object - 如何从 Sharepoint 2010 客户端对象模型中读取选择字段

Question

我正在使用 Sharepoint 2010 对象模型。我正在尝试检索自定义列表的内容。一切正常，除非我尝试检索选择字段。

当我尝试检索选择字段时，出现 PropertyOrFieldNotInitializedException 异常...

这是我正在使用的代码:

            ClientContext clientContext = new ClientContext("https://mysite");
            clientContext.FormsAuthenticationLoginInfo = new FormsAuthenticationLoginInfo("aaa", bbb");
            clientContext.AuthenticationMode = ClientAuthenticationMode.FormsAuthentication;
            
            List list = clientContext.Web.Lists.GetByTitle("mylist");
            CamlQuery camlQuery = new CamlQuery();
            camlQuery.ViewXml = "<View/>";

            ListItemCollection listItems = list.GetItems(camlQuery);
            clientContext.Load(listItems);
            clientContext.ExecuteQuery();

            foreach (ListItem listItem in listItems)
            {

                listBoxControl1.Items.Add(listItem["Assigned_x0020_Company"]);

            }

Answer 1

var list = clientContext.Web.Lists.GetByTitle(listName);
clientContext.ExecuteQuery();

clientContext.Load(list.Fields, fields => fields.Include(field => field.Title));
clientContext.ExecuteQuery();

foreach (var field in list.Fields)
{
    if (field.Title == "YourChoiceFieldName")
    {
        clientContext.Load(field);
        clientContext.ExecuteQuery();
        return ((FieldChoice) field).Choices;
    }
}