Posts Tagged ‘C#’
New version of Add-in Express sample COM add-in projects
Andrei Smolin | July 1st, 2020
Quick news: we've developed a new version of sample COM add-in projects that we provide in the downloadable archive on the Add-in Express .NET Downloads page... Read the rest of this entry →
Support for Office 2019 is added to Add-in Express for Office and .net
Dmitry Kostochko | November 23rd, 2018
Version 9.2 of Add-in Express for Office and .net is published, and we now announce full support for all versions of Office 2000 through 2019 32-bit and 64-bit... Read the rest of this entry →
How to customize MSI installer using Add-in Express ClickTwice custom actions
Andrei Smolin | February 2nd, 2017
Let's start with the conclusion: you can deeply customize the UI and behavior of the MSI installer of your Add-in Express based Office extension using a ClickTwice custom action. To see how this works, build the project below, install the add-in by starting the MSI installer, and have a closer look at that installer's UI... Read the rest of this entry →
Localization of Office add-ins using forms-based resources
Dmitry Kostochko | December 20th, 2016
The article describes how to create a localized version of an Office add-in by using regular forms-based resources without having to apply them manually to each component, form or control... Read the rest of this entry →
Office context menu add-in for Excel, Outlook, Word, PowerPoint
Andrei Smolin | April 15th, 2015
The blog is about an add-in (with the source code) that adds a button to all context menus of Excel, Outlook, PowerPoint, Project, Publisher, Visio and Word in Office 2010-2013. The button shows the name of the context menu.... Read the rest of this entry →
How to determine when a user has read an Outlook message
Pieter van der Westhuizen | March 5th, 2015
In this article, we'll look at how to determine when a user has read an Outlook mail message. We will create an Outlook add-in that illustrates the various methods of responding to the the fact that a user has read an e-mail in Outlook... Read the rest of this entry →
Working with Outlook HTMLBody – a guide for Office developers
Pieter van der Westhuizen | February 23rd, 2015
If you've ever tried to design an attractive and somewhat complex e-mail message using Microsoft Outlook and HTML, chances are you very quickly realized that the Outlook mail message body format performs rather differently than a normal web browser... Read the rest of this entry →
How to get unread mail in Outlook: C# code examples
Pieter van der Westhuizen | January 29th, 2015
Finding and filtering items in Outlook can be done in a variety of ways and in this article we'll focus on ways to retrieve unread mail from Outlook... Read the rest of this entry →
Working with Outlook attachments programmatically: C# code examples
Pieter van der Westhuizen | January 23rd, 2015
Many Outlook developers have been faced with programmatically accessing and working with Outlook Item attachments. All Outlook items have the Attachments property, which means attachments can be added to MailItem, ContactItem and AppointmentItem items, to name a few. In this article we'll explore some facets of handling and interacting with attachments in Outlook... Read the rest of this entry →
Sending and updating Outlook Calendar’s appointments and meeting requests
Pieter van der Westhuizen | January 16th, 2015
2015 is here, and from all of us at Add-in Express we wish you a very prosperous year. We'll kick off this year by taking a closer look at Microsoft Outlook appointments and meetings... Read the rest of this entry →
Connecting Outlook appointments with Freshbooks web-service data, part 4
Pieter van der Westhuizen | November 14th, 2014
In this, our fourth and final part on how to write an Outlook add-in for Freshbooks web-service, we'll explore how to develop a custom form region to connect an Outlook appointment with the web-service's Timesheet entry... Read the rest of this entry →
Creating Outlook ribbon UI from scratch – Integrating with Freshbooks web-service, part 3
Pieter van der Westhuizen | November 6th, 2014
In this article, we'll continue with the add-in and tackle the process of hiding the standard Outlook Inspector and Explorer Ribbon tabs for the Freshbooks folders and items and replacing them with our own Freshbooks Ribbon Tabs... Read the rest of this entry →
Calling Freshbooks web-service from Outlook, part 2
Pieter van der Westhuizen | October 21st, 2014
In the previous article, we started with the basic concept and layout of our Freshbooks Outlook Add-in. So far, we've connected Outlook to the web-service by creating the Freshbooks specific folders, message classes and solution module, and in this article we'll continue building our Outlook plug-in... Read the rest of this entry →
How to integrate Outlook add-in with Freshbooks web-service, part 1
Pieter van der Westhuizen | October 6th, 2014
In this article, the first of a series, we'll start building a Microsoft Outlook Add-in that will serve as a client for Freshbooks. Users would be able to view their Freshbooks data as well as perform numerous Freshbooks tasks all from within Outlook... Read the rest of this entry →
Creating an Excel Stock Information RTD server using the Yahoo Finance API
Pieter van der Westhuizen | September 25th, 2014
In today's article, we'll write an Excel RTD server that returns the latest stock prices and other information. In case you're not familiar with Excel RTD servers, it is used to communicate with a real-time data source, such as stock quotes and provide the user with a constant flow of changing data... Read the rest of this entry →
Exception from HRESULT 0x800A01A8 in PowerPoint solutions
Andrei Smolin | June 24th, 2014
On an example of a simple scenario, this article demonstrates what causes 0x800A01A8 and how to avoid it in C#, VB.NET, VBA, Delphi. Exception from HRESULT: 0x800A01A8 is also known as OLE error 800A01A8 and also known as Object Required.... Read the rest of this entry →