Clarify Event Raising in Structures and Add Code Example for Triggering Events

docs/visual-basic/programming-guide/language-features/data-types/how-to-declare-a-structure.md

@@ -44,11 +44,24 @@ You begin a structure declaration with the [Structure Statement](../../../langua
             salary *= raise  
         End Sub  
         Public Event salaryReviewTime()  
+
+        ' Method to raise the event
+        Public Sub TriggerSalaryReview()
+            RaiseEvent salaryReviewTime()
+        End Sub
     End Structure  
     ```  
 
-     The `salary` field in the preceding example is `Private`, which means it is inaccessible outside the structure, even from the containing class. However, the `giveRaise` procedure is `Public`, so it can be called from outside the structure. Similarly, you can raise the `salaryReviewTime` event from outside the structure.  
-
+     The `salary` field in the preceding example is `Private`, which means it is inaccessible outside the structure, even from the containing class. However, the `giveRaise` procedure is `Public`, so it can be called from outside the structure. Similarly, you can raise the `salaryReviewTime` event indirectly by calling a method within the structure that raises it. For example:  
+
+     ```vb
+     Public Sub TriggerSalaryReview()
+         RaiseEvent salaryReviewTime()
+     End Sub
+     ```  
+
+     This allows you to control how and when the event is raised while keeping the event inaccessible directly from outside the structure.
+
      In addition to variables, `Sub` procedures, and events, you can also define constants, `Function` procedures, and properties in a structure. You can designate at most one property as the *default property*, provided it takes at least one argument. You can handle an event with a [Shared](../../../language-reference/modifiers/shared.md)`Sub` procedure. For more information, see [How to: Declare and Call a Default Property in Visual Basic](../procedures/how-to-declare-and-call-a-default-property.md).  
 
 ## See also