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Expression.Increment Method (Expression)

Creates a UnaryExpression that represents the incrementing of the expression value by 1.

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

public static UnaryExpression Increment(
	Expression expression
)

Parameters

expression
Type: System.Linq.Expressions.Expression

An Expression to increment.

Return Value

Type: System.Linq.Expressions.UnaryExpression
A UnaryExpression that represents the incremented expression.

This expression is functional and does not change the value of the object that is passed to it.

The following code example shows how to create an expression that represents an increment operation.

// Add the following directive to your file: 
// using System.Linq.Expressions;   

// This expression represents an increment operation.  
double num = 5.5;
Expression incrementExpr = Expression.Increment(
                            Expression.Constant(num)
                        );


// Print out the expression.
Console.WriteLine(incrementExpr.ToString());

// The following statement first creates an expression tree, 
// then compiles it, and then executes it.
Console.WriteLine(Expression.Lambda<Func<double>>(incrementExpr).Compile()());

// The value of the variable did not change, 
// because the expression is functional.
Console.WriteLine("object: " + num);

// This code example produces the following output: 
// 
// Increment(5.5) 
// 6.5 
// object: 5.5

.NET Framework

Supported in: 4.6, 4.5, 4

.NET Framework Client Profile

Supported in: 4

Portable Class Library

Supported in: Portable Class Library

Supported in: Windows Phone 8.1

Supported in: Windows Phone Silverlight 8.1

Supported in: Windows Phone Silverlight 8
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