onColumnGroupCollapse

fires when grouped columns are either collapsed or expanded

void onColumnGroupCollapse(string column_id,string batch_id,boolean is_opened){ ... };

Parameters

column_idstringthe ID of the aggregating column (the column that unites the batch)
batch_idstringthe ID of the batch to which the collapsed/expanded columns belong
is_openedbooleansignals if the columns were collapsed (false) or expanded (true)

Example

const batchStates = {
  batch1:false,
  batch2:false
};
$$("datatable1").attachEvent("onColumnGroupCollapse",function(colId, btchId, open){
  batchStates[btchId] = open;
});

See also
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