Today Doug Mahugh, Senior Technical Evangelist for Microsoft Open Technologies Inc., announced the release of an Open XML SDK as an open source project through the MS Open Tech hub. Although the SDK has been available since 2007, this release includes full source code available under the Apache 2.0 license on GitHub, as well as the project will continue to grow under the stewardship of the .NET Foundation
EF Code First #7
- همچنین مطابق این ماخذ: اگر کلید خارجی مدنظر نال پذیر باشد (مانند نوعهای nullable صریح و یا string و امثال آن)، حذف آبشاری را اعمال نمیکند. فقط یک سر رابطه را نال کرده و آنرا حذف میکند.
If a foreign key on the dependent entity is not nullable , then Code First sets cascade delete on the relationship
, What Every JavaScript Developer Should Know About ECMAScript 2015 is the book I'd like to read about the new features in the JavaScript language. The book isn't a reference manual or an exhaustive list of everything in the ES2015 specification. Instead, I purposefully selected what I think are the important features we will use in everyday programming.
مشخصات یک ایمیل خوب
public class ProjectsContext : DbContext { //the static constructor runs a single time with the first instance of a class static ProjectsContext() { Database.SetInitializer(new CreateDatabaseIfNotExists<ProjectsContext>); } }
کتابخانه angular-checkboxes
If you are used to manipulate HTML forms, you probably know that each checkbox is a separate variable (or maybe an ngModel with AngularJS). Demo
Sometimes, it could be usefull to manipulate all these checkboxes as a unique array.
angular.checkboxes
module lets you turn your list of checkboxes into a unique destination array, providing :
- two-way binding: manipulate the destination array will check/uncheck the checkboxes AND check/uncheck the checkboxes will modify the destination array.
- no isolated scope for each checkbox: the directive does not create new child scope.
- a mtCheckboxController: internal controller can be injected to other directives.
Protocol Buffers are a language-neutral, platform-neutral, extensible way of serializing structured data for use in communications protocols, data storage, and more, originally designed at Google (see).
protobuf.js is a pure JavaScript implementation with TypeScript support for node.js and the browser. It's easy to use, blazingly fast and works out of the box with .proto files!
JSON Web Token is a security token which acts as a container for claims about the user, it can be transmitted easily between the Authorization server (Token Issuer), and the Resource server (Audience), the claims in JWT are encoded using JSON which make it easier to use especially in applications built using JavaScript.