Reputation: 43
I defined terms in the Term Store Management Tool which I added as "Managed Metadata" columns in a document library. I want to upload a document and to update its "Managed Metadata" columns. In order to do so, I wrote the following code:
void UploadDocument(Document document)
{
try
{
using (ClientContext context = SPHelper.GetClientContext())
{
List library = context.Web.Lists.GetByTitle("MyDocumentLibrary");
FileCreationInformation fileInfo = new FileCreationInformation
{
Url = "MyFileTarget",
Content = document.Content,
Overwrite = true
};
File file = library.RootFolder.Files.Add(fileInfo);
ListItem item = file.ListItemAllFields;
item["RegularColumn"] = "some data";
item["Metadata"] = "some other data";
item.Update();
context.ExecuteQuery(); // "The given guid does not exist in the term store." Exception thrown
}
}
catch (Exception ex)
{
LogHelper.RecordError("Failed to upload document", ex, System.Reflection.MethodInfo.GetCurrentMethod().Name);
}
}
I can upload a file and update its regular columns but I can't update the Metadata columns.
Is there a way to specify item["Metadata"] GUID ?
Upvotes: 4
Views: 3135
Reputation: 3625
The Term Guid can be found in Term Store:
Add reference to Microsoft.SharePoint.Client.Taxonomy.dll:
Here is the code snippet to set managed metadata field value with TaxonomyFieldValue class:
using (ClientContext context = new ClientContext(sharePointSite))
{
FileCreationInformation FCInfo = new FileCreationInformation();
FCInfo.Url = "http://sp2016/sites/dev/Shared%20Documents/Test.txt";
FCInfo.Overwrite = true;
FCInfo.Content = System.IO.File.ReadAllBytes(fileToUpload);
Web web = context.Web;
List library = web.Lists.GetByTitle(libraryName);
Microsoft.SharePoint.Client.File uploadfile = library.RootFolder.Files.Add(FCInfo);
ListItem item = uploadfile.ListItemAllFields;
item["Title"] = "some data";
var fields = library.Fields;
var field = fields.GetByInternalNameOrTitle("managedcolumn");
context.Load(fields);
context.Load(field);
context.ExecuteQuery();
var taxKeywordField = context.CastTo<TaxonomyField>(field);
TaxonomyFieldValue termValue = new TaxonomyFieldValue();
termValue.Label = "TermC";
termValue.TermGuid = "045830f1-f51e-4bac-b631-5815a7b6125f";
termValue.WssId = 3;
taxKeywordField.SetFieldValueByValue(item, termValue);
item.Update();
context.ExecuteQuery();
uploadfile.CheckIn("testcomment", CheckinType.MajorCheckIn);
context.ExecuteQuery();
}
Upvotes: 2