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WebDAV: Set or update the Access Control List (ACL) of the resource
To set the ACL for the resource use TElWebDAVClient.SetAcl() method. Fill the instance of TElWebDAVACL class with TElWebDAVACE objects, each representing an ACL element. Then pass the instance of TElWebDAVACL as NewACL parameter of SetAcl() method.
To alter the existing ACL, first retrieve the ACL for the resource, modify the object list, then use the above SetAcl() method.