C# runs great on Mac, Linux, Android, and iOS (oh, and Windows); is targeted by your favorite editor; rests on a rock solid, time-tested industrial grade platform; and is open source. You want to because C# is an industry leader in language innovation, is your best option for native cross-platform mobile apps, and is toolable beyond compare.
• All .NET application (Console, ASP.NET 4, WinForms, WPF) • Mac and Linux applications (Mono) • UWP (Universal Windows Platform) • ASP.NET Core applications • Can use EF Core in Windows phone and Windows store app
PM> Install-Package Microsoft.EntityFrameworkCore.SqlServer PM> Install-Package Microsoft.EntityFrameworkCore.Tools -Pre PM> Install-Package Microsoft.EntityFrameworkCore.SqlServer.Design
{
"dependencies": {
// same as before
"Microsoft.EntityFrameworkCore.SqlServer": "1.0.0",
"Microsoft.EntityFrameworkCore.Tools": "1.0.0-preview2-final",
"Microsoft.EntityFrameworkCore.SqlServer.Design": "1.0.0"
}
} {
"dependencies": {
// same as before
"Microsoft.EntityFrameworkCore.SqlServer": "1.0.0",
"Microsoft.EntityFrameworkCore.Tools": {
"version": "1.0.0-preview2-final",
"type": "build"
},
"Microsoft.EntityFrameworkCore.SqlServer.Design": {
"version": "1.0.0",
"type": "build"
}
},
"tools": {
// same as before
"Microsoft.EntityFrameworkCore.Tools": {
"version": "1.0.0-preview2-final",
"imports": [
"portable-net45+win8"
]
}
}
} {
"dependencies": {
// same as before
"Microsoft.AspNetCore.Diagnostics.EntityFrameworkCore": "1.0.0"
}
} public void Configure(IApplicationBuilder app, IHostingEnvironment env)
{
if (env.IsDevelopment())
{
app.UseDatabaseErrorPage();
} 
namespace Core1RtmEmptyTest.Entities
{
public class Person
{
public int PersonId { get; set; }
public string FirstName { get; set; }
public string LastName { get; set; }
}
} using Microsoft.EntityFrameworkCore;
namespace Core1RtmEmptyTest.Entities
{
public class ApplicationDbContext : DbContext
{
public ApplicationDbContext(DbContextOptions<ApplicationDbContext> options) : base(options)
{
}
public DbSet<Person> Persons { get; set; }
}
} protected DbContext()
: this((DbContextOptions) new DbContextOptions<DbContext>())
{
}
public DbContext([NotNull] DbContextOptions options)
{
// …
} using Microsoft.EntityFrameworkCore;
namespace Core1RtmEmptyTest.Entities
{
public class ApplicationDbContext : DbContext
{
public DbSet<Person> Persons { get; set; }
protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
{
optionsBuilder.UseSqlServer(@"... connection string ...");
}
}
} {
"ConnectionStrings": {
"ApplicationDbContextConnection": "Data Source=(local);Initial Catalog=TestDbCore2016;Integrated Security = true"
}
} public class Startup
{
public IConfigurationRoot Configuration { set; get; }
public Startup(IHostingEnvironment env)
{
var builder = new ConfigurationBuilder()
.SetBasePath(env.ContentRootPath)
.AddJsonFile("appsettings.json", reloadOnChange: true, optional: false)
.AddJsonFile($"appsettings.{env}.json", optional: true);
Configuration = builder.Build();
}
public void ConfigureServices(IServiceCollection services)
{
services.AddSingleton<IConfigurationRoot>(provider => { return Configuration; });
services.AddDbContext<ApplicationDbContext>(options =>
{
options.UseSqlServer(Configuration["ConnectionStrings:ApplicationDbContextConnection"]);
}); using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Configuration;
namespace Core1RtmEmptyTest.Entities
{
public class ApplicationDbContext : DbContext
{
private readonly IConfigurationRoot _configuration;
public ApplicationDbContext(IConfigurationRoot configuration)
{
_configuration = configuration;
}
//public ApplicationDbContext(DbContextOptions<ApplicationDbContext> options) : base(options)
//{
//}
public DbSet<Person> Persons { get; set; }
protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
{
optionsBuilder.UseSqlServer(_configuration["ConnectionStrings:ApplicationDbContextConnection"]);
}
}
} public void ConfigureServices(IServiceCollection services)
{
services.AddDbContext<ApplicationDbContext>(); using System.Linq;
using Core1RtmEmptyTest.Entities;
using Microsoft.AspNetCore.Mvc;
namespace Core1RtmEmptyTest.Controllers
{
public class TestDBController : Controller
{
private readonly ApplicationDbContext _ctx;
public TestDBController(ApplicationDbContext ctx)
{
_ctx = ctx;
}
public IActionResult Index()
{
var name = _ctx.Persons.First().FirstName;
return Json(new { firstName = name });
}
}
} 
rssheap is a free open source web and mobile based reader built entirely on the .NET platform. Our mission is to help developers discover great content online and filter all the junk on the internet.
Microsoft Build 2020: Uno Platform + WinUI = Future of Cross Platform Apps
These include automating tasks, open-sourcing our code, adding package manager support, using a build server to automatically build (and test) our software, supporting TypeScript and adding our library to a CDN.
bower install ng-file-upload-shim --save bower install ng-file-upload --save
<input type="file" ngf-select ng-model="picFile" name="file" accept="image/*" ngf-max-size="2MB" required>
<div ngf-drop ng-model="picFile" ngf-pattern="image/*">
...
</div> <i ng-show="myForm.file.$error.required">*required</i><br> <i ng-show="myForm.file.$error.maxSize"> File too large: max is 2M </i>
app.controller('MyCtrl', ['$scope', 'Upload', '$timeout', function ($scope, Upload, $timeout) {
// the method uploadPic called from Angular View
$scope.uploadPic = function(file) {
file.upload = Upload.upload({
url: 'https://angular-file-upload-cors-srv.appspot.com/upload',
data: {file: file, otherData: $scope.otherData},
});
file.upload.then(function (response) {
// waiting for response
$timeout(function () {
file.result = response.data;
});
}, function (response) {
//error
if (response.status > 0)
$scope.errorMsg = response.status + ': ' + response.data;
}, function (evt) {
//progress
file.progress = Math.min(100, parseInt(100.0 * evt.loaded / evt.total));
console.log(file.progress);
});
}
}]); Have you ever found a bug in your code and wanted to pause code execution to inspect the problem? If you are a developer, there’s a strong chance you have experienced or will experience this issue many, many times. While the short and sweet answer to this problem is to use a breakpoint, the longer answer is that Visual Studio actually provides multiple kinds of breakpoints and methods that let you pause your code depending on the context! Based on the different scenarios you may experience while debugging, here are some of the various ways to pause your code and set or manage a breakpoint in Visual Studio 2017
Scratch.js is a standalone library with no external dependencies which brings interactivity to your website by allowing you to generate scratch cards for your visitors.
Based on HTML5, scratch.js generate canvas on the fly and is optimized for all modern browsers and has touch support for mobile devices. You can use it to make scratch cards, coupons, promotionnal game and even advertisement.
NativeScript is a new framework for building native apps that allows developers to share code across iOS, Android, and Windows.
What they neglect to say is all that testability and persistence ignorance flies right out the window when you create a new ASP.NET Web Application using the MVC template and "Individual User Accounts" authentication. What you get is a single-layered application, tightly coupled to Entity Framework, that:
Ignores the patterns that facilitate testing, including: the repository pattern, unit of work pattern, and dependency injection;
Forces you to implement their IUser interface in your application’s User entity, thereby coupling it to ASP.NET Identity;
Eliminates any clear separation between your entities, persistence concerns, and business logic. Persistence ignorance? Forget about it.
Thankfully, due to the extensibility designed into ASP.NET Identity, it is possible to ditch the reference to the Microsoft.AspNet.Identity.EntityFramework assembly and write a custom implementation that can address these and other architectural issues. Just be forewarned: it is not a trivial undertaking, and you’ll have to put up with some code smell that is baked into the Microsoft.AspNet.Identity.Core assembly.
