Question

我正在尝试以编程方式启动SharePoint 2013工作流程。工作流程采用五个参数，将它们放入电子邮件正文中并通过电子邮件发送给我。当我访问SharePoint网站时，我可以手动启动此工作流程，因此我知道工作流程是正确的。当我尝试使用SharePoint API来启动工作流程时，我没有收到任何错误，我得到一个空的Guid，并且工作流程没有运行。

public Guid Add(Project project)
{
    var result = Guid.Empty;
    var siteUri = new Uri(ConfigurationManager.AppSettings["SharePoint.Site"]);
    var workflowName = ConfigurationManager.AppSettings["SharePoint.WorkflowName"];
    using (var clientContext = TokenHelper.GetS2SClientContextWithWindowsIdentity(siteUri, null))
    {
        var workflowServiceManager = new WorkflowServicesManager(clientContext, clientContext.Web);
        var workflowSubscriptionService = workflowServiceManager.GetWorkflowSubscriptionService();
        var subscriptions = workflowSubscriptionService.EnumerateSubscriptions();
        clientContext.Load(subscriptions, subs => subs.Where(sub => sub.Name == workflowName));
        clientContext.ExecuteQuery();
        foreach (var subscription in subscriptions)
        {
            var instanceService = workflowServiceManager.GetWorkflowInstanceService();
            var initiationData = new Dictionary<string, object>
            {
                {"pProjectName", project.Name},
                {"pDivision", _divisionData.GetDivisionName(project.DivisionId ?? Guid.Empty) },
                {"pOperatingGroup", "****TODO: Operating Group****"},
                {"pClientName", _clientData.GetClientName(project.ClientId ?? Guid.Empty) },
                {"pSiteUrl", "****TODO: Site URL****" }
            };
            var startResult = instanceService.StartWorkflow(subscription, initiationData);
            result = startResult.Value;
        }
    }
    return result;
}

Answer 1

string subscriptionID = "WFListSubscriptionID of your wf";//it is a guid
int itemID = "Item.ID, Id of a item that you start wf for";
Guid workflowSubscriptionIdGuid = new Guid(subscriptionID);
var workflowServiceManager = new WorkflowServicesManager(item.Web);
var workflowSubscriptionService = workflowServiceManager.GetWorkflowSubscriptionService();
var workflowSubscription = workflowSubscriptionService.GetSubscription(workflowSubscriptionIdGuid);
var inputParameters = new Dictionary<string, object>(); 
workflowServiceManager.GetWorkflowInstanceService().StartWorkflowOnListItem(workflowSubscription, itemID, inputParameters);

为什么StartWorkflow（）不能在C＃中启动我的工作流程？

1 个答案: