如何使用 c# 在 SharePoint 中编辑关键字字段?

问题描述

我可以编辑其他字段，如标题，甚至是我自己创建的字段，但我不知道如何将关键字添加到我上传的文档中.这是我到目前为止.我得到的错误说关键字列不存在.关键字字段类型是托管元数据.这是我想要将关键字添加到 这里是我想要添加的位置的图像关键词转化为

I can edit other fields like Title and even my own created fields, but I cant figure out how to add in Keywords to a document I upload. This is what I have so far. The error I get says that the Keywords column does not exist. The Keywords fields type is Managed Metadata. Here is a image of where I want to add keywords into Here is a image of where I want to add keywords into

更新:这是有效的更新代码

Update: Here is the updated code of what worked

    static void AddMetaData(ClientContext ctx, string fName, string kWords )
    {
        List list = ctx.Web.Lists.GetByTitle("Documents");
        ListItemCollection items = list.GetItems(CamlQuery.CreateAllItemsQuery());
        ctx.Load(items); // loading all the fields
        ctx.ExecuteQuery();

        TaxonomySession session = TaxonomySession.GetTaxonomySession(ctx);
        var store = session.GetDefaultKeywordsTermStore();
        var terms = store.KeywordsTermSet.GetAllTerms();
        ctx.Load(store, i => i.DefaultLanguage);
        ctx.ExecuteQuery();

        var collection = new System.Collections.ObjectModel.Collection<Term>();
        var keywords = kWords.Split(';');
        foreach (var key in keywords)
        {
            var filtered = ctx.LoadQuery(terms.Where(t => t.Name == key));
            ctx.ExecuteQuery();
            var term = filtered.SingleOrDefault();
            if (term != null)
                collection.Add(term);
        }

        foreach (var item in items)
        {
            var taxonomyField = ctx.CastTo<TaxonomyField>(list.Fields.GetByInternalNameOrTitle("Keywords"));
            ctx.Load(taxonomyField);
            ctx.ExecuteQuery();
            taxonomyField.SetFieldValueByCollection(item, collection, store.DefaultLanguage);
            item.Update();
            ctx.ExecuteQuery();
        }
    }

推荐答案

这是一个分类字段，因此首先您必须从托管元数据存储中获取关键字:

It's a taxonomy field so first you have to get your keywords from the managed metadata store:

TaxonomySession session = TaxonomySession.GetTaxonomySession(context);
var store = session.GetDefaultKeywordsTermStore();
var terms = store.KeywordsTermSet.GetAllTerms();
context.Load(store, i => i.DefaultLanguage);
context.ExecuteQuery();

var collection = new System.Collections.ObjectModel.Collection<Term>();
var keywords = new string[] { "Key1", "Key2" };
foreach (var key in keywords)
{
    var filtered = context.LoadQuery(terms.Where(t => t.Name == key));
    context.ExecuteQuery();
    var term = filtered.SingleOrDefault();
    if (term != null)
        collection.Add(term);
}

然后使用包含在 TaxonomyField 类中的方法设置字段:

Then set field using method contained in TaxonomyField class:

var taxonomyField = context.CastTo<TaxonomyField>(list.Fields.GetByInternalNameOrTitle("Keywords"));
context.Load(taxonomyField);
context.ExecuteQuery();
taxonomyField.SetFieldValueByCollection(item, collection, store.DefaultLanguage);
item.Update();
context.ExecuteQuery();

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