floating-point-division-assignment-operator.md

title	/= Operator (Visual Basic)
ms.date	07/20/2015
ms.prod	.net
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ms.technology	devlang-visual-basic
ms.topic	article
f1_keywords	vb./=
helpviewer_keywords	assignment statements [Visual Basic], compound statements [Visual Basic], compound assignment /= operator [Visual Basic] operator /= compound assignment statements [Visual Basic]
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/= 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.

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 divides the value of the variable or property (on the left-hand side of the operator) by the value of the expression (on the right-hand side of the operator). The operator then assigns the floating-point result of that operation to the variable or property.

This statement assigns a Double value to the variable or property on the left. 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.

Overloading

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.

Example

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

[!code-vbVbVbalrOperators#17]

See Also

/ Operator (Visual Basic)
\= Operator
Assignment Operators
Arithmetic Operators
Operator Precedence in Visual Basic
Operators Listed by Functionality
Statements