friends?access_token={0}", token));
using (var response = request.GetResponse())
{
using (var responseStream = response.GetResponseStream())
{
friendData = JsonHelper.Deserialize<FacebookFriendData>(responseStream);
}
}
if (friendData.Friends != null)
{
userData.Add("connections", friendData.Friends.Count().ToString());
}
return userData;
}
I've basically created a few data classes that are deserialized when the response comes back from Facebook. I can also make any other Graph API calls from here that I need. Serialization classes look like this:
[DataContract]
public class FacebookFriendData
{
[DataMember(Name = "data")]
public IEnumerable<Friend> Friends { get; set; }
}
[DataContract]
public class Friend
{
[DataMember(Name = "id")]
public string Id { get; set; }
[DataMember(Name = "name")]
public string Name { get; set; }
}
[DataContract]
public class FacebookGraphData
{
[DataMember(Name = "id")]
public string Id { get; set; }
[DataMember(Name = "name")]
public string Name { get; set; }
[DataMember(Name = "email")]
public string Email { get; set; }
[DataMember(Name = "first_name")]
public string FirstName { get; set; }
[DataMember(Name = "last_name")]
public string LastName { get; set; }
[DataMember(Name = "link")]
public Uri Link { get; set; }
[DataMember(Name = "username")]
public string Username { get; set; }
[DataMember(Name = "gender")]
public string Gender { get; set; }
[DataMember(Name = "locale")]
public string Locale { get; set; }
}
As per #radm4 I still check the provider string to decide which methods to call in certain places - still working on a more elegant solution to that one...

After looking around I can't see a way to do this only with the Microsoft.AspNet.Membership.OpenAuth stuff.
My solution has been to skip the .NET oauth stuff if the user wants to use facebook. In this case I use the facebook C# SDK to authenticate and then I can access email, birthday, photo etc.
if(provider != "facebook")
{
//do normal oauth
}
else
{
FacebookClient client = new FacebookClient();
var loginUrl = client.GetLoginUrl(new
{
client_id = ConfigurationManager.AppSettings["facebookId"],
client_secret = ConfigurationManager.AppSettings["facebookClientSecret"],
redirect_uri = redirectUrl,
response_type = "code",
scope = "email,user_birthday"
});
Response.Redirect(loginUrl.AbsoluteUri);
}
When the user returns you can then use the SDK to access this extra information.
I'm going to add this type of thing for Google too. If users want to use other services to log in they can but I'll just use asp.net oauth and they won't get as customised an experience as facebook or google until I have more time to spend on each provider.
So basically the answer is ASP.net oauth is fine for logging in and very basic information but if you need more you'll need to extend or by pass it for each provider.

How to read custom data type

I was created this return from WCF and may i know how could i read the data specifically ??
[DataContract]
public class UserData
{
[DataMember]
public int userID { get; set; }
[DataMember]
public string name { get; set; }
[DataMember]
public string email { get; set; }
[DataMember]
public string contact { get; set; }
[DataMember]
public string status { get; set; }
}
This is WCF side and returning from WCF, i want to read this from Window phone. may i know is there some example ? Thank you for reply
Update
The code in phone part where i want to use the data
private Service1Client _serviceClient;
public Login()
{
InitializeComponent();
_serviceClient = new Service1Client();
_serviceClient.LoginUserCompleted += new EventHandler<LoginUserCompletedEventArgs>(_serviceClient_LoginUserCompleted);
}
private void loginBtn_Click(object sender, RoutedEventArgs e)
{
_serviceClient.LoginUserAsync(txtEmail.Text, txtPassword.Password);
}
private void _serviceClient_LoginUserCompleted(object sender, LoginUserCompletedEventArgs e)
{
if (e.Error == null && e.Result != null)
{
(App.Current as App).MyUserID = 16;
MessageBox.Show("Welcome " + e.Result + "!");
//ContentPanel.Visibility = Visibility.Collapsed;
//Data.Visibility = Visibility.Visible;
//Testing.ItemsSource = e.Result;
Wondering how could i make this few line of code to read the data accordingly, make it into list or can be extract specific data and currently this few lines of codes giving me this answer ::
WCFReference.UserData
}
else
{
MessageBox.Show(e.Error.InnerException.Message + " Couldn't Login, Please try again =D");
}
}

If you are using the SOAP protocol you could either build an WSDL to describe the webservice or you could create the custom class right on the client based on your knowledge of the webservice.
If you are using the REST protocol (Which would be the best alternative for an WP7 Application) you have to create the class on the client based on your knowledge because there are no such thing as WSDL that can describe an REST webservice.
Here is an start for you.
public class UserData
{
public int userID { get; set; }
public string name { get; set; }
public string email { get; set; }
public string contact { get; set; }
public string status { get; set; }
}
Now you just have to parse the response from the webservice request as an UserData class and whoala you are all set.
And as some people pointed out, you can use the webservice as an service reference if you prefer that but sometimes it just messes things up.

You can consume exposed web services by creating service reference (proxy).
Check out following URLs
BLOG
POST
MSDN
LINK