During this session, we are going to talk about the relationship between entities in Entity Framework Core, and demonstrate different types of relationships. Generally, there are three types of relationships which are one-to-one/zero, one-to-many, and many-to-many that we discuss all of them in this session.
During this session of ASP.NET Core Tutorial, we discuss connecting SQL Server with EF Core and MySQL with EF Core, also we will talk about EF Core Migration. In Session 45 we make our Web App ready to work with Entity Framework Core. Moreover, we installed the EF Core required NuGet Packages, and created the DBContext class. In this session, we add DbSet to the DBContext and connect EF Core with SQL Server and MySQL database engine.
In this session of the ASP.NET Core tutorial, we introduce Entity Framework Core (EF Core) and make our Web App ready to work with EF Core by installing required NuGet Packages. EF Core is a version of Microsoft Entity Framework that is lightweight, Open Source, Cross-functional and extensible. This data access framework is an Object Relational Mapper (ORM) that helps developers to work with DB through .NET objects.
In this session of ASP.NET Core tutorial we are going to create a form with Tag Helpers, then we are going to validate the create form with Tag Helpers. During previous session we discussed about creating form with Html Helpers, also we introduced several type of Data Annotation for model validation. Moreover, in Session 38 we already discussed about form validation with detail. During this session, we will show you how to create form and validate it with Tag Helpers.
During this session, we introduce Environment Tag Helper and will show you how we can load libraries from their CDN with fallback capacity in ASP.NET. IN Session 6, we discussed about environment in ASP.NET in detail and introduced different environments. In this session we call the minified and none minified libraries dynamically in different environments with the mentioned Tag Helper.
In this session of ASP.NET Core / 5.0 tutorial we introduce Image Tag Helper and talk about its benefits, also we show you how you can create a Responsive Menu for your web application. In session 37, we use img Html tag in the Detail View, also we created a custom Html Helper that render img tag. In this session we review Tag Helper for img Html tag and show you the way that you can use it.
In this session of ASP.NET 5.0 / Core we introduce Tag Helpers, also we show you the way that you can use Tag Helpers in Anchor element . Tag Helper are server side component that process in server side and render Html tags. Their functionality are same as Html Helpers. Moreover the most part, Razor markup using Tag Helpers looks like standard HTML and this feature make the job easier for developers. There is several built-in Tag Helper in ASP.NET that we can use in developing our Views and we introduce some of them in this session and upcoming sessions. Furthermore, for using Tag Helpers in Views we should add it there that we discussed about it earlier in Session 23.
In this session of ASP.NET 5.0 / Core tutorial we will talk about RegularExpression Attribute and Compare Attribute as well. If you are not familiar with Regular Expression in C#, you can find more about it in Document part of Microsoft website which is accessible form here. Also, you can find common and useful regular expression patterns in Regular Expression Library website and use them in your code. Moreover, you can test your selected regular expression to check whether your requirement is meet or not through Rubular web tool.
Validation in detail. In the continuation of Session 38 we are going to introduce one more validation attribute which is Range attribute. Also, we will show you the way that you can customize the attributes and the way that you can create a custom validation attribute.
In this session of ASP.NET Core tutorial we will discuss about Form Validation in ASP.NET Core and will review Required Attribute and StringLength Attribute as well. Also we will talk about one more HTML Helper which handle Validation Error Message and it is ValidationMessageFor. For validating a form we need to modify the controller, Model or ViewModel. Also, we need to modify the View based on the helper that we used there.
In this session of ASP.NET Core we will discuss about Custom HTML Helper and we create a Custom HTML Helper and use the created helper inside our Views. Also, we continue our discussion in Session 36 about changing properties format in Edit View. But in this session we use DisplayFormat instead of EditorTemplates for achieving this purpose.
In this session of ASP.NET Core Tutorial we talk about DisplayTemplates and EditorTemplates and customize the Views that we created in session 34 and 35 with DisplayForModel and EditorForModel. As their names imply, DisplayTemplates is for customizing Views that are created by DisplayForModel. Moreover, EditorTemplates is able to customize Views which are implemented by EditorForModel.