title: My Kendo chart is not filtered in a proper way
body: <p>I have a kendo chart with group field and also have tree-view with  3 check-boxes.I want to filter the graph with the check-box checked event.but in my application it is not working.please any one help me.
  my chart code is</p>
  
  <pre><code>    $("#myChart").kendoChart({
      theme: $(document).data("kendoSkin") || "default",
      dataSource: {
      data: tmpData2,
      sort: {
              field: "date",
              dir: "asc"
          },
      group: {
              field: "close"
          },
          schema: {
              model: {
                  fields: {
                      date: {
                          type: "date"  }
                  }
              }
          }
      },
      title: {
          text: "My Date-aware Chart"
      },
      legend: {
          position: "bottom"
      },
      seriesDefaults: {
          type: "line",
          labels: {
              visible: true
          },
          missingValues: "gap"
      },
      series: [{
          name: "Close",
          field: "closeA",
          axis: "A"
      },
  
      {
          name: "Close",
          field: "closeb",
          axis: "B"
      },
               {      name: "Close",
          field: "closec",
          axis: "B"
           }],
          valueAxis: [{
          name: "A",
          labels: {
              format: "{0}%"
          }
      },
      {
          name: "B",
          labels: {
              format: "{0}D"
          }
      }],
      categoryAxis: {
          type: "Date",
          field: "date",
          axisCrossingValue: [0, 1000]
      }
  
  });
  </code></pre>
  
  <p>and my tree-view code is</p>
  
  <pre><code>    $("#treeview").on("change", function (e) {
          console.log("click", multi.text());
          var selected = multi.text().split(",");
          console.log("multi", selected);
          var condition = {
              logic  : "or",
              filters: [
              ]
          };
          $.each(selected, function (idx, elem) {
              condition.filters.push({ field: " close", operator: "eq", value: elem.trim() });
          });
          mychart.dataSource.filter(condition);
      });
  </code></pre>