public int RemoveProperties(
	Func<MetadataProperty, bool> predicate
)

Public Function RemoveProperties ( 
	predicate As Func(Of MetadataProperty, Boolean)
) As Integer

public:
int RemoveProperties(
	Func<MetadataProperty^, bool>^ predicate
)

member RemoveProperties : 
        predicate : Func<MetadataProperty, bool> -> int 

using (Metadata metadata = new Metadata(Constants.InputDocx))
{
    // Remove all the properties satisfying the predicate:
    // property contains the name of the document author OR
    // it refers to the last editor OR
    // the property value is a string that contains the substring "John" (to remove any mentions of John from the detected metadata)
    var affected = metadata.RemoveProperties(
            p => p.Tags.Contains(Tags.Person.Creator) ||
            p.Tags.Contains(Tags.Person.Editor) ||
            p.Value.Type == MetadataPropertyType.String && p.Value.ToString().Contains("John"));

    Console.WriteLine("Properties removed: {0}", affected);

    metadata.Save(Constants.OutputDocx);
}