Grid Filter fails on boolean data

[Jim]

My grid is defined by:

$('#formGrid').kendoGrid({

       dataSource: [

           { FormDesc: 'hello', FormID: 1, IsEnabled: true },

           { FormDesc: 'two', FormID: 2, IsEnabled: false }

       ]

       , columns: [

        { field: 'FormDesc', title: 'Form Name', width: 140 },

        { field: 'IsEnabled', title: 'Enabled', width: 40 }

       ]

       , filterable: true

       , resizable: true

       , scrollable: true

   });

If a user filters the column on Enabled the grid never returns. This appears to be caused by the boolean value of IsEnabled.

You can see this in the following jsfiddle: http://jsfiddle.net/berandorFiddle/wYQy2/1/ 

An obvious workaround is to convert my boolean to a string.  Is there a more elegant way to work around this?

[Alexander Valchev]

Hi Jim,

The problems comes from the fact that the type of dataSource fields is not declared. By default the fields are interpret as strings if the type is not specified explicitly. If you set up the field IsEnabled field as boolean the problem will disappear and the grid will display a filterable menu customized for boolean values.

schema: {
    model: {
        id: "FormID",
        fields: {
            FormDesc: {type: "string"},
            FormID: {type: "number"},
            IsEnabled: {type: "boolean"}
        }
    }
}

Please check the updated fiddle: http://jsfiddle.net/valchev/wYQy2/4/ 

Regards,
Alexander Valchev
the Telerik team

[Stef Heyenrath]

See this fiddle which translates an enum to a string.

The question is : how to update the filter so that the 2 values are shown in the dropdownlist ?