jquery - KendoUI Grid number column will not edit as number -

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i have column called "quantity", connected field (column name) "quantity".

in model have set so:

... quantity: {     type: 'number',     editable: true,     validation: {         min: 1     } } ...

however, when click on cell edit it, nothing.

if change type: string, works fine. number can use number rollers.

how can work?

the information shared not show issue comes from, missing something.

check jsbin - same , works expected, try edit id field of type number.

    schema: {     model: {         id: "id",         fields: {             id: { type: "number" },             name: { type: "string" },             position: { type: "number" }         }     } }

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