Posts Tagged ‘VB.NET’
How to create a custom event when Excel calculation mode changes
Andrei Smolin | December 5th, 2011
You should be aware that no such event exists. Let's create it. In Excel 2007 - 2010, you can change the calculation mode using the buttons shown in the screenshot below... Read the rest of this entry →
HowTo: Handle events of an Outlook item
Andrei Smolin | November 28th, 2011
There are two variants of handling events of an Outlook item. You can connect to events of an item shown in the active inspector window. In addition, you can connect to events of an item selected in the explorer window... Read the rest of this entry →
Outlook and Word Toolbars mixed: problem and solution
Andrei Smolin | November 17th, 2011
Have you ever run into the issue when an Outlook toolbar created by your add-in shows up in Word? Or maybe, a Word toolbar gets displayed in Outlook? This article describes the issue and provides a workaround; the source code is supplied in VB.NET, C# and Delphi... Read the rest of this entry →
How To: Use Restrict method in Outlook to get calendar items
Eugene Astafiev | November 15th, 2011
I described how to use the Find and FindNext methods against calendar items in my previous post. Today I would like to take closer look at how to deal with calendar items using the Restrict method... Read the rest of this entry →
How To: Retrieve Outlook calendar items using Find and FindNext methods
Eugene Astafiev | November 11th, 2011
In my previous articles I described how to use the Find and FindNext methods of the Items class against mail and contact items. Today we will have a closer look at calendar items... Read the rest of this entry →
How To: Create a new recurring Outlook Appointment item
Eugene Astafiev | November 7th, 2011
In my previous article I described how to create a new Outlook Appointment item. Now I want to show you the way to create a new recurring appointment item in Outlook. Unfortunately the Outlook Object Model doesn't provide any intuitive property or method for such a task... Read the rest of this entry →
How To: Create a new Outlook Appointment item
Eugene Astafiev | November 4th, 2011
There are three ways of creating a new appointment item in Outlook. Today we will examine each of them in depth... Read the rest of this entry →
How To: Get a list of Outlook contacts
Eugene Astafiev | October 27th, 2011
A while ago I described two ways of getting Outlook Contact items from a folder: by using the Find/FindNext and Restrict methods of the Items class. Today I am going to show you the way of getting a list of all contacts of a certain Outlook user... Read the rest of this entry →
How To: Retrieve Outlook Contact items using Restrict method
Eugene Astafiev | October 21st, 2011
In one of my previous articles I demonstrated the way of using the Restrict method against mail items. Now I am going to use this method against Contact items in Outlook... Read the rest of this entry →
How To: Use Find and FindNext to retrieve Outlook Contact items
Eugene Astafiev | October 19th, 2011
Not so long ago I described how to use the Find and FindNext methods to retrieve Outlook mail items from a folder. Today I am going to replace a mail item declaration with a contact declaration. There is no difference between mail and contact items in case we use the Find and FindNext methods... Read the rest of this entry →
How To: Send a Contact item in Outlook programmatically
Eugene Astafiev | October 14th, 2011
There are three ways of sending a contact in Outlook. Today we will examine them in detail. Please note that the ContactItem class doesn't provide the Send method like the MailItem class does... Read the rest of this entry →
Invoking a COM add-in from an Excel XLL add-in: advanced sample
Andrei Smolin | October 11th, 2011
Really often, when I saw an error returned by an Excel formula, I thought about the poor possibilities that this error-reporting approach – a remnant of bygone concepts – provides for developers. The very first time I thought about showing a custom task pane from a UDF was when Add-in Express allowed showing custom panes in Excel; it was back in 2007... Read the rest of this entry →
How To: Create a new Outlook Contact item programmatically
Eugene Astafiev | October 7th, 2011
Not so long ago I described various ways of creating Outlook messages programmatically. Today we will examine contact items. The first and easiest way of creating a new Contact item in Outlook is to use the CreateItem method of the Application class... Read the rest of this entry →
Thread-safe XLL. How to get the caller address
Andrei Smolin | October 7th, 2011
The implementation of ADXExcelRef.ConvertToA1Style (ConvertToR1C1Style) uses xlfRefText which is NOT thread-safe as per Financial Applications Using Excel Add-in Development in C/C++ (2nd edition). On the other hand, xlSheetNm returning the sheet name is thread-safe. It means that the thread-safe way to get the caller address is to write some code... Read the rest of this entry →
How To: Perform Send/Receive in Outlook programmatically
Eugene Astafiev | October 5th, 2011
Today I will continue my series of "How To" articles explaining the basics of Outlook development. The NameSpace class in Outlook provides a programmatic equivalent of the "Send/Receive All" command – SendAndReceive method
... Read the rest of this entry →
Creating a fast Excel add-in (C#, VB.NET). Reading and updating cells.
Andrei Smolin | September 29th, 2011
This is a known problem: doing things cell by cell in Excel is a slow operation. The Excel object model provides two ways to speed up the code... Read the rest of this entry →