SharePoint 列表项的 AddAsync 上无法识别字段 [英] Field Not Recognized on AddAsync of SharePoint List Item

问题描述

当我尝试使用基本日历/列表字段创建新列表项时，一切正常.但是，当我尝试使用非标准"字段(即我添加的字段)执行此操作时，出现字段无法识别"错误.

When I try to create a new list item with the basic calendar/list fields everything works perfectly. However, when I try to do so with a "non-standard" field i.e. a field I added, I am getting a "field not recognized" error.

该字段显然就在那里！是否需要通过某种特殊方式来填充这些自定义字段?

The field is clearly there! Is there some special way I need to populate these custom fields?

// get a specific list
ISiteListsCollectionPage list = await graphClient.Sites["root"].Lists.Request()
    .Filter($"DisplayName eq 'Outlook Integration'").GetAsync();

// create a dictionary of [calendar] list properties
Dictionary<string, object> props = new Dictionary<string, object>();

// populate properties, all of these work just fine
props.Add("Title", evt.Subject);
props.Add("Location", evt.Location?.DisplayName);
props.Add("EventDate", utcStart.ToString("yyyy-MM-ddTHH:mm:ssK"));
props.Add("EndDate", utcEnd.ToString("yyyy-MM-ddTHH:mm:ssK"));
props.Add("Description", Regex.Replace(evt.Body.Content, "<.*?>", String.Empty)); // remove HTML content

// populate custom properties
props.Add("ResourceID", evt.Id); // throws error: Field 'ResourceID' is not recognized

// create list item with our properties dictionary
var newItem = new ListItem
{
    Name = "My New Event",
    Fields = new FieldValueSet()
    {
        AdditionalData = props
    }
};

// call the service and get the result
var newListItem = await graphClient.Sites["root"].Lists[list[0].Id].Items.Request().AddAsync(newItem);

这是我列表中的完整字段列表:

This is the complete list of fields on my list:

在这里您可以看到显示名称是ResourceID"，而 API 名称是O365EventId".但是，两者都会导致相同的错误，无法识别字段."

Here you can see the display name is "ResourceID" whereas the API name is "O365EventId." However, both result in the same error, "Field not recognized."

注意: ResourceID 是我添加的字段之一.如何通过 Graph API 设置此字段的值?

Note: ResourceID is one of the fields that I added. How can I set the value of this field via the Graph API?

推荐答案

Marc 在关于列名的评论中说得对，提供的屏幕截图显示 Column.displayName 即

Marc is right by saying in comment regarding column name, the provided screenshot displays Column.displayName which is

面向用户的列名称.

但实际上 FieldValueSet.AdditionalData 期望作为键的是 Column.name ，它是:

but what actually FieldValueSet.AdditionalData expects as a key is Column.name which is:

列在 字段项目清单.有关面向用户的名称，请参阅 displayName.

The API-facing name of the column as it appears in the fields on a listItem. For the user-facing name, see displayName.

在您的情况下，很可能 displayName 和 name 属性不同，您可以通过以下端点进行验证:https://graph.microsoft.com/v1.0/sites/root/lists/Outlook Integration/columns

In your case most likely displayName and name properties are different, you could verify it via following endpoint: https://graph.microsoft.com/v1.0/sites/root/lists/Outlook Integration/columns

这就是发生此错误的原因.

and that's the reason why this error occurs.

通过图形 API 客户端 (C#)，您可以看到任何给定列表的所有列的列表，如下所示:

Via the Graph API client (C#), you can see a list of all columns for any given list like so:

// get specific list by name
ISiteListsCollectionPage list = await graphClient.Sites["root"].Lists.Request()
    .Filter($"DisplayName eq 'YOUR_LIST_NAME_HERE'").GetAsync();

// get columns and output them to the log as a serialized object
var listColumns = await graphClient.Sites["root"].Lists[list[0].Id].Columns.Request().GetAsync();
logger.LogInformation($"List Columns Object: {JsonConvert.SerializeObject(listColumns).ToString()}");

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