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TypeBinaryExpression Class

Represents an operation between an expression and a type.

System.Object
  System.Linq.Expressions.Expression
    System.Linq.Expressions.TypeBinaryExpression

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

'Declaration
Public NotInheritable Class TypeBinaryExpression _
	Inherits Expression

The TypeBinaryExpression type exposes the following members.

  NameDescription
Public propertyCanReduceIndicates 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.)
Public propertySupported by Silverlight for Windows PhoneExpressionGets the expression operand of a type test operation.
Public propertySupported by Silverlight for Windows PhoneNodeTypeReturns the node type of this Expression. Extension nodes should return Extension when overriding this method. (Overrides Expression.NodeType.)

In Silverlight for Windows Phone Windows Phone OS 7.1, this member is inherited from Expression.NodeType.


In XNA Framework Windows Phone OS 7.0, this member is inherited from Expression.NodeType.
Public propertySupported by Silverlight for Windows PhoneTypeGets the static type of the expression that this Expression represents. (Inherited from Expression.)
Public propertyTypeGets the static type of the expression that this Expression represents. (Overrides Expression.Type.)
Public propertySupported by Silverlight for Windows PhoneTypeOperandGets the type operand of a type test operation.
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  NameDescription
Protected methodAcceptDispatches to the specific visit method for this node type. For example, MethodCallExpression calls the VisitMethodCall. (Inherited from Expression.)
Public methodSupported by Silverlight for Windows PhoneEquals(Object)Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
Protected methodSupported by Silverlight for Windows PhoneFinalizeAllows an object to try to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection. (Inherited from Object.)
Public methodSupported by Silverlight for Windows PhoneGetHashCodeServes as a hash function for a particular type. (Inherited from Object.)
Public methodSupported by Silverlight for Windows PhoneGetTypeGets the Type of the current instance. (Inherited from Object.)
Protected methodSupported by Silverlight for Windows PhoneMemberwiseCloneCreates a shallow copy of the current Object. (Inherited from Object.)
Public methodReduceReduces 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.)
Public methodReduceAndCheckReduces 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.)
Public methodReduceExtensionsReduces 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.)
Public methodSupported by Silverlight for Windows PhoneToStringReturns a textual representation of the Expression. (Inherited from Expression.)
Public methodUpdateCreates 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.
Protected methodVisitChildrenReduces 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.)
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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.

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 Int32 type.
Dim typeBinaryExpression As System.Linq.Expressions.TypeBinaryExpression = _
    System.Linq.Expressions.Expression.TypeIs( _
        System.Linq.Expressions.Expression.Constant("spruce"), _
        Type.GetType("System.Int32"))

outputBlock.Text &= typeBinaryExpression.ToString() & vbCrLf

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


Silverlight

Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

XNA Framework

Supported in: Windows Phone OS 7.0

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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