Gets or sets the field or the property to be extracted from the root activity when a track point is matched.
Assembly: System.Workflow.Runtime (in System.Workflow.Runtime.dll)
can be set to specify a field or property of the root activity; a member of such a field or property; or a single element of a field or property (or a member of either) that implements the IEnumerable interface. For example, if the root activity has a string property named "MyString" and you want the runtime tracking infrastructure to return its length, you can set to "MyString.length". Alternatively, to return the second char in "MyString", you can set to "MyString".
must be the real name of a property on the activity type. This name may be different from what you see in the designer because the designer supports the ability to localize and map property names.