InternalValidate method

@override void InternalValidate()

Validates this instance.

Implementation

@override
void InternalValidate() {
  super.InternalValidate();

  for (GroupMember groupMember in this.ModifiedItems) {
    if (StringUtils.IsNullOrEmpty(groupMember.Key)) {
      throw new ServiceValidationException(
          "Strings.ContactGroupMemberCannotBeUpdatedWithoutBeingLoadedFirst");
    }
  }
}