![]() ![]() I will write another blog post about DependencyService in Xamarin.Forms. In this example I am using the DependencyService, you will see the whole code in github repo. To get these values best approach is to use DependencyService which is built in Xamarin.Forms.Ĭode lines for getting sqlite database path for platforms: In this particular case we need to get sqlite database path for every platform that is used in our solution. If the database exists, then no effort is made to ensure it is compatible with the model for this context.Īlso inside of DatabaseContext class we have method OnConfiguring where you can set some options for database. If it does not exist then the database and all its schema are created. It ensures that the database for the context exists. We are calling the method called EnsureCreated (without it you will get an exception). Here you can see a code snippet for our DatabaseContext and some additional code lines that will be described in the next few paragraphs: ![]() So we need one class which will inherent from DbContext class and it will hold our two table classes with in this case two DbSet properties. ![]() If you are familiar with EntityFramework you will know that we need some class which will represent the context of our database. That are the classes which we will use in our database. For this tutorial I will use two classes/tables with one-to-many relationship with Team and Player. I will use MVVM for this tutorial and that is my advice to you also, the main focus of this tutorial will be Entity Framework, so if anything is blurry for you about MVVM, you can checkout some of my previous tutorials and blog posts about MVVM.įirst thing we need to do is to make our models, our entity models which will represent the tables in our database. Now you are ready to follow the tutorial. When you finish installing the nuget you want to add this line in iOS project in AppDelagate.cs: NET Standard class library and Android and iOS project add this nuget: The biggest one is Life Cycle Hooks, which combined with the EntityEntry APIs we added in 1.1, will allow a rudimentary roll-your-own lazy loading pattern."Ĭommunity: "Entity Framework Core 2.0 is available in Xamarin.Forms to all platforms (UWP is coming very very soon)"įirst we need to add nuget packages to use EF in our app, in your. Lazy Loading isn't going to be in 2.0 but we are adding some features that are groundwork for implementing it. Note #2: At this moment EF Core is not supporting lazy load.Īnd here is a couple of word from Rowan Miller: "Just to add one data point to the discussion. NET Standard 2.0 "friendly" I will update this blog post. ![]() NET Standard 2.0 at it will be supported by the end of the year.īut when UWP become. Note: At this moment EF Core 2.0 is working on all platforms but UWP is not supporting. and add our three standard folders: Models, Views, ViewModels and additional ones are Helpers and DataAccess. NET Standard please comment down bellow and I will try to make special blog post about that.Ĭreate new Xamarin.Forms app as always I will use PCL and I will migrate to the. If you have any question about migrating to. You can also check out these great blog posts from Adam Pedley: NET Standard Library 2.0 and here is a good article about it: We will have couple of tables (two), our context class and CRUD operations in Xamarin.Forms.įirst of all our shared project need to be. When I learn something I like to see it from zero to some CRUD operations in the app, so this blog post will be like that. With version Core 2.0 all platforms Android, iOS and UWP (uwp soon) are supported so I decided to write this blog post. First time I seen EF was in ASPNET MVC and I fall in love with it, now when I am also very active in Xamarin Development, Entity Framework is something that I miss from my ASP.NET dev "world". I am very exiced to write this blog post. ![]()
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