What are the differences between ByVal and ByRef in VB.NET?

Focus Keyword: ByVal vs. ByRef in VB.NET

In VB.NET, ByVal and ByRef are used to pass arguments to procedures. The main difference between ByVal and ByRef is how they handle the passing of the arguments:

• ByVal: When a parameter is passed by value (ByVal), a copy of the argument's value is passed to the procedure. Any changes made to the parameter inside the procedure will not affect the original value outside of the procedure.
• ByRef: When a parameter is passed by reference (ByRef), the procedure receives a reference to the original argument. Any changes made to the parameter inside the procedure will directly affect the original value outside of the procedure.

It is important to choose between ByVal and ByRef based on whether you want the changes to the parameter inside the procedure to reflect on the original value.