TypeBinaryExpression Class

Definition

Namespace:

System.Linq.Expressions

Assembly:

System.Linq.Expressions.dll

Source:

TypeBinaryExpression.cs

Represents an operation between an expression and a type.

public ref class TypeBinaryExpression sealed : System::Linq::Expressions::Expression

public sealed class TypeBinaryExpression : System.Linq.Expressions.Expression

type TypeBinaryExpression = class
    inherit Expression

Public NotInheritable Class TypeBinaryExpression
Inherits Expression

Inheritance

Object

Expression

TypeBinaryExpression

Examples

The following example creates a TypeBinaryExpression object that represents a type test of a string value against the Int32 type.

// Create a TypeBinaryExpression that represents a
// type test of the string "spruce" against the 'int' type.
System.Linq.Expressions.TypeBinaryExpression typeBinaryExpression =
    System.Linq.Expressions.Expression.TypeIs(
        System.Linq.Expressions.Expression.Constant("spruce"),
        typeof(int));

Console.WriteLine(typeBinaryExpression.ToString());

// This code produces the following output:
//
// ("spruce" Is Int32)

' Create a TypeBinaryExpression that represents a
' type test of the String "spruce" against the Int32 type.
Dim typeBinaryExpression As System.Linq.Expressions.TypeBinaryExpression = _
    System.Linq.Expressions.Expression.TypeIs( _
        System.Linq.Expressions.Expression.Constant("spruce"), _
        Type.GetType("System.Int32"))

Console.WriteLine(typeBinaryExpression.ToString())

' This code produces the following output:
'
' ("spruce" Is Int32)

Remarks

A type test is an example of an operation between an expression and a type.

Use the TypeIs factory method to create a TypeBinaryExpression.

The value of the NodeType property of a TypeBinaryExpression object is TypeIs.

Properties

CanReduce	Indicates that the node can be reduced to a simpler node. If this returns true, Reduce() can be called to produce the reduced form. (Inherited from Expression)
Expression	Gets the expression operand of a type test operation.
NodeType	Returns the node type of this Expression. Extension nodes should return Extension when overriding this method.
Type	Gets the static type of the expression that this Expression represents.
TypeOperand	Gets the type operand of a type test operation.

Methods

Accept(ExpressionVisitor)	Dispatches to the specific visit method for this node type. For example, MethodCallExpression calls the VisitMethodCall(MethodCallExpression). (Inherited from Expression)
Equals(Object)	Determines whether the specified object is equal to the current object. (Inherited from Object)
GetHashCode()	Serves as the default hash function. (Inherited from Object)
GetType()	Gets the Type of the current instance. (Inherited from Object)
MemberwiseClone()	Creates a shallow copy of the current Object. (Inherited from Object)
Reduce()	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)
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()	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()	Returns a textual representation of the Expression. (Inherited from Expression)
Update(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)	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)