![]() ![]() ![]() But there is another huge issue that is perhaps currently a blocker for using in-browser apps in an educational setting: if you edit content in the app – for example, a SQL query you spent ages crafting – you lose it when you close the web page: there is nowhere you can save it to and then reload it, nowhere you can persist it, unless you export it / downlad it to the desktop, and then import it / upload it from the desktop next time you run the application. Fortunately, applications such as v make it possible to run a webserver in your web browser to serve content held locally by uploading it to the browser and serving it from there:įor running simple applications, installing something like v as an app so you can run it offline is really handy when it comes to not requiring a user to run their own webserver. there is no requirement on the provider to provide a code execution server: a static web server is all that is required to provide the environment to the user.Ī Brief Aside – Serving Webpages Locally Without a Webserverįor purely local running, there may be requirement for the the user to run a local webserver to serve the environment: if you double click an HTML file on your desktop and open it in a broweser with a URL starting file://, the browser may well throw CORS (cross-origin) security errors as it tries to load the page.there is no requirement on the user to install any software on their desktop: all they need is a web browser, a network connection to download the environment, and a powerful enough computer to run the application in the browser.If you want to try it out, there’s a simple demo page here:Īpplications moving off-the-server and into the browser is really handy in many educational contexts because it means: Databases can be loaded from an uploaded file, or retrieved from a remote URL. The sql.js package provides a WASM compiled version of SQLite that runs purely in the browser. See also: Seven Ways of Making Use of SQLite. Several ways of working with SQLite in the browser exist the following does not claim to be a complete list, just a representative sample, and includes: In this post, I’ll review a couple of WASM compiled databses that you can run purely within a browser: SQLite and Duck.db. It worked as a general SQL database client, or could be used to manage and query a SQLite database powered by sql.js. Visual Studio 2022 with the ASP.NET and web development workload.Several years ago, in a post on Asking Questions of CSV Data, Using SQL In the Browser, I described a rather nifty application called franchise, (from the repo, it seems to have been deprecated for some time, or at least, is no longer actively maintained there). The Visual Studio instructions use SQL Server LocalDB, a version of SQL Server Express that runs only on Windows. C# for Visual Studio Code (latest version).The Visual Studio Code instructions use the. NET CLI for ASP.NET Core development functions such as project creation. You can follow these instructions on macOS, Linux, or Windows and with any code editor. Minor changes may be required if you use something other than Visual Studio Code.Ĭonsider downloading and installing a third-party tool for managing and viewing a SQLite database, such as DB Browser for SQLite. The Visual Studio Code tab use SQLite, a cross-platform database engine. A good way to get help is by posting a question to, using the ASP.NET Core tag or the EF Core tag. The app built in these tutorials is a basic university web site. ![]() Users can view and update student, course, and instructor information. Here are a few of the screens created in the tutorial. The UI style of this site is based on the built-in project templates. The tutorial's focus is on how to use EF Core with ASP.NET Core, not how to customize the UI. Building the completed app is recommended when you have problems you can't solve. ![]() If you run into a problem you can't resolve, compare your code to the completed project. Start Visual Studio 2022 and select Create a new project. In the Create a new project dialog, select ASP.NET Core Web App, and then select Next. In the Configure your new project dialog, enter ContosoUniversity for Project name. It's important to name the project ContosoUniversity, including matching the capitalization, so the namespaces will match when you copy and paste example code. In the Additional information dialog, select. NET 6.0 (Long-term support) and then select Create. ![]()
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