/= Operator
Important This document may not represent best practices for current development, links to downloads and other resources may no longer be valid. Current recommended version can be found here. ArchiveDisclaimer

/= Operator (Visual Basic) 

Divides the value of a variable or property by the value of an expression and assigns the floating-point result to the variable or property.

variableorproperty /= expression


Required. Any numeric variable or property.


Required. Any numeric expression.

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 (Visual Basic). The /= operator assigns the value on its right to the variable or property on its left.

This statement assigns a Double value to the variable or property on the left hand side. If Option Strict is On, variableorproperty must be a Double. If Option Strict is Off, Visual Basic performs an implicit conversion and assigns the resulting value to variableorproperty, with a possible error at run time. For more information, see Widening and Narrowing Conversions and Option Strict Statement.


The / Operator (Visual Basic) 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.

The following example uses the /= operator to divide one Integer variable by a second and assign the quotient to the first variable.

Dim var1 As Integer = 12
Dim var2 As Integer = 3
var1 /= var2
' The value of var1 is now 4.

© 2016 Microsoft