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Microsoft Visual Studio 2010: A Beginner’s Guide
Writing Macros
When the productivity features that ship with VS and custom snippets don’t give you 
enough power, the next step is to consider creating a macro, which is a repeatable set of 
actions that you can record and re-run multiple times. An example of when a macro is 
useful is whenever you find yourself continuously repeating the same set of actions in VS. 
This section will show you how to create and run a macro that uses VS features to create a 
customized block of code for validating strings.
Recording a Macro
When creating business objects, it’s common to validate input parameters to ensure they 
are valid. One such validation is enforcing that calling code pass a required parameter. 
The example in this section shows you how to write a macro for validating that a string-
type parameter is not null, empty, or white space (such as a space or tab). To get started, 
create a new Console project and add a Class file with the following method to the project, 
which simulates adding a new customer:
C#:
using System; 
 
class Customer 

    public int AddNewCustomer(string firstName, string lastName) 
    { 
        int newCustID = 0; 
 
        // Logic to add customer 
 
        return newCustID; 
    } 
}
VB:
Public Class Customer 
 
    Function AddNewCustomer( 
        ByVal firstName As String,  
        ByVal lastName As String) As Integer 
 
        Dim newCustID As Integer = 0 
 
        ' Logic to add customer