WorkflowInstance.ApplyWorkflowChanges(WorkflowChanges) Method

Definition

Namespace:

System.Workflow.Runtime

Assembly:

System.Workflow.Runtime.dll

Applies changes to the workflow instance specified by the WorkflowChanges object.

public:
 void ApplyWorkflowChanges(System::Workflow::ComponentModel::WorkflowChanges ^ workflowChanges);

public void ApplyWorkflowChanges (System.Workflow.ComponentModel.WorkflowChanges workflowChanges);

member this.ApplyWorkflowChanges : System.Workflow.ComponentModel.WorkflowChanges -> unit

Public Sub ApplyWorkflowChanges (workflowChanges As WorkflowChanges)

Parameters

workflowChanges

WorkflowChanges

A WorkflowChanges specifying dynamic updates for the workflow instance.

Exceptions

InvalidOperationException

The workflow runtime engine is not running.

Examples

The following example demonstrates calling ApplyWorkflowChanges to a WorkflowInstance object. This example is from the Ordering State Machine SDK sample, from the Mainform.cs file. For more information, see the Ordering State Machine Sample.

// Apply the changes to the workflow instance
try
{
    instance.ApplyWorkflowChanges(changes);
}
catch (WorkflowValidationFailedException)
{
    // New state has already been added
    MessageBox.Show("On Hold state has already been added to this workflow.");
}

' Apply the changes to the workflow instance
Try
    instance.ApplyWorkflowChanges(changes)
Catch e As WorkflowValidationFailedException
    ' New state has already been added
    MessageBox.Show("On Hold state has already been added to this workflow.")
End Try

Remarks

If the workflow instance is not already suspended, the workflow runtime engine temporarily suspends the instance before applying the changes.