CODEWITHSUNDEEP
google-visualizationdashboardgetselection
MegaByteMe
MegaByteMe

Reputation: 91

How to interact with a table in a dashboard drawn by using google graphs api?

I have a dashboard containing a table and a string filtering box. I would like to interact with the table to be able to select rows and retrieve respective data from it.

after slight changes I got the getSelection() method working but there appeared another problem.. With the code below I try to filter the table and then select and get row data.. It all seems okay but when I do so the filtered table row numbers and the row numbers in the actual data does not match. that is I end up alerting the row data with reference to the pre-filtered table... Again any suggestion is highly valued.. thanks..

       var dashboard, table, data;

  function drawVisualization() {

    var array = new Array(['ticker','time','bid','open','high','low','volume']);
    var ticker, time, bid, open, high, low, volume; 
        $.get('php/getdata.php', {input: 'stocklist'}, function(data1){

        $.each(data1, function(index, value){           
            ticker = value.ticker;
            time = value.time;
            bid = parseFloat(value.bid);
            open = parseFloat(value.open);
            high = parseFloat(value.high);
            low = parseFloat(value.low);
            volume = parseFloat(value.volume);
            array.push([ticker, time, bid, open, high, low, volume]);
        });

    data = google.visualization.arrayToDataTable(array);

    var stringFilter = new google.visualization.ControlWrapper({
      'controlType': 'StringFilter',
      'containerId': 'control1',
      'options': {
        'filterColumnLabel': 'ticker'
      }
    });

    table = new google.visualization.ChartWrapper({
      'chartType': 'Table',
      'containerId': 'chart1',
      'options': {'showRowNumber': false, 'height': '130px', 'width': '1000px'}
    });

    dashboard = new google.visualization.Dashboard(document.getElementById('dashboard'))
    dashboard.bind(stringFilter, table);
    dashboard.draw(data);

    google.visualization.events.addListener(table, 'select', selectHandler);
  }, "json");
  }

  function selectHandler() {
    var selection = table.getChart().getSelection();

  for (var i = 0; i < selection.length; i++) {
    var item = selection[i];
    if (item.row != null && item.column != null) {
        } else if (item.row != null) {
        stockID = data.getFormattedValue(item.row, 0);
        } else if (item.column != null) {
        stockID = data.getFormattedValue(0, item.column);
        }
    }
    if (stockID == '') {
    return;
    }       
alert(stockID);
}

  google.setOnLoadCallback(drawVisualization);

Upvotes: 2

Views: 968

Answers (1)

BananaJoe
BananaJoe

Reputation: 137

I've had a similar problem. You have to get the new DataTable after applying the filter. Try changing 

stockID = data.getFormattedValue(item.row, 0);

to

stockID = table.getDataTable().getFormattedValue(item.row, 0);

and the same for the other case.

cheers

Upvotes: 1

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