diff --git a/stack/cas/castext2/blocks/parsons.block.php b/stack/cas/castext2/blocks/parsons.block.php index ae7091037c9961131f42866e99f14801586c7200..172c6974cd9c64a38c14c87c04fdbe8ea067ba09 100644 --- a/stack/cas/castext2/blocks/parsons.block.php +++ b/stack/cas/castext2/blocks/parsons.block.php @@ -293,6 +293,8 @@ class stack_cas_castext2_parsons extends stack_cas_castext2_block { $code .= 'stackSortable.add_headers(headers, available_header);' . "\n"; $code .= 'stackSortable.generate_used();' . "\n"; $code .= 'stackSortable.generate_available();' . "\n"; + // Update the empty placeholders in grid mode, which is required for non-empty start or fill in correct responses. + $code .= 'stackSortable.update_grid_empty_css();' . "\n"; // Create the Sortable objects. // First, instantiate with default options first in order to extract all possible options for validation.