a developer's notebook
A custom validation attribute allows you to create metadata, that you can use in the data model to validate data fields. In order to validate when a collection is null or empty, you may create a custom validation attribute, which returns false in case the object is null or empty. public class NotNullOrEmptyCollectionAttribute : ValidationAttribute { public override bool IsValid(object value) { var collection = value as ICollection;…
Windows PowerShell is a task automation and configuration management framework from Microsoft, consisting of a command-line shell and associated scripting language, built on the .NET Framework. You can search for it, using Windows Search, but probably you already have it installed on your computer. On top of the standard command-line shell, you can also find the Windows PowerShell ISE, which…
Azure Blob Storage is part of the Microsoft Azure Storage service, providing a relatively low cost service for storing large amounts of unstructured data, such as text or blobs; “blobs” stands for Binary Large Objects. A blob is a collection of binary data stored as a single entity. It typically comprises images, audio, or any other file. In this tutorial,…
When you create an Azure website, you are automatically provided with a production slot that represents your live website. In addition, with each deployment slot, you are eligible to create up to four additional deployment slots that you may swap with the production slot or with the other non-production slots. Having this option, you can create more robust deployment workflows than just deploying your…
In order to sort a collection of objects based on another list that contains the proper order, we can create an extension method that performs a Join between these two collections and pass a func as innerKeySelector argument to allow us to sort this collection based on whatever key we want. Example // Object that we are going to use class…
In a cloud environment, sooner or later, you may come across scenarios where some services might become temporarily unavailable, since you are depending, to a large extent, on network connections and external services. Usually, these are little glitches that may even be self-healing, however, in order not to ruin the user experience, you have to be prepared to handle them skillfully. Usually, in…
