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Refresh a chart with new DataSource?

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mike
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mike asked on 06 Jul 2012, 09:24 PM
I am needing to reset my datasource to grab parameters from my page to reload the chart. Is there a way to make this happen?

Here is my code for the chart currently. I need change the querystring that goes back on the url for the remote datasource based on page values.

$("#chart").kendoChart({
  dataSource:
  {
      transport:{
          read:{
              url: "@Url.Action("BusinessUnitCompareChart")" + "?date=" + $("#DateFilter").val() + "&StructureId=" + "@ViewData["StructureId"].ToString()" + "&buids=" + "@ViewData["buids"].ToString()",
              dataType:"json"
          }
      },
      group:{ field:"Name"},
  
      sort:{
          field:"Name",
          dir:"asc"
      }
  },
  
  series:[{type:"column", field:"Count"}],
  seriesColors:["#C81717","#8E908F","#0098DB"],
  
  categoryAxis:{ field:"CategoryName"},
  
  theme:  "Metro",
  title: {
  text: "Open/ Aging/ Closed"
  },
                        
  tooltip: {
  visible: true
  },
  seriesClick: onSeriesClick
  });

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Robin
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answered on 16 Jul 2012, 06:48 PM
I create my datasource outside my chart constructor like
var dataSource = new kendo.data.DataSource({
// Fill in all your options here
});

Then you can call dataSource.read(); and it will refetch the data. So you can manipulate the filter etc. on the dataSource, then call .read() to get the different data.
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Robin
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