dotnetcore
LINQ to SQL - Select N Random Records
Language-Integrated Query (LINQ) is a set of technologies based on the integration of query capabilities directly into the C# or VB language in .NET. It allows intuitive query against SQL databases, XML, object list, etc. This article shows how to return a top N records randomly. The ...
With cloud platforms like Azure, we can totally separate user content storage from web application storage to decouple components from each other and to make the application easy to scale and deploy. This article provides detailed information with code snippets about how to use Azure server-less product Blob Storage and App Service to enable horizontally scalable web application for users to upload files (BLOBs).
In this article, I'm going to show you how to install Jupyter in Windows and then install .NET kernel for Jupyter notebooks. It also shows a machine learning example using ML.NET. The target audience are .NET developers who want to expand their skills in data engineering and science domain with ...
I’ve been following Mobius project for a while and have been waiting for this day. .NET for Apache Spark v0.1.0 was just published on 2019-04-25 on GitHub. It provides high performance APIs for programming Apache Spark applications with C# and F#. It is .NET Standard complaint and can run in ...
I’ve just started an asp.net core 2.2 based implementation for Australia Consumer Data Standards (published by Data 61). Opening Banking initiative will follow these standards. The purpose is to help you to get familiar with these standards, especially the APIs that need to be implemented. The ...
.NET Framework, you can use |DataDirectory| to configure connection string when connecting to SQL Server database file via attach mode: AttachDbFilename=|DataDirectory|\dbname.mdf In .NET Core, you cannot directly set SQL Server Express connection string by using any tokens directly. There is ...
.NET Core is built in with dependency injection. Usually method ConfigureServices in Startup class is used to register services in the container. The signature of the method looks like the following: public void ConfigureServices(IServiceCollection services) { } Sometimes it may be ...
After upgrading to ASP.NET Core 2.1 (.NET Core SDK 2.1.301), you may encounter the following error about encoding: System.ArgumentException HResult=0x80070057 Message='Cyrillic' is not a supported encoding name. For information on defining a custom encoding, see the ...
SQLite is a self-contained and embedded SQL database engine. In .NET Core, Entity Framework Core provides APIs to work with SQLite. This page provides sample code to create a SQLite database using package Microsoft.EntityFrameworkCore.Sqlite . Create a .NET Core 2.x console application in ...
In .NET Core 2.x, Windows Forms or WPF are not implemented since they are based on GDI+ and DirectX respectively in Windows. In .NET Core 3.0, there is plan to add Desktop Packs which includes UWP. WPF and Windows Forms. However, they will still be Windows-only. In .NET Core applications, you may ...
