BinaryExpression BinaryExpression BinaryExpression BinaryExpression Class

Definition

Represents an expression that has a binary operator.

public ref class BinaryExpression : System::Linq::Expressions::Expression
public class BinaryExpression : System.Linq.Expressions.Expression
type BinaryExpression = class
    inherit Expression
Public Class BinaryExpression
Inherits Expression
Inheritance
BinaryExpressionBinaryExpressionBinaryExpressionBinaryExpression

Examples

The following example creates a BinaryExpression object that represents the subtraction of one number from another.

// Create a BinaryExpression that represents subtracting 14 from 53.
System.Linq.Expressions.BinaryExpression binaryExpression =
    System.Linq.Expressions.Expression.MakeBinary(
        System.Linq.Expressions.ExpressionType.Subtract,
        System.Linq.Expressions.Expression.Constant(53),
        System.Linq.Expressions.Expression.Constant(14));

Console.WriteLine(binaryExpression.ToString());

// This code produces the following output:
//
// (53 - 14)
' Create a BinaryExpression that represents subtracting 14 from 53.
Dim binaryExpression As System.Linq.Expressions.BinaryExpression = _
    System.Linq.Expressions.Expression.MakeBinary( _
        System.Linq.Expressions.ExpressionType.Subtract, _
        System.Linq.Expressions.Expression.Constant(53), _
        System.Linq.Expressions.Expression.Constant(14))

Console.WriteLine(binaryExpression.ToString())

' This code produces the following output:
'
' (53 - 14)

Remarks

The following tables summarize the factory methods that can be used to create a BinaryExpression that has a specific node type, represented by the NodeType property. Each table contains information for a specific class of operations such as arithmetic or bitwise.

Binary Arithmetic Operations

Node Type Factory Method
Add Add
AddChecked AddChecked
Divide Divide
Modulo Modulo
Multiply Multiply
MultiplyChecked MultiplyChecked
Power Power
Subtract Subtract
SubtractChecked SubtractChecked

Bitwise Operations

Node Type Factory Method
And And
Or Or
ExclusiveOr ExclusiveOr

Shift Operations

Node Type Factory Method
LeftShift LeftShift
RightShift RightShift

Conditional Boolean Operations

Node Type Factory Method
AndAlso AndAlso
OrElse OrElse

Comparison Operations

Node Type Factory Method
Equal Equal
NotEqual NotEqual
GreaterThanOrEqual GreaterThanOrEqual
GreaterThan GreaterThan
LessThan LessThan
LessThanOrEqual LessThanOrEqual

Coalescing Operations

Node Type Factory Method
Coalesce Coalesce

Array Indexing Operations

Node Type Factory Method
ArrayIndex ArrayIndex

In addition, the MakeBinary methods can also be used to create a BinaryExpression. These factory methods can be used to create a BinaryExpression of any node type that represents a binary operation. The parameter of these methods that is of type NodeType specifies the desired node type.

Properties

CanReduce CanReduce CanReduce CanReduce

Gets a value that indicates whether the expression tree node can be reduced.

Conversion Conversion Conversion Conversion

Gets the type conversion function that is used by a coalescing or compound assignment operation.

IsLifted IsLifted IsLifted IsLifted

Gets a value that indicates whether the expression tree node represents a lifted call to an operator.

IsLiftedToNull IsLiftedToNull IsLiftedToNull IsLiftedToNull

Gets a value that indicates whether the expression tree node represents a lifted call to an operator whose return type is lifted to a nullable type.

Left Left Left Left

Gets the left operand of the binary operation.

Method Method Method Method

Gets the implementing method for the binary operation.

NodeType NodeType NodeType NodeType

Gets the node type of this Expression.

(Inherited from Expression)
Right Right Right Right

Gets the right operand of the binary operation.

Type Type Type Type

Gets the static type of the expression that this Expression represents.

(Inherited from Expression)

Methods

Accept(ExpressionVisitor) Accept(ExpressionVisitor) Accept(ExpressionVisitor) Accept(ExpressionVisitor)

Dispatches to the specific visit method for this node type. For example, MethodCallExpression calls the VisitMethodCall(MethodCallExpression).

Equals(Object) Equals(Object) Equals(Object) Equals(Object)

Determines whether the specified object is equal to the current object.

(Inherited from Object)
GetHashCode() GetHashCode() GetHashCode() GetHashCode()

Serves as the default hash function.

(Inherited from Object)
GetType() GetType() GetType() GetType()

Gets the Type of the current instance.

(Inherited from Object)
MemberwiseClone() MemberwiseClone() MemberwiseClone() MemberwiseClone()

Creates a shallow copy of the current Object.

(Inherited from Object)
Reduce() Reduce() Reduce() Reduce()

Reduces the binary expression node to a simpler expression.

ReduceAndCheck() ReduceAndCheck() ReduceAndCheck() ReduceAndCheck()

Reduces this node to a simpler expression. If CanReduce returns true, this should return a valid expression. This method can return another node which itself must be reduced.

(Inherited from Expression)
ReduceExtensions() ReduceExtensions() ReduceExtensions() ReduceExtensions()

Reduces the expression to a known node type (that is not an Extension node) or just returns the expression if it is already a known type.

(Inherited from Expression)
ToString() ToString() ToString() ToString()

Returns a textual representation of the Expression.

(Inherited from Expression)
Update(Expression, LambdaExpression, Expression) Update(Expression, LambdaExpression, Expression) Update(Expression, LambdaExpression, Expression) Update(Expression, LambdaExpression, Expression)

Creates a new expression that is like this one, but using the supplied children. If all of the children are the same, it will return this expression.

VisitChildren(ExpressionVisitor) VisitChildren(ExpressionVisitor) VisitChildren(ExpressionVisitor) VisitChildren(ExpressionVisitor)

Reduces the node and then calls the visitor delegate on the reduced expression. The method throws an exception if the node is not reducible.

(Inherited from Expression)

Applies to