Export (0) Print
Expand All

ActivityChangeAction.ValidateChanges Method

Validates the changes pending on the target activity.

Namespace:  System.Workflow.ComponentModel
Assembly:  System.Workflow.ComponentModel (in System.Workflow.ComponentModel.dll)

protected internal override ValidationErrorCollection ValidateChanges(
	Activity contextActivity


Type: System.Workflow.ComponentModel.Activity

The activity to have its changes validated.

Return Value

Type: System.Workflow.ComponentModel.Compiler.ValidationErrorCollection
A ValidationErrorCollection that contains any ValidationError resulting from running each Validator defined for the target activity.


contextActivity is a null reference (Nothing in Visual Basic).

If contextActivity cannot be safely cast to a CompositeActivity a null reference is returned.

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

© 2014 Microsoft