*= Operator (Visual Basic)
Multiplies the value of a variable or property by the value of an expression and assigns the result to the variable or property.
Syntax
variableorproperty *= expression
Parts
variableorproperty
Required. Any numeric variable or property.
expression
Required. Any numeric expression.
Remarks
The element on the left side of the *=
operator can be a simple scalar variable, a property, or an element of an array. The variable or property cannot be ReadOnly.
The *=
operator first multiplies the value of the expression (on the right-hand side of the operator) by the value of the variable or property (on the left-hand side of the operator). The operator then assigns the result of that operation to the variable or property.
Overloading
The * Operator can be overloaded, which means that a class or structure can redefine its behavior when an operand has the type of that class or structure. Overloading the *
operator affects the behavior of the *=
operator. If your code uses *=
on a class or structure that overloads *
, be sure you understand its redefined behavior. For more information, see Operator Procedures.
Example
The following example uses the *=
operator to multiply one Integer
variable by a second and assign the result to the first variable.
Dim var1 As Integer = 10
Dim var2 As Integer = 3
var1 *= var2
' The value of var1 is now 30.
See also
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