The key Objects you should be aware of when migrating VBA to VSTO C#

This short article shows you the 2 key Objects when you migrate VBA code to VSTO C#.

One of the most important class that we will be use to get the value in VBA is the Range object. For example, if you want to get a value from C11 then you will write the code as follow.

Dim dbkPalletTot As Double

dblPalletTot = Range(“C11”).Value

In C# you cannot do

dblPalletTot = Range(“C11”).Value;

This will be error. So you have to do it like the below.

dblPalletTot = Range[“C11”].Value;

To refer to another Worksheet you will do this is in VBA using the Worksheet object.

Dim dbkPalletTot As Double

dblPalletTot = Worksheets(“Vaieables”).Range(“C2”).Value

Again if you get error if you do the following in C#.

dblPalletTot = Worksheets[“Vaieables”].Range[“C2”].Value;

You have to do.

dblPalletTot = this.Application.Worksheets[“Vaieables”].Range[“C2”].Value;


About chanmingman

Since March 2011 Microsoft Live Spaces migrated to Wordpress ( till now, I have is over 1 million viewers. This blog is about more than 50% telling you how to resolve error messages, especial for Microsoft products. The blog also has a lot of guidance teaching you how to get stated certain Microsoft technologies. The blog also uses as a help to keep my memory. The blog is never meant to give people consulting services or silver bullet solutions. It is a contribution to the community. Thanks for your support over the years. Ming Man is Microsoft MVP since year 2006. He is a software development manager for a multinational company. With 25 years of experience in the IT field, he has developed system using Clipper, COBOL, VB5, VB6, VB.NET, Java and C #. He has been using Visual Studio (.NET) since the Beta back in year 2000. He and the team have developed many projects using .NET platform such as SCM, and HR based applications. He is familiar with the N-Tier design of business application and is also an expert with database experience in MS SQL, Oracle and AS 400.
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