Hi 

been trying to find a solution to a problem i have trying to solve over the last few days and beginning to wonder if its even possible.

I have set up a "Dojo" with all the code snippets which can be found here - http://dojo.telerik.com/aBuVul/7

The issue stems from the need to be able to reference data with a name that may contain hyphen in a template.

an example can be seen below, more details examples can be seen on the Dojo link above

var DashFirstName = "first-name",
        dashData = new kendo.data.DataSource({
        data: [
          {"first-name": "Joe", "country": "Germany"}, 
          {"first-name": "Jane", "country": "UK"},
          {"first-name": "Maria", "country": "Spain"}
        ]
      });
      $("#grid2").kendoGrid({
        dataSource:dashData,
        columns: [{
          field: "[\"first-name\"]",
          test: "22",
          title: "First Name",
          template: "<input type='radio' name='#= data." + DashFirstName + "#'>#= data." + DashFirstName + "#",
          width: 200
        }, {
          field: "country",
          title: "Country"
        }]
      });

I've tried various escapes to no avail... Any ideas would be greatly appreciated.

Our application makes repeated calls to the spreadsheet control, sometimes numbering in the tens of thousands. The application logic sets cell values, then reads back the value of other, calculated cells.

Execution speed gets slower and slower over time. For example with a simple spreadsheet, I can run 500 iterations in roughly 10 seconds. The second block of 500 iterations takes 27 seconds and the 3rd block of 500 iterations takes 44 seconds. As a rough approximation, there is an exponential fall-off in performance, presumably due to memory-allocations internally.

The problem manifests itself in the cell SetValue() method. Initially, this method returns control to the calling program in less than 1ms. But after say, 1500 iterations, this method is taking 200 to 300ms.

In case it helps with reproducing the problem: this delay only occurs if SetValue() follows a call to the cell GetValue() method. If GetValue() does not get called, then repeated calls to the SetValue() method happen quickly, in <1ms

Am hoping there is an easy fix for this. 

Regards,

Mike Wiese

Dunsborough

Western Australia

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