Represents an operation between an expression and a type.
Assemblies: System.Linq.Expressions (in System.Linq.Expressions.dll)
System.Core (in System.Core.dll)
Thetype exposes the following members.
|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. (Overrides Expression.NodeType.)|
|Type||Gets the static type of the expression that this Expression represents. (Overrides Expression.Type.)|
|TypeOperand||Gets the type operand of a type test operation.|
|Accept||Dispatches to the specific visit method for this node type. For example, MethodCallExpression calls the VisitMethodCall. (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.)|
|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||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||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.)|
The following example creates a 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)