What is the easy way to update Managed Metadata field multi select values using client object model C#?

Hi,

Here are two blog for your reference:

How to Work with Managed Metadata Columns by Using the SharePoint Client Object Model

http://ift.tt/v18D38

SharePoint 2010 Code Tips – Setting a Managed Metadata Field with the Client Object Model

http://ift.tt/1ppE5MV

Best Regards

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Dennis Guo

TechNet Community Support