How to Remove a Metadata Schema from a Folder using Core Services?

Question

I want to remove the Metadata Schema from a folder using the core service API. I have tried setting the MetaDataSchema and MetaData properties of the folder to null but this doesn't change anything.

var organizationalItem = (FolderData)client.Read(organizationalItemID, new ReadOptions());
organizationalItem.Metadata = null;
organizationalItem.MetadataSchema = null;
organizationalItem = (FolderData)client.Save(organizationalItem, new ReadOptions());

Any ideas what I am doing wrong?

Answer 1

Looks like I have to set the MetaDataSchema to an "empty" LinkToSchemaData object instead of null

var organizationalItem = (FolderData)client.Read(organizationalItemID, new ReadOptions());
var emptySchema = new LinkToSchemaData();
emptySchema.IdRef = "tcm:0-0-0";
organizationalItem.MetadataSchema = emptySchema;
organizationalItem = (FolderData)client.Save(organizationalItem, new ReadOptions());