.NET Graph SDK更新SharePoint在线列表项值 [英] .NET Graph SDK Updating Sharepoint Online List Item Values
问题描述
在将列表项上载到列表后,我试图将值添加到列表项上的自定义列.我可以将项目添加到列表中,并且可以查询列表并获取项目的数据,但是当我尝试为多余的字段添加数据时,出现以下Microsoft.SharePoint.Client.InvalidClientQueryException
错误:
I'm trying to add values to a custom column on a list item after uploading the list item to the list. I can get the item into the list, and I can query the list and get back the item's data, but when I try to add the data for the extra field I get the following Microsoft.SharePoint.Client.InvalidClientQueryException
error:
找到了没有类型名称的值,并且没有预期的类型可用. 指定模型后,有效载荷中的每个值都必须具有可以是以下类型的类型: 在有效负载中指定,由调用方显式指定,或从父值隐式推断.
A value without a type name was found and no expected type is available. When the model is specified, each value in the payload must have a type which can be either specified in the payload, explicitly by the caller or implicitly inferred from the parent value.
我不确定错误消息指的是什么值或型号.这是我的代码:
I'm not sure what value or model the error message is referring to. This is my code:
var item = await graphClient
.Drives[driveId]
.Root.ItemWithPath(fileName)
.ListItem.Request()
.Select("WebURL,Fields,SharepointIds")
.Expand("Fields")
.GetAsync();
var fieldVals = await graphClient
.Sites[SPUrl + ":"]
.Sites[SpPath + ":"]
.Lists[libId]
.Items[item.SharepointIds.ListItemId]
.Fields
.Request()
.GetAsync();
fieldVals.AdditionalData.Add("Phase",
JsonConvert.SerializeObject(tags));
await graphClient
.Drives[driveId]
.Root
.ItemWithPath(fileName)
.ListItem
.Fields
.Request()
.UpdateAsync(fieldVals);
最初,当我在执行fieldVals.AdditionalData.Add()
时,我有阶段"和一个List(string),这导致有关未设置OData字段类型的错误,但是我在文档中找不到任何表示OData预期内容的地方字段值是.我尝试将其设置为microsoft.graph.fieldValueSet
,但这没有用.
Originally when I was doing fieldVals.AdditionalData.Add()
I had "Phase" and a List(string) and that caused an error about the OData field type not being set but I haven't found anywhere in the documentation that says what expected OData field values are. I tried setting it to microsoft.graph.fieldValueSet
but that didn't work.
我正在尝试更新选择"列,该列允许多个选择作为复选框.
I'm trying to update a Choice column that allows multiple choices as checkboxes.
推荐答案
对于多选字段类型,实际上
For multi-choice field type, indeed, the presence of odata.type
annotation is mandatory in request payload, here is an example how to specify it:
PATCH https://graph.microsoft.com/v1.0/sites/{site-id}/lists/{list-id}/items/{item-id}/
{
"fields": {
"<ChoiceFieldName>@odata.type": "Collection(Edm.String)",
"<ChoiceFieldName>":["<val1>","<val2>"]
}
}
其中
-
ChoiceFieldName
-选择字段名称 -
val1
,val2
-字段值
ChoiceFieldName
- choice field nameval1
,val2
- field values
示例
假设列表包含名为Categories
的选择字段,则以下示例演示如何通过 msgraph-sdk-dotnet
:
Assuming a List contains a choice field named Categories
, then the following example demonstrates how to update list item via msgraph-sdk-dotnet
:
var choiceVals = new []{ "Cat1", "Cat2"};
await graphClient.Sites[siteId].Lists[listId].Items[itemId].Request().UpdateAsync(new ListItem()
{
Fields = new FieldValueSet
{
AdditionalData = new Dictionary<string, object>
{
{ "Categories@odata.type", "Collection(Edm.String)" },
{ "Categories", choiceVals }
}
}
});
参考
- Update an item in a list
- Entity Data Model: Primitive Data Types
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