How do I start a workflow from a timer job?

Question

I need to start a particular workflow in a list from a timer job. Is there any sample code for starting the workflow in the timer job's Execute() method?

Answer 1

Try this...

public override void Execute (Guid targetInstanceId)
{
    SPWorkflowManager workflowManager = 
        this.WebApplication.Sites["GUID"].WorkflowManager;
    SPWorkflowAssociationCollection workflowAssociationCollection = 
        this.WebApplication.Sites["GUID"].RootWeb.Lists["ID"].WorkflowAssociations;

    foreach (SPWorkflowAssociation workflowAssociation in workflowAssociationCollection)
    {
        if (String.Compare(
                workflowAssociation.BaseId.ToString("B"), {"Workflow GUID"}, true) == 0)
        {
            workflowManager.StartWorkflow("GETYOUR ITEM OR LIST OBJECT",
                        workflowAssociation, workflowAssociation.AssociationData, true); 
            break;
        }
    }
}