اندروید به توسعه دهندگان اجازه می‌دهد تا مجوزهای خود را ساخته و آنها را اجرا کنند. همانند مجوزهای سیستمی که پلتفرم آنها را بررسی می‌کند، شما باید خواص و برچسب‌های مورد نیاز را در فایل AndroidManifest.xml اعلام کنید. اگر برنامه‌ای می‌نویسید که یک نوعِ خاص از قابلیت دسترسی توسط توسعه دهندگان را فراهم می‌کند، شما می‌توانید برای حفاظت از توابع با مجوزهای سفارشی خود، مانع دسترسی‌های غیرمجاز شوید. به کدی که در فایل AndroidMainfest درج شده دقت نمایید:

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="net.zenconsult.mobile.testapp" >
<permission android:name="net.zenconsult.mobile.testapp.permission.PURGE_DATABASE"
android:label="@string/label_purgeDatabase"
android:description="@string/description_purgeDatabase"
android:protectionLevel="dangerous" />
...
</manifest>

// Enable the application to use a cookie to store information for the signed in user
// and to use a cookie to temporarily store information about a user logging in with a third party login provider
// Configure the sign in cookie
app.UseCookieAuthentication(newCookieAuthenticationOptions {
    AuthenticationType = DefaultAuthenticationTypes.ApplicationCookie,
    LoginPath = newPathString("/Account/Login"),
    Provider = newCookieAuthenticationProvider {
        OnValidateIdentity = SecurityStampValidator.OnValidateIdentity<ApplicationUserManager, ApplicationUser>(
            validateInterval: TimeSpan.FromSeconds(5),
            regenerateIdentity: (manager, user) => user.GenerateUserIdentityAsync(manager))
    }
});

امکان سفارشی کردن کلید‌های اصلی Users و Roles

de Snippet
publicclassApplicationUser : IdentityUser<int, CustomUserLogin, CustomUserRole, CustomUserClaim>
{
}
publicclassCustomRole : IdentityRole<int, CustomUserRole>
{
    public CustomRole() { }
    public CustomRole(string name) { Name = name; }
}
publicclassCustomUserRole : IdentityUserRole<int> { }
publicclassCustomUserClaim : IdentityUserClaim<int> { }
publicclassCustomUserLogin : IdentityUserLogin<int> { }
 
publicclassApplicationDbContext : IdentityDbContext<ApplicationUser, CustomRole, int, CustomUserLogin, CustomUserRole, CustomUserClaim>
{
}

پشتیبانی از IQueryable روی Users و Roles

//
// GET: /Users/
public async Task<ActionResult> Index()
{
    return View(await UserManager.Users.ToListAsync());
}

پشتیبانی از عملیات Delete از طریق UserManager

var user = await UserManager.FindByIdAsync(id);

if (user == null)
{
    return HttpNotFound();
}

var result = await UserManager.DeleteAsync(user);

میان افزار UserManagerFactory

// Configure the UserManager
app.UseUserManagerFactory(newUserManagerOptions<ApplicationUserManager>()
{
    DataProtectionProvider = app.GetDataProtectionProvider(),
    Provider = newUserManagerProvider<ApplicationUserManager>()
    {
        OnCreate = ApplicationUserManager.Create
    }
});

HttpContext.GetOwinContext().GetUserManager<ApplicationUserManager>();

میان افزار DbContextFactory

app.UseDbContextFactory(ApplicationDbContext.Create);

Samples

Button btn = FindViewById<Button>(Resource.Id.button1);

FindViewById<EditText>(Resource.Id.txtname).Text = "";

Intent _intent = new Intent(this, typeof(Activity2));
StartActivity(_intent);

Intent _intent = new Intent(this, typeof(Activity2));
string Test="Vlaueone";

_intent.PutExtra("mainactivity", Test);
StartActivity(_intent);

string Getintent = Intent.GetStringExtra("mainactivity");

List<Product> products;
products = new List<Product>();
Product p = new Product
            {

                name = FindViewById<EditText>(Resource.Id.mainedittextname).Text,
                price = Convert.ToInt32(FindViewById<EditText>(Resource.Id.mainedittextprice).Text)
            };
products.Add(p);
Intent _intent = new Intent(this, typeof(Activity2));
_intent.PutExtra("products", JsonConvert.SerializeObject(products));
StartActivity(_intent);

var p = JsonConvert.DeserializeObject<List<Product>>(Intent.GetStringExtra("products"));
foreach (var item in p)
{
   Toast.MakeText(this, $" {item.name} , {item.price}",
                  ToastLength.Long).Show();
};

//set alert for executing the task
AlertDialog.Builder alert = new AlertDialog.Builder(this);
alert.SetTitle("Confirm delete");
alert.SetMessage("Lorem ipsum dolor sit amet, consectetuer adipiscing elit.");
alert.SetPositiveButton("Delete", (senderAlert, args) =>
            {
                Toast.MakeText(this, "Deleted!", ToastLength.Short).Show();
            });

alert.SetNegativeButton("Cancel", (senderAlert, args) =>
            {
                Toast.MakeText(this, "Cancelled!", ToastLength.Short).Show();
            });

Dialog dialog = alert.Create();
dialog.Show();

public class DialogFragmentActivity : DialogFragment
{
        public override View OnCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
        {
            var dlg = inflater.Inflate(Resource.Layout.layoutDialog, container, false);
            return dlg;
        }
}

DialogFragmentActivity dlg = new DialogFragmentActivity ();
dlg.Show(this.FragmentManager, "Fragment");

public override void OnStart()
{
            base.OnStart();
            Dialog dialog = Dialog;
            if (dialog != null)
            {
                dialog.Window.SetLayout(ViewGroup.LayoutParams.MatchParent, ViewGroup.LayoutParams.WrapContent);
                dialog.Window.SetBackgroundDrawable(new ColorDrawable(Color.Transparent));
            }
}

public override Dialog OnCreateDialog(Bundle savedInstanceState)
{
            Dialog NotTitle = base.OnCreateDialog(savedInstanceState);
            NotTitle.Window.RequestFeature(WindowFeatures.NoTitle);

            return NotTitle;
}

SELECT DEPARTMENTNAME, GENDER, COUNT(1) AS COUNT FROM DBO.DIMEMPLOYEE GROUP BY DEPARTMENTNAME,GENDER ORDER BY DEPARTMENTNAME,GENDER

<rule name="RewriteUserFriendlyURL1" stopProcessing="true">
  <match url="^([^/]+)/?$" />
  <conditions>
     <add input="{URL}" negate="true" pattern="\.png$" />
  </conditions>
</rule>

 private string _name;
        public string Name
        {
            get { return _name; }
            set
            {
                _name = value;
                OnPropertyChanged("Name");
            }
        }
        public event PropertyChangedEventHandler PropertyChanged;

        private void OnPropertyChanged(string property)
        {
            if (PropertyChanged != null)
            {
                PropertyChanged(this, new PropertyChangedEventArgs(property));
            }
        }

  public partial class MainWindow : Window
    {
        private Person person;
        public MainWindow()
        {
            InitializeComponent();
            person = Person.GetPerson();
            DataContext = person;

        }

        private void Button_Click(object sender, RoutedEventArgs e)
        {
            person.Name = "Leonardo Decaperio";
        }  
    }

 private string _name;
        public string Name
        {
            get { return _name; }
            set
            {
                _name = value;
                OnPropertyChanged();
            }
        } 

  private void OnPropertyChanged([CallerMemberName] string property="")
        {
            if (PropertyChanged != null)
            {
                PropertyChanged(this, new PropertyChangedEventArgs(property));
            }
        }

OnPropertyChanged();

    public static class ApmWrapper
    {
        public static Task<int> ReadAsync(this Stream stream, byte[] data, int offset, int count)
        {
            return Task<int>.Factory.FromAsync(stream.BeginRead, stream.EndRead, data, offset, count, null);
        }
    }

using System;
using System.IO;
using System.Threading.Tasks;

namespace Async06
{
    public static class ApmWrapper
    {
        public static Task<int> ReadAsync(this Stream stream, byte[] data, int offset, int count)
        {
            return Task<int>.Factory.FromAsync(stream.BeginRead, stream.EndRead, data, offset, count, null);
        }
    }

    class Program
    {
        static void Main(string[] args)
        {
            using (var stream = File.OpenRead(@"..\..\program.cs"))
            {
                var data = new byte[10000];
                var task = stream.ReadAsync(data, 0, data.Length);
                Console.WriteLine("Read bytes: {0}", task.Result);
            }
        }
    }
}

using (var stream = File.OpenRead(@"..\..\program.cs"))
{
    var data = new byte[10000];
    var task = stream.ReadAsync(data, 0, data.Length);
    task.ContinueWith(t => Console.WriteLine("Read bytes: {0}", t.Result)).Wait();
}

    public static class WebClientExtensions
    {
        public static Task<string> DownloadTextTaskAsync(this WebClient web, string url)
        {
            var tcs = new TaskCompletionSource<string>();

            DownloadStringCompletedEventHandler handler = null;
            handler = (sender, args) =>
            {
                web.DownloadStringCompleted -= handler;

                if (args.Cancelled)
                {
                    tcs.SetCanceled();
                }
                else if(args.Error!=null)
                {
                    tcs.SetException(args.Error);
                }
                else
                {
                    tcs.SetResult(args.Result);
                }
            };

            web.DownloadStringCompleted += handler;
            web.DownloadStringAsync(new Uri(url));

            return tcs.Task;
        }
    }