I have a workflow with Start Option "Start workflow automatically when an item is changed" and I have code that execute SPListItem.Update(), but this update doesn't force workflow to run execution. Why it doesn't work and how can I workaround this issue?
UPDATE: The workflow was created by SharePoint Designer and I don't use any Workflow functionality in my code, I just change values of SPListItems and update them.
please pay attention to the Task List. The Task lists execute the Workflow really. If you don't finalize the assigned task, your WF not run. This is my code to exceute a task and make te WF continue by the steps:
This code it's used ina SP WebPart, with a WorkFlow with two approvers.:
SPSecurity.RunWithElevatedPrivileges(delegate()
{
using (SPSite site = new SPSite(url))
{
using (SPWeb web = site.OpenWeb())
{
web.AllowUnsafeUpdates = true;
try
{
SPList task = web.Lists["Tasks"];
SPListItem item = task.Items.GetItemById(Convert.ToInt32(Request.Params["ID"]));
if (item["WorkflowListId"] != null)
{
Guid sourceListID = new Guid(item["WorkflowListId"].ToString());
SPList sourceList = web.Lists.GetList(sourceListID, true);
int sourceListItemID = Convert.ToInt32(item["WorkflowItemId"]);
SPListItem sourceListItem = sourceList.GetItemById(sourceListItemID);
if (sourceListItem["Aprobador"].ToString() == "Aprobador 1" && Convert.ToString(sourceListItem["State"]) == "En Revisión")
{
sourceListItem["State"] = "Approved 1";
sourceListItem["Approver"] = "Approver 1";
sourceListItem.Update();
//Get the workflow instance id from Task item
Guid taskWorkflowInstanceID = new Guid(item["WorkflowInstanceID"].ToString());
SPWorkflow workflow = item.Workflows[taskWorkflowInstanceID];
SPWorkflowTask wfTask = workflow.Tasks[item.UniqueId];
Hashtable ht = new Hashtable();
ht[SPBuiltInFieldId.Completed] = "TRUE";
ht["Completed"] = "TRUE";
ht[SPBuiltInFieldId.PercentComplete] = 1.0f;
ht["PercentComplete"] = 1.0f;
ht["Status"] = "Completed";
ht[SPBuiltInFieldId.TaskStatus] = SPResource.GetString(new CultureInfo((int)wfTask.Web.Language, false), Strings.WorkflowStatusInProgress, new object[0]);
ht[SPBuiltInFieldId.WorkflowOutcome] = "Approved";
ht["TaskStatus"] = "Approved";
ht["FormData"] = SPWorkflowStatus.InProgress;
SPWorkflowTask.AlterTask((wfTask as SPListItem), ht, true);
Response.Redirect(Request.Params["Source"]);
}
else
{
if (sourceListItem["Approver"].ToString() == "Aprobador 1" && Convert.ToString(sourceListItem["State"]) == "Approved 1")
{
sourceListItem["State"] = "Approved 2";
sourceListItem["Aprobador"] = "Approver 2";
sourceListItem.Update();
//Get the workflow instance id from Task item
Guid taskWorkflowInstanceID = new Guid(item["WorkflowInstanceID"].ToString());
SPWorkflow workflow = item.Workflows[taskWorkflowInstanceID];
SPWorkflowTask wfTask = workflow.Tasks[item.UniqueId];
Hashtable ht = new Hashtable();
ht[SPBuiltInFieldId.Completed] = "TRUE";
ht["Completed"] = "TRUE";
ht[SPBuiltInFieldId.PercentComplete] = 1.0f;
ht["PercentComplete"] = 1.0f;
ht["Status"] = "Completed";
ht[SPBuiltInFieldId.TaskStatus] = SPResource.GetString(new CultureInfo((int)wfTask.Web.Language, false), Strings.WorkflowStatusInProgress, new object[0]);
ht[SPBuiltInFieldId.WorkflowOutcome] = "Approved";
ht["TaskStatus"] = "Approved";
ht["FormData"] = SPWorkflowStatus.InProgress;
SPWorkflowTask.AlterTask((wfTask as SPListItem), ht, true);
Response.Redirect(Request.Params["Source"]);
}
}
}
}
catch (Exception ex)
{
}
finally
{
web.AllowUnsafeUpdates = false;
}
}
}
});
The list with attached WF have a two fields: Approver and State. But the code that run the Task and make advance the WF it's:
SPList task = web.Lists["Tasks"];
SPListItem item = task.Items.GetItemById(Convert.ToInt32(Request.Params["ID"]));
Guid taskWorkflowInstanceID = new Guid(item["WorkflowInstanceID"].ToString());
SPWorkflow workflow = item.Workflows[taskWorkflowInstanceID];
SPWorkflowTask wfTask = workflow.Tasks[item.UniqueId];
Hashtable ht = new Hashtable();
ht[SPBuiltInFieldId.Completed] = "TRUE";
ht["Completed"] = "TRUE";
ht[SPBuiltInFieldId.PercentComplete] = 1.0f;
ht["PercentComplete"] = 1.0f;
ht["Status"] = "Completed";
ht[SPBuiltInFieldId.TaskStatus] = SPResource.GetString(new CultureInfo((int)wfTask.Web.Language, false), Strings.WorkflowStatusInProgress, new object[0]);
ht[SPBuiltInFieldId.WorkflowOutcome] = "Approved";
ht["TaskStatus"] = "Approved";
ht["FormData"] = SPWorkflowStatus.InProgress;
SPWorkflowTask.AlterTask((wfTask as SPListItem), ht, true);
Have you associate that workflow with a list yet? see this and this link to associate your workflow with list/library.
And if you have associate your workflow with list/library but still not running, try to change your workflow behavior ie add log to history activity or send email activity to debug your workflow on runtime.
Also its a good idea to post some of your code (where do you write that splistitem.update thing) and explain more clearly to forum.
If you are updating List item using SPSecurity.RunWithElevatedPrivileges(delegate() statement, you have to use below SPSite constructor for creating object of SPSite.
using(SPSite site = new SPSite(SiteURL, UserToken))
For, fetching UserToken you may use below statement:
var userToken = SPContext.Current.Web.AllUsers["domain\\user"].UserToken;
