Parameters
Another way to define variables is through the use of formal method parameters. Table C.1 outlines the four types of method parameters.
| Parameter Type | Modifier | Description |
|---|---|---|
| value | ByVal | Modifications do not impact original argument passed into the method |
| reference | ByRef | Modifications directly impact original argument passed into the method |
| optional | Optional | Does not require the argument to be supplied; however, a default value must be supplied in the argument declaration |
| parameter array | ParamArray | Enables variable length parameter lists |
Consider the following class that employs each of the parameter types:
Imports System Class Test Sub ValueParamMethod(a As Integer) a = a + 2 ' the orginal parameter ...
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