CodeDom Types Supported by Windows Workflow Foundation

Windows Workflow Foundation uses the types that are available in System.CodeDom, which is part of the .NET Framework. You can use these types to author your conditions. Some types are supported in conditions, some in rule actions, and some in both.

Note

System.CodeDom does not support unary operators, nor does it support value inequality, such as a != b. You can express value inequality indirectly by using an expression such as (a == b) == false.

The following tables show the supported System.CodeDom types.

Class	Used for
CodeArrayIndexerExpression	Conditions, Actions
CodeAssignStatement	Actions
CodeBinaryOperatorExpression	Conditions, Actions
CodeCastExpression	Conditions, Actions
CodeDirectionExpression	Conditions, Actions
CodeExpressionStatement	Actions
CodeFieldReferenceExpression	Conditions, Actions
CodeIndexerExpression	Conditions, Actions
CodeMethodInvokeExpression	Conditions, Actions
CodeMethodReferenceExpression	Conditions, Actions
CodePrimitiveExpression	Conditions, Actions
CodePropertyReferenceExpression	Conditions, Actions
CodeThisReferenceExpression	Conditions, Actions
CodeTypeReference	As part of expressions
CodeTypeReferenceExpression	Conditions, Actions

CodeBinaryOperatorType	Supported in
Add	Conditions, Actions
BitwiseAnd	Conditions, Actions
BitwiseOr	Conditions, Actions
BooleanAnd	Conditions, Actions
BooleanOr	Conditions, Actions
Divide	Conditions, Actions
GreaterThan	Conditions, Actions
GreaterThanOrEqual	Conditions, Actions
IdentityEquality	Conditions, Actions
IdentityInequality	Conditions, Actions
LessThan	Conditions, Actions
LessThanOrEqual	Conditions, Actions
Modulus	Conditions, Actions
Multiply	Conditions, Actions
Subtract	Conditions, Actions
ValueEquality	Conditions, Actions

See Also

Concepts

Using Conditions in Workflows