Re: [visualization-api] Re: Bar chart freezes if click second time on a bar

Thank You  asgallant... I am also tried in Play ground like below
coding....I got freezing chart in Playground. Also I got error as "
"Uncaught TypeError: Cannot read property 'row' of undefined
(retrieve_cache?unique_id=d5541b9085ac908f60fae4763aba5cef3b2fdb30,58)"
 "

*My Play ground Code:*

> *
> *function drawVisualization() {
>   // Create and populate the data table.
>   var data = new google.visualization.DataTable();
>   var raw_data = [['Austria', 1336060, 1538156, 1576579, 1600652, 1968113
> , 1901067],
>                   ['Bulgaria', 400361, 366849, 440514, 434552, 393032,
> 517206],
>                   ['Denmark', 1001582, 1119450, 993360, 1004163, 979198,
> 916965],
>                   ['Greece', 997974, 941795, 930593, 897127, 1080887,
> 1056036]];
>
>   var years = [2003, 2004, 2005, 2006, 2007, 2008];
>
>   data.addColumn('string', 'Year');
>   for (var i = 0; i  < raw_data.length; ++i) {
>     data.addColumn('number', raw_data[i][0]);
>   }
>
>   data.addRows(years.length);
>   for (var j = 0; j < years.length; ++j) {
>     data.setValue(j, 0, years[j].toString());
>   }
>   for (var i = 0; i  < raw_data.length; ++i) {
>     for (var j = 1; j  < raw_data[i].length; ++j) {
>       data.setValue(j-1, i+1, raw_data[i][j]);
>     }
>   }
>
>   // Create and draw the visualization.
>   var chart=new google.visualization.BarChart(document.getElementById(
> 'visualization'));
>   chart.draw(data,
>            {title:"Yearly Coffee Consumption by Country",
>             width:600, height:400,
>             vAxis: {title: "Year"},
>             hAxis: {title: "Cups"}}
>       );
>   google.visualization.events.addListener(chart, 'select', function(){
>
>     alert(chart.getSelection()[0].row);  //Alert displayed on First.
> Again if i click same bar,Chart Freezes.
>
>   });
> }



On Fri, Apr 6, 2012 at 6:23 PM, asgallant <[EMAIL PROTECTED]> wrote:

> I plugged that listener code into the Viz playground's BarChart example
> (changing "timedata" to "data" to make it compatible), and it worked fine;
> it didn't freeze at all.  The problem must be somewhere else in your code,
> can you post the code or a link to the page?
>
>
> On Friday, April 6, 2012 7:49:02 AM UTC-4, Ram wrote:
>>
>> I have added Click event for each bar in Visualization Bar Chart. If i
>> click first time on a Bar, the event triggers and my expected result
>> displays properly. But Again if i click on same Bar, event triggers but the
>> Chart freezes. After i am not able to interact with chart. My Bar chart
>> Click event is given below. Note: i have Bar chart with 4 columns and n
>> no.of rows.
>>
>>
>> <https://lh4.googleusercontent.com/-_2QTo7Va1vM/T37XJkpzmmI/AAAAAAAAACs/l0r0e_9jiNI/s1600/6-4-2012+17.4.30+1.jpg>
>>
>>
>> My Click Event:
>>
>> google.visualization.events.**addListener(chart, 'select', function(){
>>  var row = chart.getSelection()[0].row; *//Chart freezes in this line if
>> i click a bar second time
>> * var column = chart.getSelection()[0].**column;
>>  var seluser= timedata.getValue(row, 0);
>>  alert('You selected ' + timedata.getValue(row, 0));
>>  alert(row+","+column); //These lines run properly when click first time
>> on Bar in Bar Chart.
>> });
>>
>>
>>
>>  --
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