Background In one of my previous posts, I created a very basic VSTO example that adds a button to the PowerPoint ribbon. Recently, I had a task I needed to enumerate all the pictures in the Power Point presentation and extract them into a zip file. Power Point presentation might contain many different shapes, such as …

Background In one of my previous posts, I demonstrated how to create a simple VSTO Addin for Excel that adds a button on the ribbon. In this post, I am going to show how to add a user defined functions using Excel-DNA as well as use the ribbon functionality. My Stack Visual Studio 2019 Community. .NET Framework 4.7.2 …

Background Starting Windows 7, Microsoft added a capability for displaying recently used files. This usually includes documents, pictures, and movies we've recently accessed. These files can be seen in various Windows components, including: Recent files Recent items Start menu or application's Jump List The …

Background Usually when creating forms with different controls, we would like the form be opened with a specific control in focus. This is usually true for Textboxes, but could be also very relevant for other controls such as ComboBox, Radio control, Listbox, and more. There are several ways to achieve this …

Background .NET core provides a generics class List to store a strongly types objects that can be accessed by index. This class provides us with many methods to add, remove, access, sort or manipulate the objects within the list. In this sample, I am going to demonstrate the following Reverse options: Reverse using …

Introduction I've been seeing a lot of repeated questions of difficulties deserializing XML files that have a namespace. In this post, I will provide some samples in C# of how to deserialize such XML files with minimal amount of code. My goal for this article is to provide working examples with minimal amount of code …

Today, I am going to demonstrate a simple way to check if the current executing user has a writing permission for a directory in the Windows file system. I came across this issue in a project when I needed to write a utility program that would do the following: Output a list of all directories that the current user is …

Background Microsoft Office provides a variety of component types you could develop to extend its existing functionality or to add more useful features. These components include VBA macros, VSTO components, XLL Addons, and more. In this sample, I will focus on creating a C# VSTO project that displays a simple ribbon. …