onBeforeFilter

fires before component filtering

columnId	string|number	the ID of the column for filtering
value	string	the filter value

boolean

returning false will prevent filtering

Example

view.data.attachEvent("onBeforeFilter", function(column, value){
    if (value == 0) return false;
 
    webix.message("Filtering...");
    return true;
});

Returning false from the event handler will block further processing, and the data will not be filtered.

If you have multiple filters assigned, the event will fire for all of them.

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