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Expression.MakeBinary Method (ExpressionType, Expression, Expression)

Creates a BinaryExpression, given the left and right operands, by calling an appropriate factory method.

Namespace:  System.Linq.Expressions
Assembly:  System.Core (in System.Core.dll)

public static BinaryExpression MakeBinary(
	ExpressionType binaryType,
	Expression left,
	Expression right
)

Parameters

binaryType
Type: System.Linq.Expressions.ExpressionType

The ExpressionType that specifies the type of binary operation.

left
Type: System.Linq.Expressions.Expression

An Expression that represents the left operand.

right
Type: System.Linq.Expressions.Expression

An Expression that represents the right operand.

Return Value

Type: System.Linq.Expressions.BinaryExpression
The BinaryExpression that results from calling the appropriate factory method.

ExceptionCondition
ArgumentException

binaryType does not correspond to a binary expression node.

ArgumentNullException

left or right is null.

The binaryType parameter determines which BinaryExpression factory method this method calls. For example, if binaryType is Subtract, this method invokes Subtract.

The following example demonstrates how to use the MakeBinary(ExpressionType, Expression, Expression) method to create a BinaryExpression 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)

Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5

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