Sharepoint 帶圖表的列表項值 API

Question

我有一個 SharePoint 列表，我可以通過圖形 API 成功連接到它。它拉出列表項，但似乎只顯示基本數據。 如何獲取字段和這些字段中包含的數據，以便我可以顯示/更新該數據？

另外，我假設 SPO Graph API enpoint 是： https://graph.microsoft.com/v1.0/

var assetlist = await graphClient
            .Sites[AllCompanySiteID]
            .Lists[CurrentBuildsListID]
            .Items
            .Request()
            .GetAsync();

        totalitems.AddRange(assetlist.CurrentPage);

        while (assetlist.NextPageRequest != null)
        {
            assetlist = assetlist.NextPageRequest.GetAsync().Result;
            totalitems.AddRange(assetlist.CurrentPage);
        }

Answer 1

目前尚不清楚您是想 (1)僅獲取數據字段和僅更新數據字段，還是 (2) 您需要從選擇中更新數據字段- 如有疑問，我會寫這兩種方法。 如果您的需求是第 (2) 項，您可能希望映射/建模業務規則以開發例程。 根據 Microsoft Docs，以下示例：

(1)僅獲取數據字段：

GraphServiceClient graphClient = new GraphServiceClient( authProvider );

var queryOptions = new List<QueryOption>()
{
    new QueryOption("expand", "fields(select=Field1,Field2,Field3)")
};

var items = await graphClient.Sites["{site-id}"].Lists["{list-id}"].Items
    .Request( queryOptions )
    .GetAsync();

(1)僅更新數據字段：

GraphServiceClient graphClient = new GraphServiceClient( authProvider );

var fieldValueSet = new FieldValueSet
{
    AdditionalData = new Dictionary<string, object>()
    {
        {"Field1", "Test1"},
        {"Field2", "Test2"}
    }
};

await graphClient.Sites["{site-id}"].Lists["{list-id}"].Items["{listItem-id}"].Fields
    .Request()
    .UpdateAsync(fieldValueSet);

(2) Update Data Fields from Selection例子：

GraphServiceClient graphClient = new GraphServiceClient( authProvider );
    
    var queryOptions = new List<QueryOption>()
    {
        new QueryOption("expand", "fields(select=Field1,Field2,Field3)")
    };
    
    var items = await graphClient.Sites["{site-id}"].Lists["{list-id}"].Items
        .Request( queryOptions )
        .GetAsync();
foreach(var item in items)
{
    //an example of Business Rule: Update item based by some Select into current item
    if(null != item.Fields.AdditionalData["Field1"] && !string.IsNullOrWhiteSpace(item.Fields.AdditionalData["Field1"].ToString()))
    {
        var fieldValueSet = new FieldValueSet
        {
            AdditionalData = new Dictionary<string, object>()
            {
                {"Field2", "Test2"},
                {"Field3", "Test3"}
            }
        };
        await graphClient.Sites["{site-id}"].Lists["{list-id}"].Items[item.Id.ToString()].Fields
        .Request()
        .UpdateAsync(fieldValueSet);
    }
}

Answer 2

我想更新“選擇列”的值，但 UpdateAsync 方法拋出異常並顯示以下消息“代碼：無效請求 - 消息：無效請求”。

與上面的代碼唯一不同的是該字段是一個選擇列，並且允許多個值。

例子：

GraphServiceClient graphClient = new GraphServiceClient( authProvider );
var fieldValueSet = new FieldValueSet
{
    AdditionalData = new Dictionary<string, object>()
    {
        {"Field1", "Test1"},
        {"Field2", ["Test2-A", "Test2-B", "Test3-C"]}
    }
};    
await graphClient
    .Sites["{site-id}"]
    .Lists["{list-id}"]
    .Items["{listItem-id}"]
    .Fields
    .Request()
    .UpdateAsync(fieldValueSet);

任何的想法？