How to pass url parameter value into string filter input in Google visualization

Question

Hi i am stuck on pass URL parameter values into string filter input in Google visualization.i want to pass url parameter when report is ready instead of user type on it and

Answer 1

To get the query parameter use the code (or other that you prefer):

function getQueryVariable(variable) {
       var query = window.location.search.substring(1);
       var vars = query.split("&");
       for (var i=0;i<vars.length;i++) {
               var pair = vars[i].split("=");
               if(pair[0] == variable){return pair[1];}
       }
       return(false);
}

https://css-tricks.com/snippets/javascript/get-url-variables/

Add to your filter the state value.

var id = getQueryVariable('id'));

var fteFilter = new google.visualization.ControlWrapper({ 
    'controlType': 'StringFilter', 
    'containerId': 'control_fteFilter', 

    'options': {           
      'filterColumnLabel': 'FTE Id' ,          
      'matchType':'any',
      'ui': {     
          'labelStacking': 'vertical',
          'label': 'FTE Id :'    
        }
    },
    state: {
        value: id
    }    
  }); 

Use selectedValues array to CategoryFilter.

state: {
    selectedValues: [id]
}