filtering a data-source throws error: no method 'toLowerCase'

[Dean]

I'm trying to filter a data-source but I get the error described below. I did some research and found that it can normally be resolved by providing a schema.model that sets the offending property type to a number and this should tell kendoUI not to use toLowerCase() on it. Despite making this change, as you will see in the example, I still get the error. I'd appreciate some help.

Error message: Uncaught TypeError: Object 1 has no method 'toLowerCase'

Example: http://jsbin.com/ocehiq/1/edit - the error occurs when you change the selected category, which is supposed to filter the list of products

[Nikolay Rusev]

Hello Dean,

The value that is being passed to filter descriptor must of correct type, not only the model filed definition. What this is means is that the value must be cast to number in the following line:

myViewModel.productSource.filter({
 field: "Category_id",
 operator: "eq",
 value: ~~$(e.currentTarget).val()
});

 

Here is an updated fiddle: http://jsbin.com/ocehiq/4/edit

All the best,
Nikolay Rusev
the Telerik team

[Dean]

Thanks! The more I learn about Kendo UI Mobile, the more I learn about JavaScript in general too.