Blog Post: Programmatically calling validation in a rehosted Workflow 4 designer

The workflow designer has a rich programming model that supports communication with the host. In order to programmatically call validation on a rehosted designer, use the following method:

designer.Context.Services.GetService<ValidationSErvice>().ValidateWorkflow();

To handle resulting validation errors, publish an implementation of IValidationErrorService, which will expose the set of errors through ValidationService.NavigateTo().

Mischa Barton Jamie Lynn Sigler Stacy Keibler Rihanna America Ferrera