InvokeWorkflowActivity to invoke another workflow

Question

From my custom SharePoint workflow I want to invoke another workflow and for this I am using the InvokeWorkflowActivity.  Unfortunately the host workflow completes but the second workflow does not even start.  Is the InvokeWorkflowActivity supported in SharePoint in the first place?

Answer 1

so just to be clear, you want to call another workflow programmatically from the initial workflow?

if this is what you're trying to do, as luck would have it i wrote a blog post about just that exact functionality:

http://blogs.msdn.com/b/sharepointdev/archive/2011/08/23/calling-sharepoint-workflow-instances-programmatically-from-other-sharepoint-workflows.aspx

:)

the cliff notes are that you will need to first find the workflow's association template on the list, then instantiate a new workflow manager and start the workflow.

Guid svpwfid = new Guid("4e126fc9-6b12-1212-8c21-21120f264bad");
var wfa = (from SPWorkflowAssociation spwfa in workflowProperties.Item.ParentList.WorkflowAssociations
           where spwfa.BaseId == svpwfid && spwfa.Enabled == true
           select spwfa).FirstOrDefault();

if (wfa != null)
{
    SPWorkflowManager wfMan = workflowProperties.Item.ParentList.ParentWeb.Site.WorkflowManager;
    wfMan.StartWorkflow(workflowProperties.Item, wfa, wfa.AssociationData, true);
}
else
{
    // could not find workflow template.
}

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Justin Joyce SharePoint Solution Architect http://lantekcs.com

Answer 2

Actually I am specifically referring to the InvokeWorkflowActivity not doing it programatically.