‘Add-in Express for Office and .net’ category archive

Working with custom Outlook properties: C# code examples

Microsoft Outlook provides a rich interface for developers to add their own custom properties to Outlook Folders and Items. The Outlook Object model provides two objects when working with custom properties... Read the rest of this entry →

Working with Outlook special folders (Inbox, Outbox, Drafts, Sent Items, Deleted Items)

Happy 2014 everyone! We'll start this year with an article looking at Outlook special folders. Microsoft Outlook has a number of special folders of which the most common folders are: Inbox, Drafts, Sent Items, Outbox and Deleted Items. Now let's have a closer look at each of the Outlook special folders and see how to work with them in the most efficient manner.... Read the rest of this entry →

How to create and modify Outlook-specific files

Microsoft Outlook produces and uses a variety of file types. The most common and well known fields are either .pst or .ost files. These two file types are known as Outlook Data Files, the .pst file is known as the Personal Outlook Data file and stores you messages and other Outlook items... Read the rest of this entry →

Create a status report generator using Excel and Outlook: C# sample

Today, I'll show you how to create a status report using Excel and Outlook. This add-in sample will run within Excel. The user will have a button to click that starts the report process. Instead of creating a new workbook or worksheet, the add-in will insert the task status report into the existing spreadsheet... Read the rest of this entry →

How to import contacts and appointments from Excel into Outlook and vice-versa

Importing contacts and appointments into Microsoft Outlook is a feature that has existed in Outlook for a while. In Outlook 2013 you can find the Import/Export function in the File or Backstage view menu, under Open & Export... Read the rest of this entry →

How to find the last used cell (row or column) in Excel

VB.NET code samples explain some reliable methods for finding the last used cell in an Excel worksheet or a range.... Read the rest of this entry →

Loading a .NET 2.0 Office add-in on a machine with .NET 4.0

The fact is: almost all Office add-ins will load correctly in this situation. Yes, you don't need to modify anything in the add-in unless your add-in is affected by the issues described in .NET Framework 4 Migration Issues... Read the rest of this entry →

Populating Excel workbooks and ranges with arrays

Microsoft Excel, with its almost endless supply of rows and columns, is data DisneyLand. It's fun to work with data and make it easy to consume. Part of the fun, at least for developers, is populating Excel with data. Today, I want to take another look at how to use arrays to populate Excel with data... Read the rest of this entry →

How to use Excel VBA macros and COM add-ins in one solution

The Microsoft Excel Office Object model is a varied and very mature framework and allows you to not only create VBA macros and functions but also COM add-ins. Of course creating these add-ins is made even simpler with the help of Add-in Express... Read the rest of this entry →

Please, don’t let us make your favorite IDE unsupported!

Currently we are working on new major releases and minor updates of our frameworks and tools. Just yesterday, an intense debate sparked among our team over whether we should continue to support some aged IDEs, e.g. Visual Studio 2005 and Delphi 5... Read the rest of this entry →

Convert an Excel column number to a column name or letter: C# and VB.NET examples

There are a lot of examples floating around on the internet on how to convert Excel column numbers to alphabetical characters. There are a few ways to get the column letter, using either vanilla C# or VB.NET, Excel formulas or the Excel object model. Let's take a look at some of the solutions... Read the rest of this entry →

How to properly release Excel COM objects

You'll see a lot of complaints on the internet about Excel and other Microsoft Office applications not quitting properly after using the object model to perform certain actions, or showing sporadic and unpredictable behavior in COM add-ins. In the end most of these issues boil down to developers not properly disposing of COM objects... Read the rest of this entry →

Working with Excel pivot tables: VB.NET code examples

Today, I'll show-off some code that shows how to automate pivot tables. It's quite likely your user base is 100% comprised of uber-serious spreadsheet jockeys. These people need your help. This code will help you relate to them and make their life easier... Read the rest of this entry →

Importing data from SQL databases and other sources to Microsoft Excel

A number of people I've met had no idea about one of Microsoft Excel's most powerful features. I'm talking about the ability to add data from external sources to your Excel sheet and manipulate it from there. Of course as a developer this can come in very handy when you want to provide your users with an intuitive and flexible way to access your data and empower them to create their own reports... Read the rest of this entry →

Working with Excel tables & ranges: VB.NET code samples

Microsoft Excel, being a spreadsheet application, automatically brings structure to your thinking. You can build models to help you think through just about anything. You can organize your data and create lists of any imaginable type. In fact, most apps in the mobile app stores these days can easily be replaced by Excel files. Even games... Read the rest of this entry →

Working with Excel charts: how to change a chart style, color or type programmatically

Adding charts in your Excel add-ins using the Excel object model is easier than you might think. In this article we'll take a look at how to insert charts programmatically, format their style and colors as well as how to change the chart's display by filtering its data... Read the rest of this entry →

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