AngularJS form validation enables you to develop a modern HTML5 form that is interactive and responsive. AngularJS provides you built-in validation directives to to validate form client side. This makes your life pretty easy to handle client-side form validations without adding a lot of extra effort. AngularJS form validation are based on the HTML5 form validators.
Angular's HTML compiler allows you to teach the browser new HTML syntax. The compiler allows you to attach new behaviors or attributes to any HTML element. Angular calls these behaviors as directives.
Today's mobile apps are playing a vital role, and have changed the way of browsing the web. Now the question is, how to develop your mobile apps? Mainly there are three options to develop your mobile apps : Native Apps, Html5 Apps and Hybrid Apps. Let's have a look in these three development models.
LINQ standard query operators are the methods which help you to write LINQ query. Most of these query methods operate on sequences or collection whose implement the IEnumerable<T> interface or the IQueryable<T> interface. These operators provide query capabilities including filtering, projection, aggregation, sorting and much more.
As you know LINQ provides a common query syntax to query any data source and ADO.NET allows you to execute query against any RDBMS like SQL Server, Oracle etc. In this article, I am sharing my view on LINQ and ADO.NET.
LINQ has a JOIN query operator that provides SQL JOIN like behavior and syntax. As you know, Inner join returns only those records or rows that match or exists in both the tables. The simple inner join example is given below:
LINQ provides element operators which return a single element or a specific element from a collection. The elements operators are Single, SingleOrDefault, First, FirstOrDefault, Last, LastOrDefault.
LINQ provides a uniform programming model (i.e. common query syntax) to query data sources (like SQL databases, XML documents, ADO.NET Datasets, Various Web services and any other objects such as Collections, Generics etc.). LINQ provides you three different ways to write a LINQ query in C# or VB.
LINQ provides a common query syntax to query any data source. In a LINQ query, you always work with objects. The object may in-process object or out-process object. Based on objects, LINQ query expression is translated and executed.
Select and SelectMany are projection operators. Select operator is used to select value from a collection and SelectMany operator is used to select values from a collection of collection i.e. nested collection.
In .NET, Expression is an abstract class which contains static methods and inherited by various types (like ParameterExpression, MethodCallExpression) to create expression tree nodes of specific types. A ParameterExpression represents a named parameter expression and a MethodCallExpression represents a method call.
Microsoft Visual Studio Express products are powerful and reliable free development IDE that provide a free development environment to develop applications for the latest platforms. The Express edition is free and ideal for learning, developing, powering desktop, web & small server applications.
LINQ provided you common query syntax to query various data sources like SQL Server, Oracle, DB2, WebServices, XML and Collection etc. LINQ also has full type checking at compile-time and IntelliSense support in Visual Studio, since it used the .NET framework languages like C# and VB.NET.