Specifies that an argument is passed by value, so that the called procedure or property cannot change the value of a variable underlying the argument in the calling code. If no modifier is specified, ByVal is the default.

You can pass arguments to a procedure (function or sub) by reference or by value. By default, Excel VBA passes arguments by reference. As always, we will use an easy example to make things more clear. Place a command button on your worksheet and add the following code lines:

ByVal is a function argument declaration in VBA that passes a copy of the value to a procedure or function without affecting the original value. Using ByVal is helpful when you want to prevent modifications to the original values of the arguments.

Guide to VBA Byval. Here we discuss how to use the ByVal argument in VBA along with the examples and downloadable excel sheet.

ByVal in VBA is used to get a variable with the original value assigned to it and use it in the current procedure. Let’s say a variable has a value of 20 in a procedure.

Mar 24, 2025 · ByRef (By Reference) and ByVal (By Value) are two methods of passing arguments (commonly referred to as ‘passing mechanisms’) to procedures in Visual Basic and VBA, each with distinct behaviors and implications for …

Jun 25, 2021 · There are subtle differences between using value types and reference types when passing data to a procedure using ByVal and ByRef. The table below describes the basics of what happens in each scenario. Copies the underlying data into the called procedure. You cannot modify the original data in the calling procedure.

Jun 22, 2022 · ただし、呼出元で変数ではなく、関数や数式を引数にした場合や、変数を括弧 ()で囲んだ場合は値渡し（ByVal）になります。 以下の記述は、呼出し先がByRef（参照渡し）でもByVal（値渡し）になります。 変数を評価して値を求めてから、その値を渡すことになります。 関数や数式なので、そのままでは渡すことはできないので、値評価後に値を渡します。 Dim i, j. i = 1. j = 1. Call sub1(i, . MsgBox i. MsgBox j. End Sub. Sub sub1(arg1, arg2) arg1 = . arg2 = …

Jun 18, 2024 · In the realm of VBA programming, understanding the distinction between passing arguments by value (`ByVal`) and by reference (`ByRef`) is crucial for writing efficient and bug-free code.

Aug 2, 2019 · This tutorial will help you understand the difference between passing variables with ByRef and ByVal in VBA (plus a little on variable scope and RAM).