4
我試圖使用自定義工作流操作更新不同網站中的列表。這些網站位於同一網站集內。我已成功將自定義操作部署到SharePoint服務器。當我運行包含此操作的工作流程時,工作流程成功完成且沒有錯誤。我確定該操作正在執行,因爲我在工作流程歷史日誌中看到包含service.LogToHistoryList()
的行的結果,並且它們包含期望值。問題是目標列表項目實際上未被更新。以下是用於更新列表項目的代碼部分。使用自定義工作流程活動更新同一網站集內其他網站中的列表項
try
{
ISharePointService service = (ISharePointService)executionContext.GetService(typeof(ISharePointService));
service.LogToHistoryList(this.WorkflowInstanceId, SPWorkflowHistoryEventType.WorkflowComment, 0, TimeSpan.Zero, "Debugging Output", SiteUrl, string.Empty);
service.LogToHistoryList(this.WorkflowInstanceId, SPWorkflowHistoryEventType.WorkflowComment, 0, TimeSpan.Zero, "Debugging Output", List, string.Empty);
service.LogToHistoryList(this.WorkflowInstanceId, SPWorkflowHistoryEventType.WorkflowComment, 0, TimeSpan.Zero, "Debugging Output", Column, string.Empty);
service.LogToHistoryList(this.WorkflowInstanceId, SPWorkflowHistoryEventType.WorkflowComment, 0, TimeSpan.Zero, "Debugging Output", Value, string.Empty);
service.LogToHistoryList(this.WorkflowInstanceId, SPWorkflowHistoryEventType.WorkflowComment, 0, TimeSpan.Zero, "Debugging Output", updateCol, string.Empty);
service.LogToHistoryList(this.WorkflowInstanceId, SPWorkflowHistoryEventType.WorkflowComment, 0, TimeSpan.Zero, "Debugging Output", updateVal, string.Empty);
ClientContext clientContext = new ClientContext(SiteUrl);
SP.List oList = clientContext.Web.Lists.GetByTitle(List);
CamlQuery camlQuery = new CamlQuery();
camlQuery.ViewXml = "<View><Query><Where><Geq><FieldRef Name='"+Column+"'/>" +
"<Value Type='String'>"+Value+"</Value></Geq></Where></Query><RowLimit>1</RowLimit></View>";
ListItemCollection collListItem = oList.GetItems(camlQuery);
clientContext.Load(collListItem);
clientContext.ExecuteQuery();
foreach (ListItem oListItem in collListItem)
{
oListItem[updateCol] = updateVal;
oListItem.Update();
clientContext.Load(oListItem);
clientContext.ExecuteQuery();
}
return ActivityExecutionStatus.Closed;
}
catch (Exception ex)
{
ISharePointService service = (ISharePointService)executionContext.GetService(typeof(ISharePointService));
if (service == null)
{
throw;
}
service.LogToHistoryList(this.WorkflowInstanceId,SPWorkflowHistoryEventType.WorkflowError, 0, TimeSpan.Zero,"Error Occurred", ex.Message, string.Empty);
return ActivityExecutionStatus.Faulting;
}
爲什麼在自定義操作中使用客戶端對象模型?您可以使用服務器對象模型。 –
也嘗試刪除clientContext.Load(oListItem);在foreach循環中調用。我有一種感覺,當你在更新後調用它時,它會完全重新加載項目並覆蓋所有更改。 –
@ Yevgeniy.Chernobrivets我使用的是COM,因爲我在Sharepoint開發方面的經驗非常有限,而且我剛剛在幾天前開始使用C#。不幸的是,只是刪除該行會得到相同的結果。感謝您的幫助,您的第一條評論幫助我找到了解決方案。 – cwdj