How do you pass parameters in VBA sub?
How do you pass parameters in VBA sub?
VBA allows you to pass variables into subroutines and functions in two ways. You can specify either ByVal or ByRef for each of the variables that are passed in. The ByVal and ByRef distinction for subroutine and function parameters is very important to make. In VBA all objects are passed by reference.
Can VBA subs take arguments?
Like a Function procedure, a Sub procedure is a separate procedure that can take arguments, perform a series of statements, and change the value of its arguments. However, unlike a Function procedure, which returns a value, a Sub procedure can’t be used in an expression.
How do you pass parameters in Excel VBA?
You can pass an argument by value if you include the ByVal keyword in the procedure’s declaration. Arguments passed by value consume from 2–16 bytes within the procedure, depending on the argument’s data type.
How do you define optional parameters in VBA?
Another way to define a procedure with optional parameters is to use overloading. If you have one optional parameter, you can define two overloaded versions of the procedure, one accepting the parameter and one without it. This approach becomes more complicated as the number of optional parameters increases.
How do you call a sub function in VBA?
How to Call Sub in VBA
- Design the user interface and set the properties for the user controls.
- Add the subroutine.
- Write the click event code for the command button that calls the subroutine.
- Test the application.
How do I create a sub procedure in VBA?
On the Insert menu, click Procedure. Type the name for the procedure in the Name box of the Insert Procedure dialog box. Select the type of procedure you want to create: Sub, Function, or Property. Set the procedure’s scope to either Public or Private.
How do I pass variables between macros?
To do that, you create what are called arguments. You come up with a name for a variable that you can use in the macro and put it in the middle of the parentheses at the top of the macro. This argument can then be used within the macro as a regular variable.
How do you define a sub or a function in VBA?
On the other hand, a function, also known as a user-defined function procedure, is a piece of code that executes a specific task determined by the Excel user and returns a result….VBA Sub vs Function: Key Differences.
| Sub | Function |
|---|---|
| Excel users can execute a VBA sub. | Excel users cannot execute VBA functions. |
How do you add an optional parameter?
By Params Keyword: You can implement optional parameters by using the params keyword. It allows you to pass any variable number of parameters to a method. But you can use the params keyword for only one parameter and that parameter is the last parameter of the method.
How do you use optional parameters?
A method that contains optional parameters does not force to pass arguments at calling time. It means we call method without passing the arguments. The optional parameter contains a default value in function definition. If we do not pass optional argument value at calling time, the default value is used.
How do you call a function with a parameter in VBA?
If you omit the Call keyword, you also must omit the parentheses around argumentlist. If you use either Call syntax to call any intrinsic or user-defined function, the function’s return value is discarded. To pass a whole array to a procedure, use the array name followed by empty parentheses.
What is sub procedure in VBA?
A Sub procedure is a series of Visual Basic statements enclosed by the Sub and End Sub statements that performs actions but doesn’t return a value. A Sub procedure can take arguments, such as constants, variables, or expressions that are passed by a calling procedure.