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Entity Framework Core (EF) with SQL Server LocalDB

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This blog is going to illustrate how to implement Entity Framework (EF) Core with SQL Server LocalDB. The Entity Framework Core enables access to data from the database. This allows developers to avoid having to write most of the data access code. And the SQL Server LocalDB works similarly to the SQL SERVER with few features. You can get the LocalDB when you install visual studio or visual studio express. You can find the .mdf and _log.ldf files in the C:/Users/{user} directory. Let see how to create a SQL Server LocalDB and implement Entity Framework Core Step 1: The first step is to add a connection. In the menu -> click Tools and select Connect to Database It will display the Add Connection window. Enter (localdb)\mssqllocaldb in the server name textbox. Then in the Select or enter a database, select master and click ok Now in the server explorer, you can find the master DB containing Tables, Views, Stored...
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Progressive Web App (PWA) Manifest File in Blazor

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This article is going to explain what a manifest file is and how to use it in the PWA Blazor application. You can easily configure the manifest in your Blazor app. Let's see how to do it. What is a Manifest File? Manifest is a single JSON file that tells the browser what kind of application it is, What is the name of the application? Where is the application icon? What background color and etc. The manifest file name must be manifest.json While creating the Blazor application , it will automatically create the manifest.json file under wwwroot folder. The following is a default manifest.json code. { "name" : "SamplePWABlazorApp" , "short_name" : "SamplePWABlazorApp" , "start_url" : "./" , "display" : "standalone" , "background_color" : "#ffffff" , "theme_color" : "#03173d" , "icons" : [ { "src" : "icon-5...
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Component Disposal in Blazor

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Developers need to manage the resources used in the application. They need to release unmanaged resources that will help prevent memory leaks. The Blazor provides two implementations for releasing the component. IDisposable and IAsyncDisposable IDisposable The following is a small example of the code to illustrate the disposal of components in Blazor. The first step is to implement the IDisposable interface using the @implements directive. The Dispose() method is then used to release the memory. @page "/sample" @implements IDisposable @code { Movie movieObj; private void CollectValues() { movieObj = new Movie(); ... ... ... } public void Dispose() { movieObj?.Dispose(); } } If only one object requires disposal, you can use the lambda expression. public void Dispose() => movieObj?.Dispose(); IAsyncDisposable You can use IAsyncDisposable.DisposeAsync for asynchronous disposal. The follo...
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