protected void btnLists_Click(object sender, EventArgs e) { var SPContext = SharePointContextProvider.Current.GetSharePointContext(Context); using (var clientContext = SPContext.CreateUserClientContextForSPHost()) { ListCollection lists = clientContext.Web.Lists; clientContext.Load <ListCollection>(lists); clientContext.ExecuteQuery(); foreach (List list in lists) { listOfLists.Add(list.Title); } SPList.DataSource = listOfLists; SPList.DataBind(); } }