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Free ASP.NET 4.5.2 Hosting Kuwait - HostForLIFE.eu :: How to use ASP.NET Chart ?

clock June 24, 2014 07:04 by author Peter

Today, I want to explain how to use Chart in ASP.NET 4.5.2, in Data Section. When you want to display your data with graphic and chart, you can use Chart. The Chart can render an image that displays data in a variety of chart types. Chart can render more than 30 types of charts, including all the types of charts that you might be familiar with from Microsoft Excel or other tools (area charts, bar charts, column charts, line charts, and pie charts, along with more specialized charts like stock charts).

And here is the Table Design.


And Here is the Code

<body>
    <form id="form1" runat="server">
        <div>
      
<asp:Chart ID="Chart1" runat="server" BorderlineWidth="0" Width="550px">
       
<Series>
       
<asp:Series Name="Series1" XValueMember="Year" YValueMembers="Jan" LegendText="Jan"   IsValueShownAsLabel="false" ChartArea="ChartArea1" MarkerBorderColor="#DBDBDB"></asp:Series>
       
<asp:Series Name="Series2" XValueMember="Year" YValueMembers="Feb" LegendText="Feb" IsValueShownAsLabel="false" ChartArea="ChartArea1" MarkerBorderColor="#DBDBDB"></asp:Series>
        
<asp:Series Name="Series3" XValueMember="Year" YValueMembers="March" LegendText="March" IsValueShownAsLabel="false" ChartArea="ChartArea1" MarkerBorderColor="#DBDBDB"></asp:Series>
        
<asp:Series Name="Series4" XValueMember="Year" YValueMembers="April" LegendText="April" IsValueShownAsLabel="false" ChartArea="ChartArea1" MarkerBorderColor="#DBDBDB"></asp:Series>
         
<asp:Series Name="Series5" XValueMember="Year" YValueMembers="May" LegendText="May" IsValueShownAsLabel="false" ChartArea="ChartArea1" MarkerBorderColor="#DBDBDB"></asp:Series>        

  </
Series>
            <
Legends>
           
<asp:Legend Title="Month"></asp:Legend>
               
</Legends>
               
<Titles>
                   
<asp:Title Docking="Bottom" Text="Percentage"></asp:Title>
               
</Titles>
               
<ChartAreas>
                   
<asp:ChartArea Name="ChartArea1"></asp:ChartArea>
              
</ChartAreas>
           
</asp:Chart>
       
</div>
   
</form>
</
body>

Aspx.Cs coding
SqlConnection
con = new SqlConnection("Your Connection String");
   
protected void Page_Load(object sender, EventArgs e)
    {
       
if (!IsPostBack)
        {
            FetchReportData();
        }
    }
  
public void FetchReportData()
    {
       
SqlCommand cmd = new SqlCommand("select * from Percentage",con);
       
SqlDataAdapter da = new SqlDataAdapter(cmd);
       
DataSet ds = new DataSet();
        da.Fill(ds);              
        Chart1.DataSource = ds;       
        Chart1.DataBind();
  

}



Free ASP.NET 4.5.2 Hosting in United Arab Emirates - HostForLIFE.eu

clock June 9, 2014 11:37 by author Peter

ASP.NET is a powerful programming interface and server side scripting application based on the Windows operating system. In this article We would like to share about how to select the suitable ASP.NET 4.5.2 Hosting plan in United Arab Emirates.

On choosing the ASP.NET web hosting providers, it recommended to search for a hosting provider that offers the latest hosting technology. ASP.NET 4.5.2 hosting normally comes with a Plesk control panel so that you are able to manage the ASP.NET websites and applications that you have under your web hosting account with ease from a web based control panel.  You can use Plesk to setup and configure Microsoft SQL Server 2012/2014 databases in your hosting account as well as to set permissions on any files that you have hosted on ASP.NET 4.5.2 hosting account.

A good ASP.NET hosting provider will offer complete hosting package that provides database server software, scripting software, web content management system and reliable support for you whenever you facing any hosting issues.

Windows & ASP.NET 4.5.2 Hosting in United Arab Emirates ensure that the websites are functioning well without any problems. Web hosting company provides efficient services for problem solving and updating of websites. We also make available the maximum space on the server so that you can host multiple websites on the server at the same time without paying anything extra.

Why do you choose HostForLIFE.eu as ASP.NET Hosting Solution in United Arab Emirates ?

HostForLIFE.eu stands out as one of the best shared hosting accounts on the Windows and ASP.NET Hosting with as low as €3.00  per/month you can host unlimited websites and unlimited space on our shared hosting account. Here is the following features on HostForLIFE.eu’s ASP.NET Hosting plan:

  • Unlimited Domain, Unlimited Diskspace and Unlimited Bandwidth
  • Windows Server 2008 and Windows Server 2012
  • ASP.NET Classic, ASP.NET 1.1, ASP.NET  2.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2 support
  • ASP.NET Ajax support
  • ASP.NET MVC 2.0 – MVC 5.2 support
  • SQL Server 2008, 2012, and SQL Server 2014 support
  • Plesk Control Panel
  • Full Trust & Dedicated Pool
  • PHP 5.5 Support
  • Ultra Fast Server
  • 24/7 Antivirus Scanning and 24/7 Windows Firewall Scanning

One unique feature apart HostForLIFE is our customer care service. With personnel ready to chat with you no matter the time, it is a big advantage over our competitors. Our quick response to your questions and concerns also makes them the best on the market. With our 24/7/365 days support team in place, you will know you are getting the best value for your money. We also have an easy to use website to help you make the right choice of web hosting package so you can experience an equally easy web hosting process.

You have a 30 days money back guarantee policy from HostForLIFE.eu. You get the chance to try our services for the 30 days period and if not satisfied, you will have your money back with no questions asked.



European ASP.NET 4.5 Cloud Hosting - Germany :: Claims-Based Security in ASP.NET 4.5

clock June 5, 2014 10:42 by author Scott

When you talk about authentication in ASP.NET you will most undoubtedly hear the mention of the MembershipProvider. I'm here to tell you not to go down that road. That road will only lead to tears and suffering. This post will help you understand and implement your ASP.NET authentication built on top of FormsAuthentication. I hope you take away that building this stuff is not hard as long as you don't try to over think it.

Before I show you how to implement a kick-butt authentication system, I'll show you the simplest solution you could build.

FormsAuthentication.SetAuthCookie(user.Id, createPersistentCookie: true);

Congratulations you are now officially signed into your ASP.NET application using forms authentication. Notice I don't have any SQL migrations, crazy classes, or any other crap you didn't ask for.

 

The code above writes a cookie to the response of the current HttpContext. On the user's next request that cookie will be passed back to the server and used to check whether they are authenticated or not.

Password Hasher

Hashing passwords is really easy with .NET. The trick is to generate a salt with every password. The idea of the salt is not to be a secret, but to be unique every time. This makes it difficult for hackers to process all your passwords in the case your system is compromised. This is my standard password hasher:

public static class PasswordHasher {
    private const int SaltSize = 64;

    public static Passphrase Hash(string password) {
        if (password == null) throw new ArgumentNullException("password");

        byte[] passwordBytes = Encoding.Unicode.GetBytes(password);
        byte[] saltBytes = CreateRandomSalt();
        string hashedPassword = ComputeHash(passwordBytes, saltBytes);

        return new Passphrase {
            Hash = hashedPassword,
            // Convert salt from byte[] to string
            Salt = Convert.ToBase64String(saltBytes)
        };
    }

    public static bool Equals(string password, string salt, string hash) {
        return String.CompareOrdinal(hash, Hash(password, salt)) == 0;
    }

    public static string GenerateRandomSalt(int size = SaltSize) {
        return Convert.ToBase64String(CreateRandomSalt(size));
    }

    private static string ComputeHash(byte[] password, byte[] salt) {
        var passwordAndSalt = new byte[salt.Length + password.Length];

        Buffer.BlockCopy(salt, 0, passwordAndSalt, 0, salt.Length);
        Buffer.BlockCopy(password, 0, passwordAndSalt, salt.Length, password.Length);
        byte[] computedHash;
        using (HashAlgorithm algorithm = new SHA256Managed()) {
            computedHash = algorithm.ComputeHash(passwordAndSalt);
        }
        return Convert.ToBase64String(computedHash);
    }

    private static string Hash(string password, string salt) {
        return ComputeHash(Encoding.Unicode.GetBytes(password), Convert.FromBase64String(salt));
    }

    private static byte[] CreateRandomSalt(int size = SaltSize) {
        if (size <= 0)
            throw new ArgumentException("size must be greater than zero.");

        var saltBytes = new Byte[size];
        using (var rng = new RNGCryptoServiceProvider()) {
            rng.GetBytes(saltBytes);
        }
        return saltBytes;
    }
}

public class Passphrase {
    public string Hash { get; set; }
    public string Salt { get; set; }
}

Principal and Identity

The IPrincipal and IIdentity interfaces are crucial to authentication in .NET. If you have ever used HttpContext, WebForms, or ASP.NET MVC then you are using derivations of these interfaces. It usually comes in the guise of a User property. You don't have to implement these classes, you can always use the GenericPrincipal and GenericIdentity. I like to implement them myself, because it allows me to pass a bit more useful data around in the cookie (remember cookies have size limits).

Let's first look at the IPrinicipal implementation:

public class MuchoPrincipal : IPrincipal {
    private readonly MuchoIdentity _identity;

    public MuchoPrincipal(MuchoIdentity identity) {
        _identity = identity;
    }

    #region IPrincipal Members

    public bool IsInRole(string role) {
        return
            _identity.Roles.Any(
                current => string.Compare(current, role, StringComparison.InvariantCultureIgnoreCase) == 0);
    }

    public IIdentity Identity {
        get { return _identity; }
    }

    public MuchoIdentity Information {
        get { return _identity; }
    }

    public bool IsUser {
        get { return !IsGuest; }
    }

    public bool IsGuest {
        get { return IsInRole("guest"); }
    }

    #endregion
}

Next up is the IIdentity, just take a look:

public class MuchoIdentity : IIdentity {
    public MuchoIdentity(FormsAuthenticationTicket ticket) {
        if (ticket == null) {
            Name = "Guest";
            Roles = new List<string> { "guest" };
            return;
        }

        var data = JsonConvert.DeserializeObject<MuchoCookie>(ticket.UserData);

        if (data == null) {
            AsGuest();
            return;
        }

        Id = data.Id;
        FirstName = data.FirstName;
        LastName = data.LastName;
        Name = string.IsNullOrWhiteSpace(FirstName) || string.IsNullOrWhiteSpace(LastName)
                   ? data.Email
                   : "{0} {1}".With(FirstName, LastName);
        Email = data.Email;
        Roles = data.Roles ?? new List<string> { "user" };
        RememberMe = data.RememberMe;

        try {
            TimeZone = TimeZoneInfo.FindSystemTimeZoneById(data.TimeZone);
        } catch (Exception) {
            TimeZone = TimeZoneInfo.Utc;
        }
    }

    public MuchoIdentity(User user) {
        if (user == null) {
            AsGuest();
            return;
        }

        Id = user.Id;
        Email = user.Email;
        FirstName = user.FirstName;
        LastName = user.LastName;
        Name = string.IsNullOrWhiteSpace(FirstName) || string.IsNullOrWhiteSpace(LastName)
                   ? user.Email
                   : "{0} {1}".With(FirstName, LastName);

        try {
            TimeZone = TimeZoneInfo.FindSystemTimeZoneById(user.TimeZone);
        } catch (Exception) {
            TimeZone = TimeZoneInfo.Utc;
        }
        Roles = new List<string> { user.Role ?? "user" };
    }

    private void AsGuest() {
        Name = "Guest";
        Roles = new List<string> { "guest" };
    }

    public int Id { get; set; }
    public string Email { get; set; }
    public string FirstName { get; set; }
    public string LastName { get; set; }
    public TimeZoneInfo TimeZone { get; set; }
    public bool RememberMe { get; set; }
    public IList<string> Roles { get; set; }

    #region IIdentity Members

    public string AuthenticationType {
        get { return "MuchoForms"; }
    }

    public bool IsAuthenticated {
        get { return !( Id == 0 || string.IsNullOrWhiteSpace(Email)); }
    }

    public string Name { get; protected set;

    #endregion
}

C is for Cookie

The cookie object is really just a data transfer object. Nothing really mind blowing here. I usually create a structure to store my useful information. Again, keep in mind the size limitations of a cookie which is about 4kb (4096 bytes).

public class MuchoCookie {
    public MuchoCookie() {
        Roles = new List<string>();
    }

    public int Id { get; set; }
    public string Email { get; set; }
    public string FirstName { get; set; }
    public string LastName { get; set; }
    public string TimeZone { get; set; }
    public List<string> Roles { get; set; }
    public bool RememberMe { get; set; }
}

FormsAuthenticationService

FormsAuthentication is built right into ASP.NET, but I like to write a littler wrapper around it so I can test and inject it into other classes. Also I create the cookie from the previous section when a user successfully signs in.

public class FormsAuthenticationService : IFormsAuthenticationService {
    private readonly HttpContextBase _httpContext;

    public FormsAuthenticationService(HttpContextBase httpContext) {
        _httpContext = httpContext;
    }

    #region IFormsAuthenticationService Members

    public void SignIn(User user, bool createPersistentCookie) {
        if (user == null)
            throw new ArgumentNullException("user");

        var cookie = new MuchoCookie {
            Id = user.Id,
            Email = user.Email,
            FirstName = user.FirstName,
            LastName = user.LastName,
            RememberMe = createPersistentCookie,
            TimeZone = user.TimeZone,
            Roles = new List<string> { user.Role ?? "user" }
        };

        string userData = JsonConvert.SerializeObject(cookie);
        var ticket = new FormsAuthenticationTicket(1, cookie.Email, DateTime.Now,
                                                   DateTime.Now.Add(FormsAuthentication.Timeout),
                                                   createPersistentCookie, userData);
        string encTicket = FormsAuthentication.Encrypt(ticket);
        var httpCookie = new HttpCookie(FormsAuthentication.FormsCookieName, encTicket) { Expires = DateTime.Now.Add(FormsAuthentication.Timeout) };

        _httpContext.Response.Cookies.Add(httpCookie);
    }

    public void SignOut() {
        // Not worth covering, has been tested by Microsoft
        FormsAuthentication.SignOut();
    }

    #endregion
}

Notice the SignIn method creates the cookie and just writes it to the response using FormsAuthentication. We are leveraging what ASP.NET gives us. There is no reason to reinvent the wheel when it comes to passing secure cookies to the client.

PrincipalService

The principal service helps us get the information out of a cookie and rehydrate our IPrinipal and our IIdentity to our custom implementations. The other added benefit is we can actually set the User property to a Guest principal with extra information if we need it.

public class MuchoSupportPrincipalService : IPrincipalService {
    private readonly HttpContextBase _context;

    public MuchoSupportPrincipalService(HttpContextBase context) {
        _context = context;
    }

    #region IPrincipalService Members

    public IPrincipal GetCurrent() {
        IPrincipal user = _context.User;
        // if they are already signed in, and conversion has happened
        if (user != null && user is MuchoPrincipal)
            return user;

        // if they are signed in, but conversion has still not happened
        if (user != null && user.Identity.IsAuthenticated && user.Identity is FormsIdentity) {
            var id = (FormsIdentity)_context.User.Identity;

            var ticket = id.Ticket;
            if (FormsAuthentication.SlidingExpiration) 
                ticket = FormsAuthentication.RenewTicketIfOld(ticket);

            var fid = new MuchoIdentity(ticket);
            return new MuchoPrincipal(fid);
        }

        // not sure what's happening, let's just default here to a Guest
        return new MuchoPrincipal(new MuchoIdentity((FormsAuthenticationTicket)null));
    }

    #endregion
}

The trick here is just to check the current context for the cookie already being passed in with our request. You need to call this code from your Global.asax as such (note I am using ASP.NET MVC and the dependency resolver built into it).

protected void Application_AuthenticateRequest(object sender, EventArgs e) {
    var principalService = DependencyResolver.Current.GetService<IPrincipalService>();
    var context = DependencyResolver.Current.GetService<HttpContextBase>();
    // Set the HttpContext's User to our IPrincipal
    context.User = principalService.GetCurrent();
}

Usage in Your Code

This is what my ASP.NET MVC controller looks like:

[RequireScheme(Scheme.Https)]
public class AuthenticationController : ApplicationController {
public ActionResult Login(string returnUrl) {

if (User.Identity.IsAuthenticated) {
if (!string.IsNullOrWhiteSpace(returnUrl))
return Redirect(returnUrl);

return RedirectToAction("show", "dashboard");
}

var model = new LoginModel {
ReturnUrl = returnUrl
};

return View(model);
}

[HttpPost]
public ActionResult Login(LoginModel input) {
// validation does password hash check
// you could do it more explicitly
if (ModelState.IsValid) {
Logger.Info("successful!", input.Username);
var user = Db.Users
.FirstOrDefault(u => u.Email == input.Username);
// set cookie
Forms.SignIn(user, input.RememberMe);
return input.HasReturnUrl(Url)
? Redirect(input.ReturnUrl)
: (ActionResult) RedirectToAction("show", "dashboard");
}

Flash.Error("Please try again");

return View("login", input);
}

public ActionResult Logout() {
Forms.SignOut();
return RedirectToAction("login");
}
}

Conclusion

The parts of an authentication system are all infrastructural. It is all smooth sailing once you get over the hump of setting it up. Once the infrastructure is set up you can work on creating your own tables for Users, Profiles, or any other domain model that makes sense. All access to user's is up to you, so feel free to use any data access provider you like: SQL Server, RavenDB, MongoDB, etc. Additionally, the cookie is now yours; feel free to add or remove data from it as you see fit, but always remember the 4kb size limit.



HostForLIFE.eu Announces Release of Cheap Dedicated Windows Cloud Server Hosting Plans

clock June 3, 2014 08:58 by author Peter

European leading web hosting provider, HostForLIFE.eu announced cheap dedicated Windows cloud server due to high demand of Windows cloud server users in Europe.

Windows & ASP.NET hosting provider HostForLIFE.eu announced cheap dedicated Windows cloud server hosting plans. HostForLIFE.eu offers the ultimate performance and flexibility at an economical price for windows cloud server. HostForLIFE.eu cheap dedicated Windows cloud server hosting plans starts from just as low as €16.00/month only.

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HostForLIFE’s cheap dedicated Windows Dedicated Cloud Server hosting plan comes with the following features: Windows 2008R2/2012, Data Center OS Version, 1 x vCPU, 1 GB RAM, You have full root access to the server 24/7/365, 40 GB Storage (SSD), 1000 GB Bandwidth, 1000 Mbps Connection, 1 Static IP and SAN Storage.

For additional information on this cheap Windows dedicated cloud server Hosting plan, please visit http://hostforlife.eu/European-Cheap-Windows-Cloud-Server-Plans

About HostForLIFE.eu:
HostForLIFE.eu is European Windows Hosting Provider which focuses on Windows Platform only. HostForLIFE.eu deliver on-demand hosting solutions including Shared hosting, Reseller Hosting, Cloud Hosting, Dedicated Servers, and IT as a Service for companies of all sizes.

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About HostForLIFE.eu

HostForLIFE.eu is European Windows Hosting Provider which focuses on Windows Platform only. We deliver on-demand hosting solutions including Shared hosting, Reseller Hosting, Cloud Hosting, Dedicated Servers, and IT as a Service for companies of all sizes.

We have offered the latest Windows 2012 Hosting, ASP.NET 4.5 Hosting, ASP.NET MVC 4 Hosting, ASP.NET MVC 5 Hosting and SQL 2014 Hosting.


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