onCollectValues

fires after a datagrid has collected options

function onCollectValues(
    // the id of the column
    id: string,
    // the object that contains options
    data: object
): void

Example

datagrid.attachEvent("onCollectValues", function(id, data){
  if (data.values[0].value == "")
  data.values[0].value = "Select something";
});

also check the next samples:

• Customizing Automatic Options

Details

Assuming you need to filter data via a dedicated popup. DataGrid collects the necessary values and populates the popup with them. When all values are collected the onCollectValues event is fired.