Start a SharePoint 2013 Workflow with CSOM

workflow.cs

The way workflow get triggered from code behind is different in SharePoint 2013 


//Instantiate Workflow Manager

var wsm = new Microsoft.SharePoint.WorkflowServices.WorkflowServicesManager(web);

//Get Workflow Instane ID

var subscription = wsm.GetWorkflowSubscriptionService().GetSubscription(new Guid("{2DC2893B-DEC0-433A-BB34-8DC0CD9CC8FC}"));

//Start Workflow

var wfi = wsm.GetWorkflowInstanceService();

var payload = new Dictionary<string, object>();

payload.Add("ItemId", itemToUpdate.ID);

payload.Add("WorkflowStart", "StartWorkflow");

wfi.StartWorkflowOnListItem(subscription, itemToUpdate.ID, payload);