mysocialtore.blogg.se - Terminate program in structorizer

ByRef - The argument is passed by Reference.

a copy of the argument) is passed to the procedure and therefore, any changes that are made to the argument inside the procedure will be lost when the procedure is exited.

ByVal - The argument is passed by Value.

When arguments are passed to VBA procedures, they can be passed in two ways: Passing Arguments By Value and By Reference You can use multiple Optional arguments in a VBA procedure, as long the Optional arguments are all positioned at the end of the argument list. In this case, the supplied integer, i, has a default value of 0. Sub AddToCells( Optional i As Integer = 0) To return to the example above, if we wanted to make the supplied integer argument optional, this would be declared as follows: These are arguments that the user can supply if they want, but if they are omitted, the procedure will assign a default value to them. You can also define VBA procedures to have Optional arguments. Note that it is not essential for VBA Functions or Subs to have arguments. You could supply the value of the integer to the Sub via an argument, as follows: Sub AddToCells(i As Integer)

For example, you could have a VBA Sub procedure that adds an Integer to every cell in the current selected range on a worksheet. VBA procedures can be passed data via arguments, which are declared in the procedure definition. formatting a set of cells), you might choose to use a Sub procedure. summing of a group of numbers), you will generally use a Function procedure, but if you just need a set of actions to be carried out (e.g. Therefore, if you wish to perform a task that returns a result (e.g. The main difference between a VBA Function procedure and a Sub procedure is that a Function procedure returns a result, whereas a Sub procedure does not.

In Excel Visual Basic, a set of commands to perform a specific task is placed into a procedure, which can be a Function procedure or a Sub procedure (also known as functions and subroutines). User-Defined VBA Function & Sub Procedures Before you consider creating your own VBA Functions, it is useful to know that there are a large number of built-in VBA functions that you can use in your code.įor a list of the main built-in VBA functions, with examples, see the VBA Functions page.