Expression.AddAssign Method

Reference

Definition

Namespace:: System.Linq.Expressions

Assemblies:: System.Core.dll, System.Linq.Expressions.dll

Assemblies:: netstandard.dll, System.Linq.Expressions.dll

Assembly:: System.Linq.Expressions.dll

Assembly:: System.Core.dll

Assembly:: netstandard.dll

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Creates a BinaryExpression that represents an addition assignment operation that does not have overflow checking.

Overloads

AddAssign(Expression, Expression)	Creates a BinaryExpression that represents an addition assignment operation that does not have overflow checking.
AddAssign(Expression, Expression, MethodInfo)	Creates a BinaryExpression that represents an addition assignment operation that does not have overflow checking.
AddAssign(Expression, Expression, MethodInfo, LambdaExpression)	Creates a BinaryExpression that represents an addition assignment operation that does not have overflow checking.

AddAssign(Expression, Expression)

Source:: BinaryExpression.cs

Source:: BinaryExpression.cs

Source:: BinaryExpression.cs

Creates a BinaryExpression that represents an addition assignment operation that does not have overflow checking.

public:
 static System::Linq::Expressions::BinaryExpression ^ AddAssign(System::Linq::Expressions::Expression ^ left, System::Linq::Expressions::Expression ^ right);

public static System.Linq.Expressions.BinaryExpression AddAssign(System.Linq.Expressions.Expression left, System.Linq.Expressions.Expression right);

static member AddAssign : System.Linq.Expressions.Expression * System.Linq.Expressions.Expression -> System.Linq.Expressions.BinaryExpression

Public Shared Function AddAssign (left As Expression, right As Expression) As BinaryExpression

Parameters

left: Expression

An Expression to set the Left property equal to.

right: Expression

An Expression to set the Right property equal to.

Returns

BinaryExpression

A BinaryExpression that has the NodeType property equal to AddAssign and the Left and Right properties set to the specified values.

Examples

The following code example shows how to create an expression that adds a value to an integer variable and then assigns the result of the operation to the variable.

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

// The Parameter expression is used to create a variable.
ParameterExpression variableExpr = Expression.Variable(typeof(int), "sampleVar");

// The block expression enables you to execute several expressions sequentually.
// In this bloc, the variable is first initialized with 1.
// Then the AddAssign method adds 2 to the variable and assigns the result to the variable.
BlockExpression addAssignExpr = Expression.Block(
    new ParameterExpression[] { variableExpr },
    Expression.Assign(variableExpr, Expression.Constant(1)),
    Expression.AddAssign(
        variableExpr,
        Expression.Constant(2)
    )
);

// Print out the expression from the block expression.
Console.WriteLine("The expressions from the block expression:");
foreach (var expr in addAssignExpr.Expressions)
    Console.WriteLine(expr.ToString());

Console.WriteLine("The result of executing the expression tree:");
// The following statement first creates an expression tree,
// then compiles it, and then executes it.
Console.WriteLine(Expression.Lambda<Func<int>>(addAssignExpr).Compile()());

// This code example produces the following output:
//
// The expressions from the block expression:
// (sampleVar = 1)
// (sampleVar += 2)

// The result of executing the expression tree:
// 3

' Add the following directive to your file:
' Imports System.Linq.Expressions 

' The parameter expression is used to create a variable.
Dim variableExpr As ParameterExpression = Expression.Variable(GetType(Integer), "sampleVar")

' The block expression enables you to execute several expressions sequentually.
' In this block, the variable is first initialized with 1. 
' Then the AddAssign method adds 2 to the variable and assigns the result to the variable.
Dim addAssignExpr As BlockExpression = Expression.Block(
    New ParameterExpression() {variableExpr},
    Expression.Assign(variableExpr, Expression.Constant(1)),
    Expression.AddAssign(
        variableExpr,
        Expression.Constant(2)
    )
)

' Print the expression from the block expression.
Console.WriteLine("The expressions from the block expression:")
For Each expr As Expression In addAssignExpr.Expressions
    Console.WriteLine(expr.ToString())
Next

Console.WriteLine("The result of executing the expression tree:")
' The following statement first creates an expression tree,
' then compiles it, and then executes it.
Console.WriteLine(Expression.Lambda(Of Func(Of Integer))(addAssignExpr).Compile()())

' This code example produces the following output:
'
' The expressions from the block expression:
' (sampleVar = 1)
' (sampleVar += 2)

' The result of executing the expression tree:
' 3

Applies to

.NET 10 and other versions

Product	Versions
.NET	Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9, 10
.NET Framework	4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1
.NET Standard	1.0, 1.1, 1.2, 1.3, 1.4, 1.6, 2.0, 2.1
UWP	10.0

AddAssign(Expression, Expression, MethodInfo)

Source:: BinaryExpression.cs

Source:: BinaryExpression.cs

Source:: BinaryExpression.cs

Creates a BinaryExpression that represents an addition assignment operation that does not have overflow checking.

public:
 static System::Linq::Expressions::BinaryExpression ^ AddAssign(System::Linq::Expressions::Expression ^ left, System::Linq::Expressions::Expression ^ right, System::Reflection::MethodInfo ^ method);

public static System.Linq.Expressions.BinaryExpression AddAssign(System.Linq.Expressions.Expression left, System.Linq.Expressions.Expression right, System.Reflection.MethodInfo method);

public static System.Linq.Expressions.BinaryExpression AddAssign(System.Linq.Expressions.Expression left, System.Linq.Expressions.Expression right, System.Reflection.MethodInfo? method);

static member AddAssign : System.Linq.Expressions.Expression * System.Linq.Expressions.Expression * System.Reflection.MethodInfo -> System.Linq.Expressions.BinaryExpression

Public Shared Function AddAssign (left As Expression, right As Expression, method As MethodInfo) As BinaryExpression

Parameters

left: Expression

An Expression to set the Left property equal to.

right: Expression

An Expression to set the Right property equal to.

method: MethodInfo

A MethodInfo to set the Method property equal to.

Returns

BinaryExpression

A BinaryExpression that has the NodeType property equal to AddAssign and the Left, Right, and Method properties set to the specified values.

Applies to

.NET 10 and other versions

Product	Versions
.NET	Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9, 10
.NET Framework	4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1
.NET Standard	1.0, 1.1, 1.2, 1.3, 1.4, 1.6, 2.0, 2.1
UWP	10.0

AddAssign(Expression, Expression, MethodInfo, LambdaExpression)

Source:: BinaryExpression.cs

Source:: BinaryExpression.cs

Source:: BinaryExpression.cs

Creates a BinaryExpression that represents an addition assignment operation that does not have overflow checking.

public:
 static System::Linq::Expressions::BinaryExpression ^ AddAssign(System::Linq::Expressions::Expression ^ left, System::Linq::Expressions::Expression ^ right, System::Reflection::MethodInfo ^ method, System::Linq::Expressions::LambdaExpression ^ conversion);

public static System.Linq.Expressions.BinaryExpression AddAssign(System.Linq.Expressions.Expression left, System.Linq.Expressions.Expression right, System.Reflection.MethodInfo method, System.Linq.Expressions.LambdaExpression conversion);

public static System.Linq.Expressions.BinaryExpression AddAssign(System.Linq.Expressions.Expression left, System.Linq.Expressions.Expression right, System.Reflection.MethodInfo? method, System.Linq.Expressions.LambdaExpression? conversion);

static member AddAssign : System.Linq.Expressions.Expression * System.Linq.Expressions.Expression * System.Reflection.MethodInfo * System.Linq.Expressions.LambdaExpression -> System.Linq.Expressions.BinaryExpression

Public Shared Function AddAssign (left As Expression, right As Expression, method As MethodInfo, conversion As LambdaExpression) As BinaryExpression

Parameters

left: Expression

An Expression to set the Left property equal to.

right: Expression

An Expression to set the Right property equal to.

method: MethodInfo

A MethodInfo to set the Method property equal to.

conversion: LambdaExpression

A LambdaExpression to set the Conversion property equal to.

Returns

BinaryExpression

A BinaryExpression that has the NodeType property equal to AddAssign and the Left, Right, Method, and Conversion properties set to the specified values.

Applies to

.NET 10 and other versions

Product	Versions
.NET	Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9, 10
.NET Framework	4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1
.NET Standard	1.0, 1.1, 1.2, 1.3, 1.4, 1.6, 2.0, 2.1
UWP	10.0

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Expression.AddAssign Method

Definition

Overloads

AddAssign(Expression, Expression)

Parameters

Returns

Examples

Applies to

AddAssign(Expression, Expression, MethodInfo)

Parameters

Returns

Applies to

AddAssign(Expression, Expression, MethodInfo, LambdaExpression)

Parameters

Returns

Applies to

Additional resources